ABB SMISSLINE TP S400M Miniature Circuit Breaker, 3-Pole, 8 A, Type K, Type D, Type C, Type B, 400 V AC, 250 V DC, 10 kA

RS Stock No.:: 178-128
Mfr. Part No.:: 2CCS573001R0085 S403M-B8
Brand:: ABB

ABB SMISSLINE TP S400M Miniature Circuit Breaker, 3-Pole, 8 A, Type K, Type D, Type C, Type B, 400 V AC, 250 V DC, 10 kA

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Subtotal (1 unit)*

$286.16

(exc. GST)

$314.78

(inc. GST)

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Temporarily out of stock

Shipping from 09 February 2026

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Units	Per unit
1 - 9	$286.16
10 - 49	$276.15
50 +	$263.26

*price indicative

RS Stock No.:: 178-128
Mfr. Part No.:: 2CCS573001R0085 S403M-B8
Brand:: ABB

Specifications

Technical data sheets

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	3
	Current Rating	8 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 TP
	Series	S400M
	Width	54 mm
	Standards/Approvals	IEC/EN 60947-2, EN 60898-1
	Depth	75mm
	Reset Actuator Type	Toggle Switch

	Select all
	Brand ABB
	Product Type Miniature Circuit Breaker
	Number of Poles 3
	Current Rating 8 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 TP
	Series S400M
	Width 54 mm
	Standards/Approvals IEC/EN 60947-2, EN 60898-1
	Depth 75mm
	Reset Actuator Type Toggle Switch

COO (Country of Origin):: CH

ABB S400M Series MCB, 3 Poles, 8A Current Rating - S403M-B8

This MCB is a miniature circuit breaker designed for circuit protection in both commercial and industrial applications. With a current rating of 8A and a breaking capacity of 10kA, it provides overload and short circuit protection. The compact dimensions of 54mm in width, 91mm in length, and 75mm in depth make it suitable for DIN rail mounting.

Features & Benefits

• Type B circuit breaker provides protection for general applications

• Combines thermal and electromechanical tripping mechanisms for protection

• Overload protection ensures circuit safety during high current events

• Flexible mounting options enhance installation versatility

Applications

• Utilised in commercial electrical distribution systems

• Suitable for industrial environments requiring robust circuit protection

• Functions effectively in automation and electronics sectors

Can it protect against high voltage surges?

Yes, this device is rated for 230V and 400V AC, managing high voltage surges effectively.

Is it suitable for modular installations?

Yes, it is designed for easy DIN rail mounting, ideal for modular systems.

Will it operate under extreme temperatures?

It operates efficiently in ambient temperatures ranging from -25°C to 60°C.