ABB SmiSSline, S400 S400M Miniature Circuit Breaker, 1-Pole, 1.6 A, Type K, Type D, Type C, Type B, 400 V AC, 250 V DC,

RS Stock No.:: 178-774
Mfr. Part No.:: 2CCS571001R0974 - S401MC16
Brand:: ABB

ABB SmiSSline, S400 S400M Miniature Circuit Breaker, 1-Pole, 1.6 A, Type K, Type D, Type C, Type B, 400 V AC, 250 V DC,

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Subtotal (1 unit)*

£36.85

(exc. VAT)

£44.22

(inc. VAT)

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Shipping from 26 February 2026

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Units	Per unit
1 +	£36.85

*price indicative

RS Stock No.:: 178-774
Mfr. Part No.:: 2CCS571001R0974 - S401MC16
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	1.6 A
	Tripping Characteristics	Type K, Type D, Type C, Type B
	Rated AC Voltage	400 V
	Rated DC Voltage	250 V
	Mount Type	DIN Rail
	Breaking Capacity	10kA
	Range	SmiSSline, S400
	Series	S400M
	Width	18 mm
	Depth	75mm
	Standards/Approvals	IEC/EN 60947-2, EN 60898-1
	Reset Actuator Type	Toggle Switch

	Select all
	Brand ABB
	Product Type Miniature Circuit Breaker
	Number of Poles 1
	Current Rating 1.6 A
	Tripping Characteristics Type K, Type D, Type C, Type B
	Rated AC Voltage 400 V
	Rated DC Voltage 250 V
	Mount Type DIN Rail
	Breaking Capacity 10kA
	Range SmiSSline, S400
	Series S400M
	Width 18 mm
	Depth 75mm
	Standards/Approvals IEC/EN 60947-2, EN 60898-1
	Reset Actuator Type Toggle Switch

COO (Country of Origin):: CH

ABB S400M Series MCB, 1 Pole, 1.6A Current Rating - 2CCS571001R0974 - S401MC16

This miniature circuit breaker (MCB) operates as a protective device in electrical systems. It is designed to protect circuits from overload and short circuits and features a compact size of 18mm in width and 75mm in length, allowing for easy installation on a DIN rail. With a current rating of 1.6A and a breaking capacity of 10kA, it provides protection for various applications, ensuring safety and efficiency.

Features & Benefits

• Type C circuit breaker suitable for inductive loads

• 10kA breaking capacity ensures performance

• Easily mountable on a standard DIN rail

• Overload protection prevents equipment damage

• Thermal tripping mechanism for operation reliability

• Screw terminal connection for secure wiring

Applications

• Effective in distribution panels for power management

• Used in residential electrical panels to protect circuits for general-purpose lighting and power outlets

Is it compatible with a DIN rail?

Yes, it easily mounts on standard DIN rails.

How does the thermal element provide overload protection?

The thermal element heats up with excess current, activating the breaker to protect the circuit from overloads.