Overcurrent circuit breaker, 6kA series BKJ63Nd 2P 50A characteristic C BKJ63Nd 2P C50 BKJ63ND 2P C50

Installation and Device Protection

The BKJ63Nd circuit breaker is a reliable element protecting electrical circuits against overloads and short circuits. Designed for use in building, industrial and residential installations, it provides effective protection for both installers and end-users. The construction of this circuit breaker is based on proven LS Electric technology, guaranteeing long-lasting and trouble-free operation.

Characteristics and application

The BKJ63Nd circuit breaker with C characteristic is particularly recommended for protecting circuits with receivers with high inrush current, such as electric motors, transformers or heating devices. The C characteristic allows for short-term exceeding of the rated current without unnecessary tripping, which minimizes the risk of false alarms and downtime. This ensures smooth starting of connected devices and stable operation of the entire installation. This circuit breaker is used to protect lighting, socket outlets and other electrical devices.

Construction and mounting

The BKJ63Nd circuit breaker is mounted on a standard 35mm DIN rail, which facilitates and speeds up installation. It has screw terminals and lugs, allowing connection of wires with a cross-section of up to 25mm². The compact dimensions (17.8mm per pole) allow for efficient use of space in the switchgear cabinet. The circuit breaker has been designed with ease of use and reliable operation in a wide range of ambient temperatures (-5°C to +40°C) in mind. It meets the requirements of IEC 60898-1 and IEC 60947-2 standards, which confirms its high quality and safety of use. This circuit breaker is available in a two-pole (2P) version with a rated current of 50A and has a short-circuit breaking capacity of 6kA at 415VAC.