Hager MCB 63A Single Pole Type B Curve NBN163A

Hager NBN163A: 63A 1 Pole B Curve Miniature Circuit Breaker (MCB) with 10kA/15kA short-circuit breaking capacity.

Safety & Reliability

This mini circuit breaker protects circuits against both overload current and short circuit faults, with a trip-free mechanism that stops the contacts being held closed during a fault condition. The toggle switch shows a clear green "OFF" position, giving installers an unmistakable visual check that isolation has been achieved before opening up a circuit.

High Breaking Capacity for Demanding Installations

Rated at 10kA to BS EN 60898-2 and 15kA to BS EN 60947-2, this Hager miniature circuit breaker handles higher fault currents than a standard domestic MCB. That makes it a practical choice for commercial and light industrial distribution boards, or any installation where prospective fault levels exceed typical domestic ratings.

Installation & Compliance

A compact single-module width keeps panel space to a minimum, and terminals accept up to 25mm² flexible or 35mm² rigid conductors for straightforward first-fix wiring. As a mcb electrical component built to BS EN 60898-2 and BS EN 60947-2, this Hager miniature circuit breaker gives contractors a compliant, drop-in solution for B Curve overcurrent protection on single-pole circuits.

Key Features of the Hager Miniature Circuit Breaker (MCB) NBN163A Include:

• Protects Circuits Against Overload And Short Circuit Faults
• Trip-Free Mechanism Prevents Contacts Being Held Closed During A Fault
• Green “OFF” Toggle Position Gives Clear Visual Isolation Indication
• B Curve Tripping Characteristic Suits General Circuit Protection
• Rated Current: 63A
• Rated Voltage: 400V AC
• Frequency: 50Hz
• Number Of Poles: 1
• Breaking Capacity Icn: 10kA (BS EN 60898-2)
• Breaking Capacity Icu: 15kA (BS EN 60947-2)
• Rated Insulation Voltage Ui: 500V
• Rated Impulse Withstand Voltage Uimp: 6kV
• Current Limiting Class: 3
• Over Voltage Category: 3
• Pollution Degree: 2
• Degree Of Protection: IP20
• Width: 1 Modular Spacing
• Connection Capacity: 25mm² Flexible / 35mm² Rigid Conductor
• Ambient Operating Temperature: -25°C
• Complies With BS EN 60898-2 & BS EN 60947-2

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.