ABB SmiSSline, S400 S400M Miniature Circuit Breaker, 1-Pole, 13 A, Type K, Type C, Type B, Type D, 400 V AC, 250 V DC,

RS Stock No.:: 176-728
Mfr. Part No.:: 2CCS571001R0135 S401M-B13
Brand:: ABB

ABB SmiSSline, S400 S400M Miniature Circuit Breaker, 1-Pole, 13 A, Type K, Type C, Type B, Type D, 400 V AC, 250 V DC,

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Subtotal (1 unit)*

£20.42

(exc. VAT)

£24.50

(inc. VAT)

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In Stock

Plus 3 unit(s) shipping from 09 February 2026

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Units	Per unit
1 +	£20.42

*price indicative

RS Stock No.:: 176-728
Mfr. Part No.:: 2CCS571001R0135 S401M-B13
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	13 A
	Tripping Characteristics	Type K, Type C, Type B, Type D
	Rated AC Voltage	400 V
	Rated DC Voltage	250 V
	Mount Type	DIN Rail
	Breaking Capacity	50kA
	Range	SmiSSline, S400
	Series	S400M
	Depth	75mm
	Standards/Approvals	IEC/EN 60947-1, IEC/EN 60947-2, EN 60898-1
	Width	18 mm
	Reset Actuator Type	Toggle Switch

	Select all
	Brand ABB
	Product Type Miniature Circuit Breaker
	Number of Poles 1
	Current Rating 13 A
	Tripping Characteristics Type K, Type C, Type B, Type D
	Rated AC Voltage 400 V
	Rated DC Voltage 250 V
	Mount Type DIN Rail
	Breaking Capacity 50kA
	Range SmiSSline, S400
	Series S400M
	Depth 75mm
	Standards/Approvals IEC/EN 60947-1, IEC/EN 60947-2, EN 60898-1
	Width 18 mm
	Reset Actuator Type Toggle Switch

COO (Country of Origin):: CH

ABB S400M Series MCB, 1 Pole, 13A Current Rating - S401M-B13

This miniature circuit breaker is designed for electrical protection in commercial and industrial settings. The MCB provides a current rating of 13A and features a dual tripping mechanism, combining delayed thermal tripping for overload protection with electromechanical tripping for short circuit incidents. With dimensions of 18mm in width, 91mm in length, and 75mm in depth, it fits seamlessly onto DIN rails.

Features & Benefits

• Dual tripping mechanism prevents overload and short circuits

• Offers 10kA breaking capacity for high fault protection

• Compact DIN rail mount design saves installation space

• Screw terminal type for secure and easy connections

Applications

• Used for electrical distribution in commercial buildings

• Utilised in industrial machinery for protection against faults

Can it be mounted in any position?

Yes, it allows for versatile installation orientations.

Is this circuit breaker easy to install in standard electrical panels?

Yes, it features a snap-on design that allows for rapid and secure mounting on DIN rails.