ABB SMISSLINE TP S400M Miniature Circuit Breaker, 1-Pole, 20 A, Type K, Type D, Type C, Type B, 400 V AC, 250 V DC, 10

RS Stock No.:: 176-295
Mfr. Part No.:: 2CCS571001R0204 S401M-C20
Brand:: ABB

ABB SMISSLINE TP S400M Miniature Circuit Breaker, 1-Pole, 20 A, Type K, Type D, Type C, Type B, 400 V AC, 250 V DC, 10

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Subtotal (1 unit)*

£28.32

(exc. VAT)

£33.98

(inc. VAT)

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In Stock

Plus 2 unit(s) shipping from 09 February 2026
Plus 1 unit(s) shipping from 09 February 2026

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Units	Per unit
1 +	£28.32

*price indicative

RS Stock No.:: 176-295
Mfr. Part No.:: 2CCS571001R0204 S401M-C20
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
	Number of Poles	1
	Product Type	Miniature Circuit Breaker
	Current Rating	20 A
	Tripping Characteristics	Type K, Type D, Type C, Type B
	Rated AC Voltage	400 V
	Rated DC Voltage	250 V
	Breaking Capacity	10kA
	Mount Type	DIN Rail
	Range	SMISSLINE TP
	Series	S400M
	Standards/Approvals	IEC/EN 60947-2, IEC/EN 60947-1, EN 60898-1
	Depth	82mm
	Width	18 mm
	Reset Actuator Type	Toggle Switch

	Select all
	Brand ABB
	Number of Poles 1
	Product Type Miniature Circuit Breaker
	Current Rating 20 A
	Tripping Characteristics Type K, Type D, Type C, Type B
	Rated AC Voltage 400 V
	Rated DC Voltage 250 V
	Breaking Capacity 10kA
	Mount Type DIN Rail
	Range SMISSLINE TP
	Series S400M
	Standards/Approvals IEC/EN 60947-2, IEC/EN 60947-1, EN 60898-1
	Depth 82mm
	Width 18 mm
	Reset Actuator Type Toggle Switch

COO (Country of Origin):: CH

ABB S400M Series MCB, 1 Pole, 20A Current Rating - S401M-C20

This miniature circuit breaker (MCB) is designed to protect electrical circuits by offering effective overload and short-circuit protection. With dimensions of 18mm in width, 91mm in height, and 82mm in depth, it is built for easy DIN rail installation. Rated for both 230V and 400V applications, it provides a robust breaking capacity of 10kA.

Features & Benefits

• Thermal tripping mechanism enhances safety and prevents overloads

• Rated current of 20A for added safety

• Compact design allows for efficient DIN rail mounting

Applications

• Used in industrial control panels to protect circuits for high-power equipment such as large motors and generators

• Employed in lighting control panels to safeguard circuits driving high-intensity lamps and extensive LED arrays

• Utilised in distribution boards for commercial and large residential installations to provide reliable circuit protection

Will it trip during temporary overloads?

Yes, it has a thermal tripping mechanism for overloads.

Does it meet international standards?

Yes, it complies with IEC/EN