Molded Case Circuit Breakers

Catalogs > Industrial Controls Catalog > Motor Control, IEC > Molded Case Circuit Breakers > Bulletin 140U K-Frame

Bulletin 140U K-Frame

Product Selection — 400 A, K-Frame

• UL 489
  
• CSA 22.2, No. 5
  

Note: Terminal lugs must be ordered separately. See Optional Terminal Lug Kits

Breaker Frames

Rated Current In [A]	Breaking Capacity (50 Hz) Icu /Ics [kA]								Interrupting Rating (60 Hz) [kA]			Cat. No.
	220…240V		380…415V		500V		690V		240V	480V	600V
400	65	65	40	40	30	30	10	5	65	35	25	140U-K3X3
	100	100	35	35	50	38	13	6	100	65	35	140U-K6X3
	200	200	100	100	65	49	18	9	200	100	65	§	140U-K0X3
§ Current limiting.

Trip Units and Rating Plugs

Thermal-Magnetic
Rated Current In [A]	Adjustment Range [A]		Cat. No.
	Thermal Trip [A] Ir = In (Fixed)	Magnetic Trip Im = 5…10 x In
100	100	500…1000	140U-KTD3-D10
125	125	625…1250	140U-KTD3-D12
150	150	750…1500	140U-KTD3-D15
175	175	895…1750	140U-KTD3-D17
200	200	1000…2000	140U-KTD3-D20
225	225	1125…2250	140U-KTD3-D22
250	250	1250…2500	140U-KTD3-D25
300	300	1500…3000	140U-KTD3-D30
350	350	1750…3500	140U-KTD3-D35
400	400	2000…4000	140U-KTD3-D40

Electronic
Rated Current In [A]	Thermal Trip‡  Ir = 0.5…1.0 x In	Magnetic Trip Im = 2…8 x Ir	Protection Type	Cat. No.
400	200…400	400…3200	LS	140U-KTL3-D40
			LSI	140U-KTH3-D40
			LSG	140U-KTG3-D40
			LSIG	140U-KTI3-D40
‡ Electronic trip units require the use of a rating plug. Thermal trip rating is determined by the rating plug selection and is not adjustable.

Rating Plugs
Thermal Trip In [A]	Cat. No.	Thermal Trip In [A]	Cat. No.
200	140U-KRP3-D20	300	140U-KRP3-D30
225	140U-KRP3-D22	350	140U-KRP3-D35
250	140U-KRP3-D25	400	140U-KRP3-D40

Assembled Circuit Breakers, Thermal-Magnetic Trip Units

Rated Current In [A]	Breaking Capacity/ Interrupting Rating [kA]§		Cat. No.	Breaking Capacity/ Interrupting Rating [kA]§		Cat. No.	Breaking Capacity/ Interrupting Rating [kA]§		Cat. No.
	400V	480V		400V	480V		400V	480V
100	40	35	140U-K3D3-D10	65	65	140U-K6D3-D10	100	100	140U-K0D3-D10
125	40	35	140U-K3D3-D12	65	65	140U-K6D3-D12	100	100	140U-K0D3-D12
150	40	35	140U-K3D3-D15	65	65	140U-K6D3-D15	100	100	140U-K0D3-D15
175	40	35	140U-K3D3-D17	65	65	140U-K6D3-D17	100	100	140U-K0D3-D17
200	40	35	140U-K3D3-D20	65	65	140U-K6D3-D20	100	100	140U-K0D3-D20
225	40	35	140U-K3D3-D22	65	65	140U-K6D3-D22	100	100	140U-K0D3-D22
250	40	35	140U-K3D3-D25	65	65	140U-K6D3-D25	100	100	140U-K0D3-D25
300	40	35	140U-K3D3-D30	65	65	140U-K6D3-D30	100	100	140U-K0D3-D30
350	40	35	140U-K3D3-D35	65	65	140U-K6D3-D35	100	100	140U-K0D3-D35
400	40	35	140U-K3D3-D40	65	65	140U-K6D3-D40	100	100	140U-K0D3-D40
Assembled circuit breakers can be created by adding a trip unit and rating plugs (electronic only) to a circuit breaker frame. Example: Cat. No. 140U-K3X3 + 140U-KTL3-D40 + 140U-KRP3-D35
§ Interrupting ratings shown are for 400V and 480V, respectively. The complete range of ratings can be found in the frame rating table on Breaker Frames.

Assembled Circuit Breakers, Electronic Trip Units

Rated Current In [A]	Thermal Trip⋆  Ir = 0.5…1.0 x In	Protection Type	Breaking Capacity/ Interrupting Rating [kA]‡		Cat. No.	Breaking Capacity/ Interrupting Rating [kA]‡		Cat. No.	Breaking Capacity/ Interrupting Rating [kA]‡		Cat. No.
			400V	480V		400V	480V		400V	480V
400	200…400	LS	40	35	140U-K3L3-D40	65	65	140U-K6L3-D40	100	100	140U-K0L3-D40
		LSI	40	35	140U-K3H3-D40	65	65	140U-K6H3-D40	100	100	140U-K0H3-D40
		LSG	40	35	140U-K3G3-D40	65	65	140U-K6G3-D40	100	100	140U-K0G3-D40
⋆ Electronic trip units require the use of a rating plug. Thermal trip rating is determined by the rating plug selection and is not adjustable.
‡ Interrupting ratings shown are for 400V and 480V, respectively. The complete range of ratings can be found in the frame rating table on Breaker Frames

Molded Case Switch — UL 489

Rated Current In [A]	Magnetic Trip 10 x In	Breaking Capacity (50 Hz) Icu /Ics [kA]								Interrupting Rating (60 Hz) [kA]			Cat. No.
		220…240V		380…415V		500V		690V		240V	480V	600V
400	4000	100	100	65	65	50	38	13	6	100	65	35	140U-K6S3-D40

Optional Terminal Lug Kits

Pictures shown are representative. Actual product may differ from product shown.

	Description		Pkg. Quantity	Cat. No.
	Terminal Lugs	Aluminum lug, Al or Cu wire (1) 3…350 MCM or (1) 30…185 mm2	1	140U-K-TLA1A
		Aluminum lug, Al or Cu wire (1) 250…500 MCM or (1) 120…240 mm2		140U-K-TLA1
		Aluminum lug, Al or Cu wire (2) 3/0…250 MCM or (2) 95…120 mm2	3 (includes shield)	140U-K-TLA2
	Terminal Lugs	Copper lug, Cu wire only (1) 3…350 MCM or (1) 30…185 mm2	1	140U-K-TLC1A
		Copper lug, Cu wire only (1) 250…500 MCM or (1) 120…240 mm2		140U-K-TLC1
		Copper lug, Cu wire only (2) 3/0…250 MCM or (2) 95…120 mm2	3 (includes shield)	140U-K-TLC2
		Aluminum lug, Al or Cu wire (2) 2/0…250 MCM or (1) 2/0…500 MCM, (2) 70…120 mm2 or (1) 70…240 mm2	3 (includes shield)	140U-K-TLA2A
		Aluminum lug, Al or Cu wire (1) 500…750 MCM or (1) 300…400 mm2		140U-K-TLA1B
	Terminal Lugs	Copper lug, Cu wire only (1) 500…750 MCM or (1) 300…400 mm2	3 (includes shield)	140U-K-TLC1B
	Multi-Tap Terminal Lug Kit — with IP20 terminal cover	(3) #14…2/0 AWG or (3) 4…67 mm2	3	140U-K-MTL3A
		(6) #14…3 AWG or (6) 2.5…33 mm2	3	140U-K-MTL6A