Circuit Breaker Legrand LE-419138 single-phase 25A Type B

Legrand LE-419138 single-phase circuit breaker rated at 25 A with a Type B tripping characteristic provides overcurrent protection for residential and light commercial electrical installations. Designed for DIN-rail mounting in distribution boards, this compact device interrupts supply in the event of short circuits and overloads to protect lighting circuits, socket outlets and small appliances. The Type B curve ensures rapid tripping at low fault currents, making it suitable for typical domestic circuits with moderate inrush currents.

Advantages

The breaker combines compact dimensions for efficient use of panel space with consistent electrical performance and repeatable tripping behavior. Its single-pole design allows straightforward integration into single-phase distribution boards, while the Type B characteristic minimizes nuisance trips on circuits without large motor starts. The device is suitable for common residential wiring practices and supports straightforward installation and servicing.

Suitable for

• Protecting lighting circuits in homes and apartments
• Protecting socket outlets and small domestic appliances
• Overcurrent protection in small commercial or office distribution boards
• DIN-rail mounted single-phase distribution applications

Key specifications

• Rated current: 25 A
• Tripping characteristic: Type B (instantaneous trip at low multiple of In)
• Poles: single-pole (single-phase)
• Mounting: DIN-rail compatible
• Protection functions: overload and short-circuit interruption
• Typical applications: lighting, sockets, small appliances

How to use

Install the circuit breaker on a standard DIN rail inside an appropriate distribution board by following local electrical codes and safety practices. Connect the incoming phase conductor to the breaker terminal and the outgoing phase conductor to the load terminal, ensuring all connections are tightened to the recommended torque. The device should be positioned and labeled according to the panel layout so that the protected circuit is clearly identifiable. After installation, verify correct operation by applying normal load and performing a controlled trip test if required by local regulations.

Usage recommendations

Choose the Legrand 25 A Type B breaker for typical household circuits where protection of lighting, receptacles and small appliances is required and where motor inrush currents are limited. Coordinate with upstream protection and ensure upstream and downstream devices share compatible tripping characteristics and ratings. Periodic visual inspection and testing during routine electrical maintenance is recommended to confirm secure connections and proper function.