Schneider Electric Acti9 A9N1 Miniature Circuit Breaker, 3-Pole, 125 A, Type D, 375 V DC, 15000 A Breaking Capacity

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RS Stock No.:
219-8302
Mfr. Part No.:
A9N18514
Manufacturer:
Schneider Electric
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Brand

Schneider Electric

Product Type

Miniature Circuit Breaker

Number of Poles

3

Current Rating

125 A

Tripping Characteristics

Type D

Rated DC Voltage

375 V

Mount Type

Clip-on

Breaking Capacity

15000A

Range

Acti9

Series

A9N1

Terminal Type

Tunnel

IP Rating

IP20

Standards/Approvals

EN/IEC 60898-1, EN/IEC 60947-2

Depth

73mm

Height

81mm

Width

81 mm

Reset Actuator Type

Toggle Switch

Tripping Mechanism

Thermal Magnetic

COO (Country of Origin):
FR

Schneider Electric A9N1 Series MCB, 125A Current Rating, Type D Circuit Breaker - A9N18514


This is a miniature circuit breaker (MCB) designed for distribution applications, featuring a robust thermal-magnetic tripping mechanism. With three poles and a current rating of 125A, it ensures reliable protection against overcurrent and short circuits. The compact dimensions of 73mm in width and 81mm in depth make it suitable for DIN rail mounting.

Features & Benefits


• Supports up to 15000A breaking capacity for high-performance protection

• Thermal-magnetic technology offers reliable tripping characteristics

• Designed with short circuit protection for enhanced safety

• Three-pole configuration suitable for a variety of applications

• IP20 rated, ensuring a robust design for indoor use

• Compatible with tunnel-type terminals for flexible wiring options

Applications


• Used for distribution in commercial electrical installations

• Designed for use in industrial environments requiring reliable circuit protection

• Ideal for systems necessitating short circuit protection with high breaking capacity

• Suitable for operating within specified operational voltage limits

What kind of installations is this MCB ideal for?


This MCB is designed for use in commercial and industrial settings, providing reliable circuit protection in distribution applications where high current ratings are necessary.

How does the thermal-magnetic mechanism enhance performance?


The thermal-magnetic tripping mechanism effectively combines thermal and magnetic responses, allowing for instantaneous tripping under fault conditions while also providing delayed operation for overloads, thus enhancing safety.

What is the significance of the breaking capacity rating?


With a breaking capacity of up to 15000A, it ensures that the device can safely interrupt power during fault conditions, preventing potential electrical fires and equipment damage.

What wire sizes can be connected to the terminals?


The tunnel-type terminals accommodate rigid wires up to 50mm² and flexible wires up to 35mm², facilitating a range of wiring needs in various applications.

What environments can this circuit breaker operate in?


This circuit breaker operates efficiently in environments with ambient temperatures ranging from -30°C to 60°C, making it versatile for different installation situations.

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