Circuit breaker Legrand 419137 B20A 1P 6kA — B20A single-pole miniature circuit breaker, 6 kA breaking capacity

Legrand 419137 is a B20A single-pole miniature circuit breaker with a B tripping characteristic and a rated current of 20 A. It is designed to provide overcurrent and short-circuit protection in residential and light commercial electrical installations. The breaker has a breaking capacity of 6 kA and a compact form factor for DIN-rail mounting in distribution boards.

Advantages

The Legrand 419137 offers reliable overload and short-circuit protection with a B characteristic suitable for protecting circuits with mostly resistive loads. Its 6 kA breaking capacity meets common safety requirements for household and small commercial installations. The single-pole design and standard DIN-rail mounting enable space-efficient installation and straightforward replacement in distribution panels.

Suitable for

Key specifications

How to use

Install the breaker on a standard 35 mm DIN-rail inside the distribution board following local electrical codes. Connect the phase conductor to the breaker’s input terminal and the load conductor to the output terminal, ensuring tight and secure connections. Use the breaker to switch and protect the circuit; in case of overload or short circuit the device will trip and interrupt the circuit. After resolving the fault, reset the breaker by switching it back to the ON position.

Recommendations

Verify compatibility with the installation’s supply voltage and coordination with upstream protective devices. Ensure proper selection of the B20A characteristic according to the connected load type, and have installation, maintenance, and testing performed by a qualified electrician in accordance with local regulations.