Mounting System

Bulletin 141A MCS Mounting System

Modularity makes planning easy
Factory-assembled starters
Easy starter exchange
Flexible field assembly of starters
- DOL starters
- Reversing starters
- Star-Delta starters
- Soft starters
- Inverter
- Complete range of accessories
3 mounting methods
- On busbars
- On 35 mm and 75 mm top hat rails
- Screw fixing

Standards Compliance and Certifications

Standards Compliance

UL 508
CSA 22.2 No. 14
EN 60947

Certifications

CE
cULus Recognized (File No. E 56639, Guide NMTR, NMTR8)

Examples given in this section are for reference purposes. This basic explanation should not be used for product selection; not all combinations will produce a valid catalog number.

141A

–

a		b		c		d
Type		Length		Width		Top Hat Rail
Code	Description	Code	Description	Code	Description	Code	Description
G	Standard busbar module with wires	S	Short (200 mm)	45	45 mm	R	RA-specific plastic rail
		M	Medium (260 mm)	54	54 mm	S	Standard plastic rail
				63	63 mm	M	Metal rail
				72	72 mm
				81	81 mm
				90	90 mm
				180	180 mm
				270	270 mm

e		f		g
Bottom Hat Rail		Current Rating		Frame Size
Code	Description	Code	Description	Code	Description
R	RA-specific rail	Blank	0 A (no wires)	H	For 140U-H or 140M-H
S	Standard rail	16	16 A
H	Rail carrier	25	25 A
Blank	No bottom rail	45	45 A
		125	125 A

141A

–

a		b		c		d
Type		Length		Width		Top Hat Rail
Code	Description	Code	Description	Code	Description	Code	Description
F	Standard busbar module with terminals	S	Short (200 mm)	45	45 mm	R	RA-specific plastic rail
		M	Medium (260 mm)	54	54 mm	S	Standard plastic rail
		L	Long (320 mm)	63	63 mm	V	Screw mounting variable positions
				72	72 mm
				81	81 mm
				108	108 mm
				110	110 mm
				250	250 mm

e		f		g
Bottom Hat Rail		Current Rating		Terminal Location
Code	Description	Code	Description	Code	Description
S	Standard rail	25	25 A	Blank	Terminals on top
Blank	No bottom rail	63	63 A	T	Terminals on top
		200	200 A	B	Terminals on bottom
		250	250 A	U	Terminals on top or bottom
		630	630 A

141A

–

a		b		c		d
Type		Length		Width		Top Hat Rail
Code	Description	Code	Description	Code	Description	Code	Description
S	ISO (isolation) busbar module with wires	S	Short (200 mm)	45	45 mm	R	RA-specific plastic rail
		M	Medium (260 mm)	54	54 mm	S	Standard plastic rail
				63	63 mm

e		f
Bottom Hat Rail		Current Rating
Code	Description	Code	Description
R	RA-specific rail	Blank	0 A (no wires)
S	Standard plastic rail	25	25 A
		45	45 A

Examples given in this section are for reference purposes. This basic explanation should not be used for product selection; not all combinations will produce a valid catalog number.

141A

–

a		b		c		d
Type		Length		Width		Top Hat Rail
Code	Description	Code	Description	Code	Description	Code	Description
W	Panel mounting modules	S	Short (200 mm)	45	45 mm	R	RA-specific plastic rail
		M	Medium (260 mm)	54	54 mm	S	Standard plastic rail
		L	Long (333 mm)	63	63 mm

e		f
Bottom Hat Rail		Terminal Location
Code	Description	Code	Description
R	RA-specific plastic rail	P	With PE terminal

141A	–	C		U		H		125		B
		a		b		c		d		e

a		b		c		d
Type		Length		Width		Current Rating
Code	Description	Code	Description	Code	Description	Code	Description
C	Busbar module for specific devices	U	Universal — 140U or 140M	H	Frame size H	125	125 A
				J	Frame size J	250	250 A
				L	Frame sizes K and L	600	600 A

e
Terminal Location
Code	Description
Blank	Rear connecting studs (suitable for top or bottom)
T	Wires on top
B	Wires on bottom

Product Selection

ISO Busbar Modules

2-part construction
- Device Adapter Plate (or DAP) (carrying the starter) snaps onto the base of the module
- Base module remains on busbar when exchanging starters, providing isolation from live parts
Test position with load circuit isolated
Designed for use with control plug (order separately)
Modules with current ratings supply the load current by means of wire connections matched to Bulletin 140-M motor protection circuit breakers
Modules can form bigger platforms using the connection clips (see accessories)
For plugging on 5 mm or 10 mm thick busbars
Meets feeder circuit spacings per UL 508A

Description	Rated Thermal Current I_th [A]	Width [mm]	Rails	Pkg. Qty.	Cat. No.
ISO Busbar Modules with Wires — Short Length Wires on DAP for electrical connection 200 mm tall Top Hat Rails: R = MCS-Specific top hat rail	25	45	2R	1	141A-SS45RR25
		54			141A-SS54RR25
	45	54			141A-SS54RR45
		63			141A-SS63RR45
	Without electrical connections	45	1R	1	141A-SS45R
		54			141A-SS54R
ISO Busbar Modules with Wires — Medium Length Wires on DAP for electrical connection 260 mm tall Top Hat Rails: R = MCS-Specific top hat rail; S = Standard top hat rail	25	45	1R+1S	1	141A-SM45RS25
		54			141A-SM54RS25
	45	54			141A-SM54RS45
		63			141A-SM63RS45
	Without electrical connections	45	1S	1	141A-SM45S
		54			141A-SM54S
		63			141A-SM63S

Standard Busbar Modules

Modules plug directly onto the busbar
Suitable for use with control plug
Modules with current ratings supply the load current by means of wire or terminal connections
Modules can form bigger platforms using the connection clips (see accessories)
For plugging on 5 mm or 10 mm thick busbars
Meets feeder circuit spacings per UL 508

	Description	Rated Thermal Current I_th [A]	Width [mm]	Rails	Pkg. Qty.	Cat. No.
	Standard Busbar Modules with Wires — Short Length With wires for electrical connection, 200 mm tall Top Hat Rails: R = MCS-Specific top hat rail M = Metal top hat rail S = Standard top hat rail	16	45	2R	1	141A-GS45RR16
		16	54			141A-GS54RR16
		25	45			141A-GS45RR25
		25	54			141A-GS54RR25
		45	54			141A-GS54RR45
		45	63			141A-GS63RR45
		125 (For 140-CMN)	90	1M		141A-GS90M125
			180			141A-GS180M125
			270			141A-GS270M125
		125 (For 140M-H, 140U-H, and 140UE-H)§	180	1M		141A-GS180M125H
		125 (For 140M-H, 140U-H, and 140UE-H)§	270	1M		141A-GS270M125H
		Without electrical connections (e.g., for reversing starters)	45	1R		141A-GS45R
			54	1R		141A-GS54R
			72	1S		141A-GS72S
			81	1S		141A-GS81S
	Standard Busbar Modules with Wires — Medium Length With wires for electrical connection 260 mm tall Top Hat Rails: R = MCS-Specific top hat rail S = Standard top hat rail	25	45	1R+1S	1	141A-GM45RS25
		25	54			141A-GM54RS25
		45	54			141A-GM54RS45
		45	63			141A-GM63RS45
		Without electrical connections (e.g., for reversing starters)	45	1S		141A-GM45S
			54			141A-GM54S
			63			141A-GM63S
	Standard Busbar Modules with Terminals — Short Length 200 mm tall With terminals for electrical connection S = Standard top hat rail	25	45	1S	1	141A-FS45S25
		63	54			141A-FS54S63
			63			141A-FS63S63
			72			141A-FS72S63
			81			141A-FS81S63
	Standard Busbar Modules with Terminals — Medium Length 260 mm tall With terminals for electrical connection S = Standard top hat rail	25	45	2S		141A-FM45SS25
		63	54			141A-FM54SS63
			63			141A-FM63SS63
			72			141A-FM72SS63
			81			141A-FM81SS63
	Standard Busbar Module with Terminals on Top 222 mm tall With box terminals on top for electrical connection Wire size 70 mm² (2/0 AWG) Universal mounting capability with sliding pocket nuts (M4)	200	108	—	1	141A-FS108V200T
	Standard Busbar Module with Terminals on Top 320 mm tall With box terminals on top for electrical connection Wire size 120 mm² (250 MCM) Universal mounting capability with sliding pocket nuts (M4)	250	110	—	1	141A-FL110V250T
	Standard Busbar Module with Terminals on Bottom 222 mm tall With box terminals on bottom for electrical connection Wire size 70 mm² (2/0 AWG) Universal mounting capability with sliding pocket nuts (M4)	200	108	—	1	141A-FS108V200B

§ Also requires a Cat. No. 140U-H-DRA DIN Rail adaptor.

Circuit Breaker Mounting Modules for Bulletin 140U and 140M Circuit Breakers

Modules plug or clamp directly onto the busbar
For plugging on 5 mm or 10 mm thick busbars

Description	For Use With	Rated Thermal Current I_th [A]	Width [mm]	Pkg. Qty.	Cat. No.
Standard Busbar Module with Flexible Connecting Wires for electrical connection For use with Bulletin 140U circuit breaker (H-Frame) For use with Bulletin 140M circuit breaker (H-Frame) Meets feeder circuit spacings per UL 508A	140U H-Frame 140M H-Frame (Top feed)	125	90	1	141A-CUH125T
	140U H-Frame 140M H-Frame (Bottom feed)	125	90		141A-CUH125B
Standard Busbar Module with Rear Connecting Studs for electrical connection For use with Bulletin 140U circuit breakers (J-, K- or L-Frame) For use with Bulletin 140M circuit breakers (J-, K- or L-Frame) Meets feeder circuit spacings per UL 508A	140U J-Frame 140M J-Frame (Top or bottom feed)	250	105		141A-CUJ250
	140U K-Frame 140U L-Frame 140M L-Frame (Top or bottom feed)	630	140		141A-CUL600

Panel Mounting Modules

Mounts on (2) 35 mm Top Hat Rails, (1) 75 mm Top Hat Rail, or screw mounts
Suitable for use with control plug
Versions with integrated PE terminal for direct motor connection

Description	Width [mm]	Rails	Pkg. Qty.	Cat. No.	Cat. No. (with PE Terminal)
Mounting Module — Short Length 228 mm tall Top hat rails: R = MCS-specific top hat rail For 2-component starters	45	2R	1	141A-WS45RR	141A-WS45RRP
	54			141A-WS54RR	141A-WS54RRP
Mounting Module — Medium Length 283 mm tall Top hat rails: R = MCS-specific top hat rail For 3-component starters using 193-ED or -EE overload relays	45	2R	1	141A-WM45RR	141A-WM45RRP
	54			141A-WM54RR	141A-WM54RRP
Mounting Module — Long Length 333 mm tall Top hat rails: R = MCS-specific top hat rail For 3-component starters using 193-EC, -ED or -EE overload relays	45	2R	1	141A-WL45RR	141A-WL45RRP
	54			141A-WL54RR	141A-WL54RRP

Busbar Components

	Description	Ampere Rating ¬	Height x Width (mm)	Pkg. Qty.	Cat. No.
	Busbar 800 mm length Tinned copper busbarT	200	12 x 5	3	141A-B125A
		250‡	15 x 5		141A-B155A
		320	20 x 5		141A-B205A
		400‡	25 x 5		141A-B255A
		450	30 x 5		141A-B305A
		360	12 x 10		141A-B1210A
		520	20 x 10		141A-B2010A
		630	30 x 10		141A-B3010A
	Busbar 1600 mm length Tinned copper busbarT	200	12 x 5		141A-B125B
		250‡	15 x 5		141A-B155B
		320	20 x 5		141A-B205B
		400‡	25 x 5		141A-B255B
		450	30 x 5		141A-B305B
		360	12 x 10		141A-B1210B
		520	20 x 10		141A-B2010B
		630	30 x 10		141A-B3010B
	Busbar 2400 mm length Tinned copper busbarT	200	12 x 5	12	141A-B125N
		250‡	15 x 5		141A-B155N
		320	20 x 5		141A-B205N
		400‡	25 x 5		141A-B255N
		450	30 x 5		141A-B305N
		360	12 x 10	6	141A-B1210N
		520	20 x 10		141A-B2010N
		630	30 x 10		141A-B3010N
	Double-T Busbar 2400 mm length Tin-plated copper busbar	960	TT	1	141A-BT11NZ
	Double-T Busbar 2400 mm length Tin-plated copper busbar	1250	TT	1	141A-BT12NZ

¬ Ratings shown are based upon tested conditions at an ambient temperature of 40 °C and a busbar temperature of 70 °C. T Only available in North America. ‡ IEC applications only

Busbar Components, Continued

Description	Busbar [mm]	Pkg. Qty.	Cat. No.
Busbar Support 60 mm pole center spacing 3-pole with inside mounting holes (meets feeder circuit spacings per UL508A)	12, 20, 30 x 5 or 12, 20, 30 x 10	10	141A-TU3
Busbar Support 60 mm pole center spacing 3-pole with inside mounting holes (approved for branch circuit applications per UL508)	12…30 x 5 or 12…30 x 10	10	141A-TR3
Busbar Support 60 mm pole center spacing 4-pole with inside mounting holes			141A-TR4
Busbar Support 1-pole			141A-TR1
Busbar Support with terminals 60 mm pole center spacing Terminals for electrical connections 1.5…16 mm² (#16…6 AWG) 3-pole	12…30 x 5 or 12…30 x 10	10	141A-TR3F16
Double-T Busbar Support For double-T busbars 60 mm spacing (meets feeder circuit spacings per UL 508A)	3-pole	3	141A-T13
	1-pole	10	141A-T11
Busbar End Cover Prevents contact with the busbar ends and prevents busbars from sliding. The end cover can easily be clipped on the busbar support.	3-pole (for use with Cat. Nos. 141A-TU3 or 141A-TR3)	10	141A-TR3E
	4-pole (for use with Cat. No. 141A-TR4)	10	141A-TR4E
	3-Pole (for use with Cat. No. 141A-T13 double T busbar supports)	4	141A-T13E

Busbar Components, Continued

Description	Busbar [mm]	Pkg. Qty.	Cat. No.
Supply Module 3-pole 6…50 mm² (10…1/0 AWG) 54 mm wide (meets feeder circuit spacings per UL 508A)	12…30 x 5 or 12…30 x 10	1	141A-VN370
Supply Module 3-pole 35…120 mm² (2 AWG…250 MCM) 81 mm wide (meets feeder circuit spacings per UL 508A)	12…30 x 5 or 12…30 x 10		141A-VN3120
Supply Module 3-pole 95…185 mm² (3/0 AWG…350 MCM) 135 mm wide			141A-VN3185
Supply Module 3-pole for round conductors 150…300 mm² (300…600 MCM) 135 mm wide			141A-VN3300R
Supply Module 3-pole for flat conductors up to 32 x 20 mm equivalent to 300 mm² (300…600 MCM) round conductor ampacity 135 mm wide			141A-VN3300F
Supply Module 3-Pole (set of 3 terminals) for round conductors 120…300 mm² (250…600 MCM) 153 mm wide (3 single poles of 51 mm each) (meets feeder circuit spacings per UL 508A) Requires Cat. No. 141A-BK180, 141A-BK228 or 141A-BK250 terminal cover		1	141A-VU3300R
Supply Module 3-Pole (set of 3 terminals) for flat conductors up to 32x20 mm equivalent to 300 mm² (600 MCM) 153 mm wide (3 single poles of 51 mm each) (meets feeder circuit spacings per UL 508A) Requires Cat. No. 141A-BK180, 141A-BK228 or 141A-BK250 terminal cover		1	141A-VU3300F
Single Terminals Single terminals for supplying busbars 2.5…16 mm² (#14…6 AWG)	12…30 x 5	25	141A-VS116
	12…30 x 10		141A-VS216
Single Terminals Single terminals for supplying busbars 4…35 mm² (#12…2 AWG)	12…30 x 5		141A-VS135
	12…30 x 10		141A-VS235
Single Terminals Single terminals for supplying busbars 16…70 mm² (#6…2/0 AWG)	12…30 x 5		141A-VS170
	12…30 x 10		141A-VS270
Single Terminals Single terminals for supplying busbars 16…120 mm² ( #6…250 MCM)	12…30 x 10		141A-VS2120
Profile Terminals For double-T busbars To connect with flat busbars and flexible copper busbars	400…800 mm²	3	141A-VS54136F
	500…750 mm²	3	141A-VS55121F
	600…900 mm²	3	141A-VS56421F
	600…1200 mm²	3	141A-VS56436F
	800…1600 mm²	3	141A-VS58136F
	1000…2000 mm²	3	141A-VS510136F

Busbar Components, Continued

Description		Busbar [mm]	Pkg. Qty.	Cat. No.
Terminal Cover Finger protection when busbars supplied with single terminals. Attaches directly to busbars. Height: 180 mm, Width: 54 mm		12…30 x 5 or 12…30 x 10	1	141A-BK1
Terminal Cover Finger protection when bus bars are supplied by Cat. No. 141A-VU3300_ supply module Attaches directly to bus bars Height: 200 mm Depth: 90 mm		Width: 180 mm	1	141A-BK180
		Width: 228 mm	1	141A-BK228
		Width: 250 mm	1	141A-BK250
Terminal Cover Kit Customized terminal cover width using end supports, front shroud and top/bottom shroud Shrouds can be cut to desired width Attaches directly to bus bars		Left and right support	1	141A-BKH
		Front shroud, 1100 mm	1	141A-BKC
		Top/bottom shroud, 1100 mm	1	141A-BKS
Busbar Connector System distance: 5…10 mm		12…20 x 5 or 12…20 x 10	12	141A-VC3A
Busbar Connector System distance: 13…20 mm		20…30 x 5 or 20…30 x 10	6	141A-VC3B
Busbar Connector System distance: 50…60 mm			3	141A-VC3C
Busbar Connector System distance: 100…110 mm			3	141A-VC3D
Double-T Busbar Connectors For connection of double-T busbar racks with same dimensions, Width: 50 mm		Double-T	6	141A-VC5E
Double-T Busbar Connectors For connection of double-T busbar racks with same dimensions, Width: 95 mm			3	141A-VC5F
Double-T Busbar Connectors For connection of double-T busbar racks with same dimensions, Width: 150 mm			3	141A-VC5G
Busbar Shroud Cover 200 x 1100 mm Covers all three busbars		12…30 x 5 or 12…30 x 10	2	141A-BCF1
Busbar Shroud Holder Two required per section of Busbar Shroud Cover			10	141A-BCF1H
Single Pole Busbar Covers Snap-on profile for single busbars for protection against electric shock. Length: 1 m, can be cut to length.		12…30 x 5	10	141A-BS5
		12…30 x 10		141A-BS10
Busbar Cover For double-T busbars Length: 1 m; can be cut to length		—	5	141A-BCT1
Compartment Section Fits to 141A-T13 double-T busbar supports Adjusts the installation depth	48 mm	Double-T	1	141A-BST48
	76 mm		1	141A-BST76
Panel Busbar Shroud Provides isolation between busbar and panel (required for feeder-circuit applications per UL 508A) 230 x 810 mm		All	2	141A-BCR

Busbar Components, Continued

	Description				PQ	Cat. No.
	Busbar Fuse Switch 3-pole switch disconnector with fuses	For fuse links D02, for D01 fuses use reducer	400V AC	63 A¬	1	141A-NF0102
		For 10 x 38 NFC cylindrical fuses	690V AC	32 A	1	141A-NF1038
	Spacer Module Connectable on both sides 9 mm wide				5	141A-NFAD
	Reducer D02 reducer for D01 fuses For 141A-NF0102				20	141A-NFAR
	Class J Busbar Fuse Base For mounting on 10 mm wide and double-T busbars Top or bottom connection For UL Class J fuses			61…100 A	1	141A-NFJ100
				101…200 A	1	141A-NFJ200
				201…400 A	1	141A-NFJ400

¬ The use of spacer module 141A-NFAD is recommended for a continuous load above 35 A.
PQ = Package Quantity

Busbar Components, Continued

	Description				PQ	Cat. No.
	NH Fuse Switch Disconnector Connection bottom or top Size 00 for plugging on 5, 10 mm thick and double-T busbars. Sizes 1 and 2 conversion kit 141A-NFAFR5 is required for plugging on 5 mm thick busbars. Size 3 only for plugging on 10 mm and double-T busbars.	Size 00 200 x 106 mm	M8 70 mm²	160 A	1	141A-NFD160
		Size 1 243 x 184 mm	M10 120 mm²	250 A	1	141A-NFD250
		Size 2 288 x 210 mm	M10 240 mm²	400 A	1	141A-NFD400
		Size 3 300 x 256 mm	M12 240 mm²	630 A	1	141A-NFD630
	Pilot Switch For NH-fuse switch disconnectors Signaling ON/OFF position of lid 250V AC/5 A 30V DC/4 A	Size 00…3			1	141A-NFASNFD
	Wedge Clamp Terminal For NH-fuse switch disconnectors Connection accessories	Size 1 18 x 10 mm	70…150 mm²		1	141A-NFVF1150
		Size 2 21 x 15 mm	120…240 mm²		1	141A-NFVF2240
		Size 3 25 x 20 mm	150…300 mm²		1	141A-NFVF3300
	Conversion Kit For NH-fuse switch disconnector to reduce size 1 and 2 on to 5 mm busbars	Size 1 and 2			1	141A-NFAFR5
	Cover for Cable Lugs For NH fuse switch disconnecor Can be clipped on bottom or top	Size 00			1	141A-NFAC00A
		Size 1			2	141A-NFAC1A
		Size 2			2	141A-NFAC2A
		Size 3			2	141A-NFAC3A

PQ = Package Quantity

Accessories

	Description	Width [mm]	Pkg. Qty.	Cat. No.
	Hat (DIN) Rails — MCS Top Hat Rail (Plastic) Slides onto mounting modules and is then fixed with screws. Has notches for MCS components (prevents movement of components when used with vertical busbar).	45	10	141A-AHR45
		54		141A-AHR54
		63		141A-AHR63
	Hat (DIN) Rails — Standard Top Hat Rail (Plastic) Slides onto mounting modules and is then fixed with screws.	72	10	141A-AHS72
		81		141A-AHS81
	Control Plug Pull-apart terminal block allows fast and simple disconnection of control wiring. Snaps on the support of the mobile device rail. Composed of plug holder, male and female parts.	8 Pole	1	141A-APC8
		10 Pole	1	141A-APC10
		12 Pole	1	141A-APC12
	Control Plug Holder Suitable for use with 8-, 10-, or 12-pole control plugs.			141A-APH
	Spacer module — for ISO busbar modules For 9 mm spacing of mounting modules. Connection clips (Cat. No. 141A-AK) are included for attaching the spacer module to the mounting modules.	200	10	141A-AS9S
Cat. No. 141A-AS9S
	Spacer module — for Standard busbar modules For 9 mm spacing of mounting modules. Connection clips (Cat. No. 141A-AK) are included for attaching the spacer module to the mounting modules.	200		141A-AS9B
Cat. No. 141A-AS9B
	Spacer Module — for Mounting modules For spacing of load feeders by 9 mm e.g. for improved cooling. Including connection clips.	228		141A-AS9W
	Connection Clip For joining base of mounting modules.		50	141A-AK
	Micro Switch N.C. Contact Only for ISO Modules. Automatically drops out the contactor when the DAP (Device Adapter Plate) (carrying the starter) is unplugged from the base of the ISO busbar module.		10	141A-AS

Specifications

Module Data

			Iso Modules		Standard Modules with Wire Connections				Standard Modules with Box Terminals
			141A-S		141A-G				141A-F
Rated current at 60 °C I_th¬		[A]	25	45	16	25	45	125	25	63	200	250
	stranded	[mm²] [AWG]	6 10	10 8	4 12	6 10	10 8	—	4 12	16 6	6…70 10…2/0	35…120 2…250 MCM
	solid	[mm²] [AWG]	—	—	—	—	—	—	4 12	16 6	6…70 10…2/0	35…120 2…250 MCM
		[mm²] [AWG]	—	—	—	—	—	43 1/0	—	—	—	—
Insulation rating of conductors		[°C]	105		105				—	—	—

¬ The admissible load of a complete system depends on the system topography and the application parameters. Factors of influence are ambient temperature, air circulation, busbar load, distribution of busbar load, mix of modules and switchgear components.

Supply Modules

			Supply Modules
			141A-TR3F16	141A-VN370	141A-VN3120	141A-VN3185	141A-VN3300R	141A-VN3300F	141A-VU3300R	141A-VU3300F
	stranded	[mm²] [AWG]	1.5…16 16…6	6…50 10…1/0	35…120 2…250 MCM	95…185 No. 3/0…350 MCM	150…300 300…600 MCM	—	120…300 250…600 MCM	—
	solid	[mm²] [AWG]	1.5…16 16…6	6…50 10…1/0	35…120 2…250 MCM	95…185 No. 3/0…350 MCM	150…300 300…600 MCM	—	120…300 250…600 MCM	—
	Laminated copper	[mm]	—	—	—	—	—	3 x 20 x 1… 10 x 32 x 1	—	3 x 20 x 1… 10 x 32 x 1
Tightening Torque		[N•m/lb•in.]	—	8…10/71…89	12…15/106…133	30/266	30/266	30/266	30/266	30/266

Class J Bus Bar Fuse Bases

			Class J Bus Bar Fuse Bases
			141A-NFJ100	141A-NFJ200	141A-NFJ400
	stranded	[mm²] [AWG]	6…70 10…2/0	10…150 8…300 MCM	16…300 4…600 MCM
	solid	[mm²] [AWG]	6…70 10…2/0	10…150 8…300 MCM	16…300 4…600 MCM
Tightening Torque		[N•m/lb•in.]	14…16/125…142	16…18/142…160	38…40/336…355

Single Terminals

				Single Terminals
				141A-VS116, 141A-VS216	141A-VS135, 141A-VS235	141A-VS170, 141A-VS270
	stranded		[mm²] [AWG]	2.5…16 14…6	4…35 12…2	16…70 6…2/0
	solid		[mm²] [AWG]	2.5…16 14…6	4…35 12…2	16…70 6…2/0
	Laminated copper
	1. Conductor		[mm]	—	5 x 9 x 0.8	5 x 9 x 0.8
	2. Conductor		[mm]	—	—	5 x 9 x 0.8
Clamping area	Width x Height		[mm]	7.5 x 7.5	10.5 x 11	14 x 14
Tightening Torque		[N•m/lb•in.]		4/35	6/53	10/120

Short-Circuit Current Ratings (support spacing at 800 mm)

Cat. No.	Description	Max. Circuit Bkr. Cat. No.	C. B. Rating	SCCR		Max. Class CC, J or T Fuse	SCCR	Max. Class CC, J or T Fuse	SCCR
Cat. No.	Description	Max. Circuit Bkr. Cat. No.	C. B. Rating	480V	600V	Max. Class CC, J or T Fuse	480V	Max. Class CC, J or T Fuse	600V
141A-B125*	12x5 Copper Bus Bar	140U-J6D3-D25	250 A	65 kA	25 kA	400 A	100 kA	400 A	100 kA
141A-B1210*	12x10 Copper Bus Bar	140U-J6D3-D25	250 A	65 kA	25 kA	400 A	100 kA	400 A	100 kA
141A-B205*	20x5 Copper Bus Bar	140U-K6D3-D40	400 A	65 kA	35 kA	500 A	100 kA	400 A	100 kA
141A-B2010*	20x10 Copper Bus Bar	140U-K6D3-D40	400 A	65 kA	35 kA	500 A	100 kA	400 A	100 kA
141A-B305*	30x5 Copper Bus Bar	140U-K6D3-D40	400 A	65 kA	35 kA	500 A	100 kA	500 A	100 kA
141A-B305*	30x5 Copper Bus Bar	140U-L6D3-D60	600 A	—	35kA	500 A	100 kA	500 A	100 kA
141A-B3010*	30x10 Copper Bus Bar	140U-K6D3-D40	400 A	65 kA	35 kA	600 A	100 kA	600 A	100 kA
141A-B3010*	30x10 Copper Bus Bar	140U-L6D3-D60	600 A	50 kA	25 kA	600 A	100 kA	600 A	100 kA
141A-BT1*NZ	TT Copper Bus Bar	140U-M6D3-D80	800 A	65 kA	30 kA	800 A Class T	100 kA	600 A	100 kA
141A-TU3	Bus Bar Support	140U-K6D3-D40	400 A	65 kA	35 kA	600 A	100 kA	600 A	100 kA
141A-TU3	Bus Bar Support	140U-L6D3-D60	600 A	50 kA	35kA	600 A	100 kA	600 A	100 kA
141A-T13	Bus Bar Support	140U-M6D3-D80	800 A	65 kA	30 kA	800 A Class T	100 kA	600 A	100 kA
141A-TR3E	BB Support End Cover	140U-K6D3-D40	400 A	65 kA	35 kA	600 A	100 kA	600 A	100 kA
141A-TR3E	BB Support End Cover	140U-L6D3-D60	600 A	50 kA	35kA	600 A	100 kA	600 A	100 kA
141A-T13E	BB Support End Cover	140U-M6D3-D80	800 A	65 kA	30 kA	800 A Class T	100 kA	600 A	100 kA
141A-VN370	Supply Module	140U-J6D3-D26	250 A	65 kA	25 kA	400 A	100 kA	400 A	100 kA
141A-VN3120	Supply Module	140U-K6D3-D40	400 A	65 kA	35 kA	600 A	100 kA	600 A	100 kA
141A-VN3120	Supply Module	140U-L6D3-D60	600 A	50 kA	35kA	600 A	100 kA	600 A	100 kA
141A-VN3185	Supply Module	140U-K6D3-D40	400 A	65 kA	35 kA	500 A	100 kA	300 A	100 kA
141A-VN3300R	Supply Module	140U-K6D3-D40	400 A	65 kA	35 kA	500 A	100 kA	300 A	100 kA
141A-VU3300R	Supply Module	140U-K6D3-D40	400 A	65 kA	35 kA	500 A	100 kA	300 A	100 kA
141A-VS54136F	Profile Terminals	140U-M6D3-D80	800 A	65 kA	30 kA	800 A Class T	100 kA	600 A	100 kA
141A-CUH125B	Circuit Breaker Module	140U-H6C3-D12	125 A	65 kA	25 kA	N/A	N/A	N/A	N/A
141A-CUH125T	Circuit Breaker Module	140U-H6C3-D12	125 A	65 kA	25 kA	N/A	N/A	N/A	N/A
141A-CUJ250	Circuit Breaker Module	140U-J6D3-D25	250 A	65 kA	25 kA	N/A	N/A	N/A	N/A
141A-CUL600	Circuit Breaker Module	140U-K6D3-D40	400 A	65 kA	35 kA	N/A	N/A	N/A	N/A
141A-CUL600	Circuit Breaker Module	140U-L6D3-D60	600 A	50 kA	25 kA	N/A	N/A	N/A	N/A
141A-SS25 141A-SM25 141A-GS25 141A-GM25 141A-FS25 141A-FM25	Bus Bar Module	140M-C2E-B16	1.6 A	65 kA	47kA	30 A	100 kA	30 A	100 kA
		140M-C2E-C10	10 A	65 kA	30 kA	30 A	100 kA	30 A	100 kA
		140M-C2E-C25	25 A	30 kA	30 kA	30 A	100 kA	30 A	100 kA
		140M-D8E-C25	25 A	65 kA	30 kA	30 A	100 kA	30 A	100 kA
141A-SS45 141A-SM45 141A-GS45 141A-GM45	Bus Bar Module	140M-F8E-C32	32A	65 kA	30 kA	—	—	—	—
141A-SS45 141A-SM45 141A-GS45 141A-GM45	Bus Bar Module	140M-F8E-C45	45 A	65 kA	18kA	—	—	—	—

Busbars (required quality)

Material		E-CU blank or tinned
Busbar widths 5 or 10 mm thick	[mm]	12, 15, 20, 25, 30
Tolerance of thickness	[mm]	+0.1/-0.3
Corner radius	[mm]	0.5
Tolerance of center spacing	[mm]	60 +0.5/-0.5
Standard		DIN 46433

General Data

Main Circuits

Rated insulation voltage U_i
Acc. to IEC, EN	[V]	690
Acc. to UL, NEMA, CSA, EEMAC	[V]	600
Rated impulse withstand voltage U_imp	[kV]	8
Rated frequency	[Hz]	50…60
Pollution degree		3
Ambient temperature
Operation	[°C]	-25…+60
Transport and storage	[°C]	-50…+80

Protection class - Modules and busbars	IP00
- Modules and busbars mounted on plate, connected conductors and usage of busbar covers	IP20
- Iso-Modules with device adapter plate removed, from front	IP20 B (finger proof)
Standards and Norms	IEC/EN 60439-1
Certifications	CE, cULus Recognized

Control Circuits

Control plugs
Rated insulation voltage U_i
Acc. to IEC, EN	[V]	250
Acc. to UL, NEMA, CSA, EEMAC	[V]	300
Rated impulse withstand voltage U_imp	[kV]	4
Rated current at 40 °C ambient temperature I_th	[A]	12

Micro switch
Rated insulation voltage U_i
Acc. to IEC, EN	[V]	250
Acc. to UL, NEMA, CSA, EEMAC	[V]	300
Rated current		Suitable for switching contactors 100-C AC-coil-voltage £ 250 V DC-coil-voltage £ 120 V

Weight [g]

MCS Iso Busbar Module	[g]
141A-SS45RR25	381
141A-SS54RR25	396
141A-SS54RR45	472
141A-SS63RR45	480
141A-SS45R	279
141A-SS54R	305
141A-SM45RS25	402
141A-SM54RS25	418
141A-SM54RS45	494
141A-SM63RS45	502
141A-SM45S	300
141A-SM54S	327
141A-SM63S	405

MCS Standard Busbar Module	[g]
141A-GS45RR25	302
141A-GS54RR25	347
141A-GS54RR45	358
141A-GS63RR45	379
141A-GS90M125	781
141A-GS180M125	1021
141A-GS270M125	1271
141A-GS45R	200
141A-GS54R	226
141A-GS72S	268
141A-GS81S	289
141A-GM45RS25	313
141A-GM54RS25	368
141A-GM54RS45	379
141A-GM63RS45	400
141A-GM45S	211
141A-GM54S	277
141A-GM63S	298
141A-FS45S25	272
141A-FS54S63	328
141A-FS63S63	349
141A-FS72S63	387
141A-FS81S63	408
141A-FM45SS25	293
141A-FM54SS63	349
141A-FM63SS63	370
141A-FM72SS63	408
141A-FM81SS63	429

MCS Standard Busbar Module >100 A	[g]
141A-FS108V200T	1000
141A-FL110V250T	1200
141A-FS108V200B	1000

MCS Mounting Module	[g]
141A-WS45RR	163
141A-WS54RR	204
141A-WM45RR	189
141A-WM54RR	211
141A-WL45RR	211
141A-WL54RR	222
141A-WS45RRP	180
141A-WS54RRP	221
141A-WM45RRP	212
141A-WM54RRP	234
141A-WL45RRP	240
141A-WL54RRP	251

Busbar Components	[g]	Busbar Components	[g]
141A-TR3	203	141A-BCR	800
141A-TR4	256	141A-BST48	700
141A-TR1	59	141A-BST76	1050
141A-TR3E	21	141A-BCT1	380
141A-TR4E	28	141A-NF0102	759
141A-TR3F16	285	141A-NF1038	760
141A-TU3	127	141A-NFASNF	7
141A-T11	158	141A-NFAD	61
141A-T13	591	141A-NFAR	1
141A-T13E	20	141A-NFJ100	3280
141A-VN370	360	141A-NFJ200	4500
141A-VN3120	485	141A-NFJ400	6900
141A-VN3185	1140	141A-NFD160	1300
141A-VN3300R	1540	141A-NFD250	3760
141A-VN3300F	1619	141A-NFD400	5500
141A-VU3300R	1550	141A-NFD630	7840
141A-VU3300F	1325	141A-NFASNFD	11
141A-VS116	21	141A-NFVF1150	116
141A-VS216	23	141A-NFVF2240	199
141A-VS135	46	141A-NFVF3300	247
141A-VS235	47	141A-NFAFR5	65
141A-VS170	71	141A-NFAC00A	124
141A-VS270	74	141A-NFAC1A	107
141A-VS2120	109	141A-NFAC2A	109
141A-VS54136F	670	141A-NFAC3A	156
141A-VS55121F	705	141A-BK180	395
141A-VS56421F	840	141A-BK228	425
141A-VS56436F	859	141A-BK250	440
141A-VS58136F	1011	141A-BKH	90
141A-VS510136F	1137	141A-BKC	420
141A-BK1	144	141A-BKS	150
141A-VC3A	185
141A-VC3B	251
141A-VC3C	565
141A-VC3D	870
141A-VC5E	494
141A-VC5F	943
141A-VC5G	1461
141A-BCF1	750
141A-BCF1H	40
141A-BS5	87
141A-BS10	101

Accessories	[g]
141A-AHR45	15
141A-AHR54	16
141A-AHR63	16
141A-AHS72	17
141A-AHS81	18
141A-APC8	29
141A-APC10	35
141A-APC12	40
141A-APH	5
141A-AS9B	20
141A-AS9W	20
141A-AS9S	38
141A-AK	1
141A-AS	75

Approximate Dimensions

Dimensions are in millimeters. Dimensions are not intended for manufacturing purposes.

Cat. No. 141A-S…ISO Busbar Modules

Cat. No.	A	B	C	D	E
141A-SS45RR25	200	45	65	162.5	73
141A-SS54RR25	200	54	65	162.5	73
141A-SS54RR45	200	54	65	170	95
141A-SS63RR45	200	63	65	170	95
141A-SS45R	200	45	—	162.5	—
141A-SS54R	200	54	—	170	—
141A-SM45RS25	260	45	65	170	73
141A-SM54RS25	260	54	65	170	73
141A-SM54RS45	260	54	65	170	95
141A-SM63RS45	260	63	65	170	95
141A-SM45S	260	45	—	170	—
141A-SM54S	260	54	—	170	—
141A-SM63S	260	63	—	170	—

NOTE:
1. FREE SPACE REQUIRED TO
GET THE DEVICE ADAPTER
PLATE IN PARKING POSITION.

Dimensions are in millimeters (inches). Dimensions are not intended for manufacturing purposes.

Cat. No. 141A-GS, Standard Busbar Modules with Wires

Cat. No.	PER DETAIL	A	B	C	D	E
141A-GS45RR16	A	200	45	65	162.5	73
141A-GS54RR16	A	200	54	65	162.5	73
141A-GS45RR25	A	200	45	65	162.5	73
141A-GS54RR25	A	200	54	65	162.5	73
141A-GS54RR45	A	200	54	65	170	95
141A-GS63RR45	A	200	63	65	170	95
141A-GS45R	A	200	45	—	162.5	—
141A-GS54R	A	200	54	—	170	—
141A-GS72S	A	200	72	105	—	—
141A-GS81S	A	200	81	105	—	—
141A-GM45RS25	A	260	45	65	170	73
141A-GM54RS25	A	260	54	65	170	73
141A-GM54RS45	A	260	54	65	170	95
141A-GM63RS45	A	260	63	65	170	95
141A-GM45S	A	260	45	—	170	—
141A-GM54S	A	260	54	—	170	—
141A-GM63S	A	260	63	—	170	—

NOTE:
1. FREE SPACE REQUIRED TO PLUG/UNPLUG MODULE INTO THE BUSBARS.

Click to enlarge - 141A-GSxxM125 V3_block

Dimensions are in millimeters (inches). Dimensions are not intended for manufacturing purposes.

Cat. No. 141A-F… Standard Busbar Modules with Terminals

Cat. No.	A	B	C	D	WIRE SIZES
Cat. No.	A	B	C	D	mm²	AWG
141A-FS45S25	200	45	65	—	6	#10
141A-FS54S63	200	54	65	—	16	#6
141A-FS63S63	200	63	65	—	16	#6
141A-FS72S63	200	72	65	—	16	#6
141A-FS81S63	200	81	65	—	16	#6
141A-FM45SS25	260	45	65	170	6	#10
141A-FM54SS63	260	54	65	170	16	#6
141A-FM63SS63	260	63	65	170	16	#6
141A-FM72SS63	260	72	65	170	16	#6
141A-FM81SS63	260	81	65	170	16	#6

NOTE:
1. FREE SPACE REQUIRED TO
PLUG/UNPLUG MODULE
INTO THE BUSBARS.

Dimensions are in millimeters. Dimensions are not intended for manufacturing purposes.

Cat. No. 141A-W… Panel Mount Modules

Cat. No.	A	B	C	D	E	F
141A-WS45RR(P)	228	45	69	166.5	210	35
141A-WS54RR(P)	228	54	69	174	210	40
141A-WM45RR(P)	283	45	69	166.5	265	35
141A-WM54RR(P)	283	54	69	174	265	40
141A-WL45RR(P)	333	45	69	166.5	315	35
141A-WL54RR(P)	333	54	69	174	315	40

Dimensions are in millimeters. Dimensions are not intended for manufacturing purposes.

Supply Modules

Cat. Nos. 141A-VN370 and 141A-VN3120

Dimensions are in millimeters. Dimensions are not intended for manufacturing purposes.

Supply Modules, Continued

Cat. Nos. 141A-VN3185, -VN3300R, and -VN3300F

Dimensions are in millimeters. Dimensions are not intended for manufacturing purposes.

Supply Modules, Continued

Cat. Nos. 141A-VU3300R and -VU3300F

Click to enlarge - 141A-VU3300F (01538016)

Dimensions are in millimeters. Dimensions are not intended for manufacturing purposes.

Standard Busbar Modules — Universal Adapters

Cat. No. 141A-FS108V200B

Cat. No. 141A-FS108V200T

Cat. No. 141A-FL110V250T

Dimensions are in millimeters. Dimensions are not intended for manufacturing purposes.

Busbars

Cat. No.	A	B	C	Cat. No.	A	B	C
141A-B3010A	30	10	800	141A-B255B	25	5	1600
141A-B2010A	20	10	800	141A-B205B	20	5	1600
141A-B1210A	12	10	800	141A-B155B	15	5	1600
141A-B305A	30	5	800	141A-B125B	12	5	1600
141A-B255A	25	5	800	141A-B3010N	30	10	2400
141A-B205A	20	5	800	141A-B2010N	20	10	2400
141A-B155A	15	5	800	141A-B1210N	12	10	2400
141A-B125A	12	5	800	141A-B305N	30	5	2400
141A-B3010B	30	10	1600	141A-B255N	25	5	2400
141A-B2010B	20	10	1600	141A-B205N	20	5	2400
141A-B1210B	12	10	1600	141A-B155N	15	5	2400
141A-B305B	30	5	1600	141A-B125N	12	5	2400
				141A-BT11NZ	30	40	2400
				141A-BT12NZ	30	40	2400

Cat. Nos. 141A-BCF1, 141A-BCF1H Busbar Cover and Cover Holder

Cat. No. 141A-BCF1
Cat. No. 141A-BCF1H

Dimensions are in millimeters. Dimensions are not intended for manufacturing purposes.

Cat. No. 141A-TR…Busbar Supports and End Covers

Dimensions are in millimeters. Dimensions are not intended for manufacturing purposes.

Cat. No. 141A-CUJ250

Dimensions are in millimeters. Dimensions are not intended for manufacturing purposes.

Cat. No. 141A-CUL600

Dimensions are in millimeters. Dimensions are not intended for manufacturing purposes.

Cat. No. 141A-NFJ…

Cat. No.	a	b	c	d	e	f	l	p	q	x
141A-NFJ100	184	214.5	103	83	221	20	101	104.5	110.5	57
141A-NFJ200	210	255	117	97	268	20	118	128	124.5	65
141A-NFJ400	256	267	132.5	112.5	285	20	121.5	136.5	139	81