Schneider Electric Acti9 C120N Miniature Circuit Breaker, 1-Pole, 125 A, Type C, 240 V ac AC, 125 V DC, 10 kA Breaking

RS Stock No.:: 230-6681
Mfr. Part No.:: A9N18359
Brand:: Schneider Electric

Schneider Electric Acti9 C120N Miniature Circuit Breaker, 1-Pole, 125 A, Type C, 240 V ac AC, 125 V DC, 10 kA Breaking

Subtotal (1 unit)*

$158.62

(exc. GST)

$174.48

(inc. GST)

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Shipping from 02 March 2026

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Units	Per unit
1 +	$158.62

*price indicative

RS Stock No.:: 230-6681
Mfr. Part No.:: A9N18359
Brand:: Schneider Electric

Specifications

Technical data sheets

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	1
	Current Rating	125 A
	Tripping Characteristics	Type C
	Rated AC Voltage	240 V ac
	Rated DC Voltage	125 V
	Breaking Capacity	10kA
	Mount Type	DIN Rail
	Range	Acti9
	Series	C120N
	Terminal Type	Tunnel
	IP Rating	IP20
	Standards/Approvals	IEC 60947-2, EN 60947-2
	Height	81mm
	Depth	73mm
	Width	27 mm
	Tripping Mechanism	Thermal Magnetic
	Reset Actuator Type	Toggle Switch

	Select all
	Brand Schneider Electric
	Product Type Miniature Circuit Breaker
	Number of Poles 1
	Current Rating 125 A
	Tripping Characteristics Type C
	Rated AC Voltage 240 V ac
	Rated DC Voltage 125 V
	Breaking Capacity 10kA
	Mount Type DIN Rail
	Range Acti9
	Series C120N
	Terminal Type Tunnel
	IP Rating IP20
	Standards/Approvals IEC 60947-2, EN 60947-2
	Height 81mm
	Depth 73mm
	Width 27 mm
	Tripping Mechanism Thermal Magnetic
	Reset Actuator Type Toggle Switch

COO (Country of Origin):: CN

Schneider Electric C120N Series MCB, 125A Current Rating, 15kA Breaking Capacity - A9N18359

This miniature circuit breaker (MCB) is designed for distribution applications, providing robust protection against short circuits and overloads. With a current rating of 125A and a width of 81mm, it is ideal for installation on DIN rails, making it a practical choice for various electrical systems.

Features & Benefits

• Thermal-magnetic mechanism enhances circuit reliability

• 15kA breaking capacity ensures effective fault clearance

• Compact design with dimensions suited for standard installations

• Tunnel terminals accommodate a range of wire sizes

• IP20 rating provides adequate protection against dust particles

Applications

• Utilised in industrial automation systems for power distribution

• Effective in commercial buildings for electrical safety

• Integrated into machinery for overload and short circuit protection

• Suitable for residential electrical panels to prevent failures

What type of loads is this circuit breaker suitable for?

The C curve classification indicates suitability for applications involving inductive loads, such as motors and transformers, providing reliable operation under normal conditions.

How does the thermal-magnetic mechanism work?

The thermal-magnetic mechanism combines thermal sensitivity for overloads and magnetic activation for short circuits, providing comprehensive protection and uninterrupted operation in critical systems.

Can multiple devices be interconnected with this MCB?

Yes, it can be installed alongside other devices on a DIN rail, allowing flexible configurations and efficient management of electrical circuits within distribution boards.

What is the significance of the 15kA breaking capacity rating?

This rating indicates the maximum fault current the MCB can interrupt without sustaining damage, ensuring that it remains functional after potential overloads.

What are the environmental considerations for use?

The MCB operates efficiently in ambient temperatures ranging from -25°C to 70°C, suitable for diverse environments, including areas of high humidity.