High-Quality SJKM5 Industrial MCCB Breaker for Short-Circuit Protection Manufacturers, Manufacturer

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High-Quality SJKM5 Industrial MCCB Breaker for Short-Circuit Protection Manufacturers, Manufacturer

SJKM5 Molded Case Circuit Breaker (MCCB) delivers robust 3P/4P protection for 100A-630A applications, featuring 800V insulation and 8kV impulse withstand. This IEC 60947-2 certified MCCB offers 1000V breaking capacity (AC 50/60Hz) with Icu/Ics protection levels. The Molded Case Circuit Breaker operates reliably in pollution degree 3 environments at 40°C, meeting NEMA AB1 standards. Its thermal-magnetic trip system ensures precise overload and short-circuit protection for 380V-690V industrial systems. The SJKM5 MCCB combines isolation capability with durable construction, making it ideal for power distribution panels, manufacturing plants, and commercial installations requiring high-performance circuit protection.

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Product Description

Type Designation

1	Manufacturer Code
2	Molded Case Circuit Breaker Code
3	Design Code
4	Frame Size
5	Short-Circuit Breaking Capacity Level 4
6	Operation method 3
7	Number of Poles 2
8	Trip Unit Method & File Code
9	Function Code 1

Product Display

Characteristic

Rated insulation voltage (V)	UI		800
Rated impulse voltage (kV)	Uimp		8
Rated working voltage (V)	Ue	AC 50/60 Hz	690
Applicable for Isolation		IEC/EN 60947-2	YES
Application Category			A
Pollution Degree		IEC 60664-1	3

Technical Parameters

Circuit Breaker
Breaking Capacity Level
Electrical performance complies with IEC 60947-2
Rated current (A)	In	40℃
Pole number
Limit breaking capacity (kA rms)
	Icu	AC 50/60 Hz	220/240V 380/415V 660/690V 800V 1000V
Service breaking capacity (kA rms)
Mechanical electrical	Ics	%Icu
			415V	In
			440V	In/2
				In
			690V	In/2
				In
Electrical performance complies with Nema AB1
Breaking capacity (kA rms)		AC 50/60 Hz	240V 480V 600V 800V 1000V
Protection and measurement
Short-circuit protection		Magnetic protection
Overload/short-circuit protection		Thermal magnetic
		Electronic
		Electronic with neutral protection (off-0.5-1-OSN)
		With earth fault protection
		With zone selective interlock (ZS1)
Display / l,U,P,F,E measurement / fault current measurement
Options		Cabinet door display unit
		Operation management
		Counter
		Historical logs and alarms
		Measurement communication
		Switch status/control communication
Leakage protection		Via Vig leakage protection module
		Via Vigirex leakage relay
Installation/connection
Dimensions and weight
Dimensions (mm) W×H×D		Fixed front connection	2/3P 4P
Weight (kg)		Fixed front connection	2/3P 4P
Connection
Connection terminals		Pole spacing	With/without terminal expander
Copper or aluminum cables		Cross-sectional area	mm²

SJKM5-100					SJKM5-160					SJKM5-250					SJKM5-400					SJKM5-630
F	N	H	S	L	N	F	H	S	L	N	F	H	S	L	N	F	H	S	L	N	F	H	S	L

100					160					250					400					630
3,4					3,4					3,4					3,4					3,4

85 85 100 120 150 36 50 70 100 150 35 42 65 90 130 25 30 50 65 70 8 10 10 15 35 30 15					85 85 100 120 150 36 50 70 100 150 35 42 65 90 130 25 30 50 65 70 8 10 10 15 35 30 15					85 85 100 120 150 36 50 70 100 150 35 42 65 90 130 25 30 50 65 70 8 10 10 15 35 30 15					85 85 100 120 150 36 50 70 100 150 35 42 65 90 130 25 30 50 65 70 8 10 10 15 35 30 25					85 85 100 120 150 36 50 70 100 150 35 42 65 90 130 25 30 50 65 70 8 10 10 15 35 30 25

100%					100%					100%					100%					100%
50000					40000					20000					15000					15000
30000					20000					10000					7000					7000
50000 30000					40000 20000					20000 10000					12000 6000					8000 4000
20000 10000					15000 7500					10000 5000					6000 3000					6000 2000

85 90 100 120 150 35 50 65 90 130 8 20 35 40 35 25 12					85 90 100 120 150 35 50 65 90 130 8 20 35 40 35 25 12					85 90 100 120 150 35 50 65 90 130 8 20 35 40 35 25 12					85 90 100 120 150 35 50 65 90 130 8 20 35 40 35 30 15					85 90 100 120 150 35 50 65 90 130 8 20 35 40 35 30 15

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105×161×86 / 140×161×86					105×161×86 / 140×161×86					105×161×86 / 140×161×86					140×255×110 / 185×255×110					140×255×110 / 185×255×110
2.05 / 2.4					2.2 / 2.6					2.4 / 2.8					6.05 / 7.9					6.2 / 8.13

35/45mm					35/45mm					35/45mm					45/52.5mm 45/70mm					45/52.5mm 45/70mm
300					300					300					4×240					4×240

Ordering Instructions

Order Specifications Required from Customers:

a) Product Name: Model Number, Rated Current;
b) Rated Current, Number of Poles;
c) Minimum Order Quantity.

Example:
Order SJKM5-100 3-pole circuit breaker, type F, rated current 100A, quantity 1000 units.
Should be written as: SJKM5-100F/3P, 100A, 1000 units.

Frequently Asked Questions (FAQ)

Q: What standards does the SJKM5 series circuit breaker comply with?

The SJKM5 series complies with international standards including IEC/EN 60947-2, NEMA AB1, and IEC 60664-1 for pollution degree classification.

Q: What frame sizes and ratings are available for this series?

The product family offers multiple frame sizes including SJKM5-100, SJKM5-160, SJKM5-250, SJKM5-400, and SJKM5-630, supporting continuous current ratings from 100A up to 630A.

Q: What are the pole configuration options?

The SJKM5 series is available in both 3-pole (3P) and 4-pole (4P) configurations to meet diverse three-phase industrial distribution requirements.

Q: What types of protection units are supported?

This series supports thermal-magnetic trip units, electronic trip units, electronic trip units with neutral protection (off-0.5-1-OSN), earth fault protection, and zone selective interlocking (ZS1).

Q: Can leakage protection be added to the SJKM5 series?

Yes, leakage protection functions can be integrated using either an external Vig leakage protection module or via a Vigirex leakage relay.

Q: How do I correctly specify an order model?

State the product model, breaking capacity type, number of poles, rated current, and required quantity. For example: "SJKM5-100F/3P, 100A, 1000 units".

High-Quality SJKM5 Industrial MCCB Breaker for Short-Circuit Protection Manufacturers, Manufacturer

Product Description

Type Designation

Product Display

Characteristic

Technical Parameters

Ordering Instructions

Frequently Asked Questions (FAQ)

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