Hager MCB 25A Single Pole Type C Curve NCN125A

Hager NCN125A: 25A Single Pole C Curve Miniature Circuit Breaker (MCB) with dual 10kA/15kA breaking capacity for consumer unit and distribution board protection.

Safety & Reliability

This mini circuit breaker protects circuits against both overload current and short circuit faults, with a trip-free mechanism that stops the toggle being held closed during a fault condition. That means downstream cables and equipment stay protected even if someone tries to reset the breaker under fault conditions. The C curve tripping characteristic suits circuits with higher inrush currents, such as those with motors or transformers.

Control & Isolation

The toggle clearly shows a green "OFF" mechanical position when isolated, so electricians can confirm the state of the circuit at a glance without testing. This speeds up safe isolation procedures and reduces the risk of working on a live circuit by mistake.

Installation & Compliance

As a single pole, single module Hager miniature circuit breaker, the NCN125A fits standard DIN rail enclosures without eating into board space, useful when working to tight consumer unit layouts. Terminals accept 25mm² flexible or 35mm² rigid conductors, covering typical final circuit and sub-main wiring. The unit conforms to BS EN 60898-2 (10kA) and BS EN 60947-2 (15kA), giving specifiers a documented breaking capacity for both domestic and light industrial applications.

Wylex & Hager Compatibility

As a Hager MCB electrical device built to current BS EN standards, the NCN125A is a straightforward like-for-like replacement or new installation option wherever a Hager or wylex miniature circuit breaker specification is called for on the schedule.

Key Features of the Hager NCN125A Include:

• Protects Circuits Against Overload Current And Short Circuit Faults
• Trip-Free Mechanism Prevents The Breaker Being Held Closed During A Fault
• Clear Green "OFF" Toggle Indication For Safe Isolation At A Glance
• C Curve Tripping Characteristic Suited To Circuits With Higher Inrush Currents
• High Breaking Capacity: 10kA (BS EN 60898-2) / 15kA (BS EN 60947-2)
• Rated Current: 25A
• Rated Voltage: 400V AC
• Frequency: 50Hz
• Single Pole, 1 Module Width For Compact Board Installation
• Connection Capacity: 25mm² Flexible Conductor, 35mm² Rigid Conductor
• Degree Of Protection: IP20
• Minimum Ambient Operating Temperature: -25°C
• Rated Impulse Withstand Voltage (Uimp): 6kV
• Compliant With BS EN 60898-2 & BS EN 60947-2
• Supplied As: Single MCB Unit

If you need some help, would like to take advantage of our Price Promise or have a large order to place, give our team of professionals a call on 0203 994 5470, drop us an email at sales@electricpoint.com or use our Contact Form.