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Schneider Electric Acti9 C120N Miniature Circuit Breaker, 3-Pole, 125A, Type C, 440V ac AC, 375 V dc DC, 10 kA Breaking

RS Stock No.:: 776-3076
Mfr. Part No.:: A9N18369
Brand:: Schneider Electric

Schneider Electric Acti9 C120N Miniature Circuit Breaker, 3-Pole, 125A, Type C, 440V ac AC, 375 V dc DC, 10 kA Breaking

Subtotal (1 unit)*

£286.03

(exc. VAT)

£343.24

(inc. VAT)

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In Stock

Plus 1 unit(s) shipping from 01 June 2026

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Units	Per unit
1 +	£286.03

*price indicative

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RS Stock No.:: 776-3076
Mfr. Part No.:: A9N18369
Brand:: Schneider Electric

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Schneider Electric
	Product Type	Miniature Circuit Breaker
	Number of Poles	3
	Current Rating	125A
	Tripping Characteristics	Type C
	Rated AC Voltage	440V ac
	Rated DC Voltage	375V dc
	Mount Type	DIN Rail
	Breaking Capacity	10kA
	Range	Acti9
	Series	C120N
	Terminal Type	Tunnel
	IP Rating	IP20
	Standards/Approvals	RoHS, EAC, EN/IEC 60898-1, EN/IEC 60947-2, REACH
	Width	81mm
	Depth	81mm
	Height	81mm
	Better World Product	Yes
	Better World Verification	Byggvarubedömningen
	Tripping Mechanism	Thermal Magnetic
	Reset Actuator Type	Toggle Switch
	Break Time	Instantaneous

	Select all
	Brand Schneider Electric
	Product Type Miniature Circuit Breaker
	Number of Poles 3
	Current Rating 125A
	Tripping Characteristics Type C
	Rated AC Voltage 440V ac
	Rated DC Voltage 375V dc
	Mount Type DIN Rail
	Breaking Capacity 10kA
	Range Acti9
	Series C120N
	Terminal Type Tunnel
	IP Rating IP20
	Standards/Approvals RoHS, EAC, EN/IEC 60898-1, EN/IEC 60947-2, REACH
	Width 81mm
	Depth 81mm
	Height 81mm
	Better World Product Yes
	Better World Verification Byggvarubedömningen
	Tripping Mechanism Thermal Magnetic
	Reset Actuator Type Toggle Switch
	Break Time Instantaneous

COO (Country of Origin):: FR

Schneider Electric C120N Series MCB, 125A Current Rating, 3 Poles - A9N18369

This MCB is an essential component for electrical distribution systems, ensuring effective short circuit protection and reliable operation. The dimensions of this compact unit include a width and height of 81mm and a depth of 73mm, making it suitable for DIN rail mounting. Designed for a current rating of 125A, it supports both AC and DC applications with a rated voltage of up to 440V.

Features & Benefits

• Offers Type C tripping characteristics for medium load protection

• Equipped with thermal-magnetic technology for enhanced reliability

• Features tunnel terminal contacts for secure and easy wiring

• Supports installation on standard 35mm symmetrical DIN rails

• Designed for both operational isolation and distribution usage

Applications

• Utilised in commercial and industrial electrical panels

• Applied in automation systems requiring reliable circuit protection

• Effective in environments with varying electrical loads

• Suitable for use in mechanical and electrical installations

• Ideal for protecting sensitive equipment from overload conditions

What type of terminal connections does this device accommodate?

This circuit breaker features tunnel type terminals that can support rigid wires from 1 to 50 mm² and flexible wires from 1.5 to 35 mm², ensuring versatility and adaptability in various installations.

How does the breaking capacity of this unit compare for AC and DC applications?

For AC applications, it has a breaking capacity of 10kA for voltages up to 440V, while for DC applications, it is rated at 10kA for voltages up to 375V, confirming its efficacy in both system types.

What are the operational temperature limits for this circuit breaker?

The operational temperature range for this device is -25°C to 70°C, allowing it to function efficiently in diverse environmental conditions without compromising performance.