ABB S400 S400M Miniature Circuit Breaker, 1-Pole, 63 A, Type B, Type C, Type D, Type K, 400 V AC, 250 V DC, 10 kA

RS Stock No.:: 177-658
Mfr. Part No.:: 2CCS571001R0634 S401M-C63
Brand:: ABB

ABB S400 S400M Miniature Circuit Breaker, 1-Pole, 63 A, Type B, Type C, Type D, Type K, 400 V AC, 250 V DC, 10 kA

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Subtotal (1 unit)*

£55.49

(exc. VAT)

£66.59

(inc. VAT)

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Shipping from 26 February 2026

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Units	Per unit
1 +	£55.49

*price indicative

RS Stock No.:: 177-658
Mfr. Part No.:: 2CCS571001R0634 S401M-C63
Brand:: ABB

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	ABB
	Product Type	Miniature Circuit Breaker
	Number of Poles	1
	Current Rating	63 A
	Tripping Characteristics	Type B, Type C, Type D, Type K
	Rated AC Voltage	400 V
	Rated DC Voltage	250 V
	Breaking Capacity	10kA
	Mount Type	DIN Rail
	Range	S400
	Series	S400M
	Depth	75mm
	Standards/Approvals	EN 60898-1, IEC/EN 60947-2
	Width	18 mm
	Reset Actuator Type	Toggle Switch

	Select all
	Brand ABB
	Product Type Miniature Circuit Breaker
	Number of Poles 1
	Current Rating 63 A
	Tripping Characteristics Type B, Type C, Type D, Type K
	Rated AC Voltage 400 V
	Rated DC Voltage 250 V
	Breaking Capacity 10kA
	Mount Type DIN Rail
	Range S400
	Series S400M
	Depth 75mm
	Standards/Approvals EN 60898-1, IEC/EN 60947-2
	Width 18 mm
	Reset Actuator Type Toggle Switch

COO (Country of Origin):: CH

ABB S400M Series MCB, 1 Pole, 63A Current Rating - S401M-C63

This miniature circuit breaker provides efficient protection for electrical circuits. The 1-pole circuit breaker operates at a current rating of 63A and withstands breaking capacities of up to 10kA. With a compact width of 18mm and a length of 91mm, it ensures effective circuit protection.

Features & Benefits

• Uses thermal and electromechanical mechanisms for dual protection

• Achieves effective overload protection through delayed thermal tripping

• Designed for short circuit protection with electromechanical tripping

• Complies with IEC/EN standards for enhanced safety assurance

Applications

• Suitable for critical power applications requiring dependable protection

• Enhances automation systems with robust electrical safety measures

• Utilised in control panels and distribution boards for effective management

Will it mount easily on a standard DIN rail?

Yes, it has a DIN rail mounting style for straightforward installation.

Can it handle higher voltages than standard units?

Yes, it operates at rated AC voltages of 230V and 400V.

Does it comply with international safety standards?

Yes, it adheres to IEC/EN standards for enhanced safety and reliability.