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
  
• IEC 157-1
  
• KEMA-KEUR
  

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

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]	Adjustment Range [A]		Protection Type	Cat. No.
	Thermal Trip Ir = 0.5…1.0 x In	Magnetic Trip Im = 2…8 x Ir
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. Select proper rating plug to cover thermal trip requirement.

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]T		Cat. No.	Breaking Capacity/ Interrupting Rating [kA]T		Cat. No.	Breaking Capacity/ Interrupting Rating [kA]T		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
T Full ratings are found in the breaker frames 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]T		Cat. No.	Breaking Capacity/ Interrupting Rating [kA]T		Cat. No.	Breaking Capacity/ Interrupting Rating [kA]T		Cat. No.
			400V	480V		400V	480V		400V	480V
400	100…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
¬ Select proper rating plug to cover thermal trip requirement.
T Full ratings are found in the breaker frames 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

	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) #12…2/0 AWG or (3) 4…67 mm2	3	140U-K-MTL3A
		(6) #14…2 AWG or (6) 2.5…33 mm2	3	140U-K-MTL6A