Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	ABB
	Number of Poles	3
	Product Type	Miniature Circuit Breaker
	Current Rating	10 A
	Tripping Characteristics	Type D, Type K, Type C, Type B
	Rated AC Voltage	400 V ac
	Rated DC Voltage	250 V dc
	Breaking Capacity	50kA
	Mount Type	DIN Rail
	Range	S400
	Series	S400
	Width	54 mm
	Depth	75mm
	Standards/Approvals	IEC/EN 60947-2, EN 60898-1
	Reset Actuator Type	Toggle Switch

	Select all
	Brand ABB
	Number of Poles 3
	Product Type Miniature Circuit Breaker
	Current Rating 10 A
	Tripping Characteristics Type D, Type K, Type C, Type B
	Rated AC Voltage 400 V ac
	Rated DC Voltage 250 V dc
	Breaking Capacity 50kA
	Mount Type DIN Rail
	Range S400
	Series S400
	Width 54 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, 3 Poles, 10A Current Rating - S403M-C10

This 3-pole miniature circuit breaker is engineered to provide dependable protection against overloads and short circuits. It features a C-type tripping characteristic and is ideal for circuits with significant inrush currents.

Features & Benefits

• Provides accurate protection against overloads and short circuits through a combination of thermal and magnetic trip mechanisms

• Incorporates a trip-free mechanism that prevents the breaker from being manually reset while tripped, enhancing safety

• Designed with clear, user-friendly labelling for easy identification and operational ease

• Features a temperature compensation mechanism that adjusts tripping characteristics based on ambient temperature, ensuring consistent performance

• Includes a snap-on design for quick and easy installation on standard DIN rails

Applications

• Used in control panels for heating and cooling systems to safeguard against electrical faults

• Applied in lighting systems to protect circuits driving high-intensity lamps and LED fixtures

• Utilised in motor control panels to shield circuits powering various industrial equipment such as pumps and fans

• Employed in distribution boards for commercial and residential installations to ensure reliable circuit protection

What protection does the thermal element provide?

The thermal element offers overload protection by activating the breaker when excess current heats it beyond a set threshold

How does the magnetic element enhance circuit protection?

The magnetic element provides rapid tripping during short circuits by responding to sudden spikes in fault current

Is this circuit breaker suitable for handling high inrush currents?

Yes, it is designed to accommodate high inrush currents typically associated with inductive loads

Units	Per unit
1 - 9	$282.11
10 - 49	$272.24
50 +	$259.53

ABB S400 S400 Miniature Circuit Breaker, 3-Pole, 10 A, Type D, Type K, Type C, Type B, 400 V ac AC, 250 V dc DC, 50 kA