ABB SmiSSline S400M Miniature Circuit Breaker, 3-Pole, 16A, Type K, Type D, Type C, Type B, 400V ac AC, 250 V dc DC, 10

RS Stock No.:: 177-579
Mfr. Part No.:: 2CCS573001R0165 S403M-B16
Manufacturer:: ABB

ABB SmiSSline S400M Miniature Circuit Breaker, 3-Pole, 16A, Type K, Type D, Type C, Type B, 400V ac AC, 250 V dc DC, 10

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Subtotal (1 unit)*

€104.43

(exc. VAT)

€128.45

(inc. VAT)

Stocked by manufacturer

Ready to ship from 29 April 2026

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per unit
1 +	€104.43

*price indicative

RS Stock No.:: 177-579
Mfr. Part No.:: 2CCS573001R0165 S403M-B16
Manufacturer:: 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	16A
	Tripping Characteristics	Type K, Type D, Type C, Type B
	Rated AC Voltage	400V ac
	Rated DC Voltage	250V dc
	Breaking Capacity	10kA
	Mount Type	DIN Rail
	Range	SmiSSline
	Series	S400M
	Standards/Approvals	IEC/EN 60947-2, EN 60898-1
	Depth	82mm
	Width	54mm
	Reset Actuator Type	Toggle Switch

	Select all
	Brand ABB
	Product Type Miniature Circuit Breaker
	Number of Poles 3
	Current Rating 16A
	Tripping Characteristics Type K, Type D, Type C, Type B
	Rated AC Voltage 400V ac
	Rated DC Voltage 250V dc
	Breaking Capacity 10kA
	Mount Type DIN Rail
	Range SmiSSline
	Series S400M
	Standards/Approvals IEC/EN 60947-2, EN 60898-1
	Depth 82mm
	Width 54mm
	Reset Actuator Type Toggle Switch

COO (Country of Origin):: CH

ABB S400M Series MCB, 3 Poles, 16A Current Rating - S403M-B16

This miniature circuit breaker (MCB) provides efficient electrical circuit protection in commercial and industrial settings. It features a current rating of 16A and compact dimensions of 54mm in width, 91mm in length, and 82mm in depth. With a high breaking capacity, this MCB ensures reliable operation under various electrical conditions.

Features & Benefits

• 10kA breaking capacity provides high short-circuit protection

• Thermal tripping mechanism safeguards against overloads

• DIN rail mounted design simplifies installation and saves space

• Screw terminal type ensures secure and reliable connections

Applications

• Applied in small industrial control panels to protect circuits for equipment such as motors and fans

• Employed in HVAC systems to ensure protection for circuits managing heating, ventilation, and air conditioning units

Can it handle high voltage fluctuations?

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

Can the tripping mechanisms be adjusted?

No, it comes with fixed thermal and electromechanical tripping mechanisms.