Overcurrent circuit breaker, 6kA BKJ63Nd series 1P 40A characteristic D BKJ63Nd 1P D40 BKJ63ND 1P D40

Overcurrent circuit breaker BKJ63Nd 1P 40A is a safety element protecting the electrical installation against overloads and short circuits. It belongs to the BKJ63Nd series from LS Electric, characterized by high reliability and durability. The device is designed for mounting on a 35mm DIN rail and provides effective protection in circuits with a voltage of 240/415V AC.

Application and functionality

The BKJ63Nd circuit breaker with characteristic D is particularly recommended for protecting circuits with receivers with high starting current, such as motors, transformers or heating devices. Characteristic D allows for short-term overloads without unnecessary tripping of the circuit, which is crucial for the proper operation of these devices. This minimizes the risk of false alarms and downtime.

Construction and parameters

The circuit breaker has been designed with easy installation and operation in mind. It has screw or lug terminals, which facilitate connection of the wires. The housing made of high-quality materials ensures resistance to mechanical damage and weather conditions (operating temperature from -5°C to +40°C). Compliance with IEC 60898-1 and IEC 60947-2 standards guarantees safety of use and meeting stringent quality requirements.

This circuit breaker is characterized by a rated current of 40A, making it suitable for protecting circuits with medium power consumption. It is designed for operation in single-phase and three-phase installations with a voltage of 240/415V AC. Its tripping characteristic D makes it ideal for inductive and resistive circuits with high starting current. The short-circuit breaking capacity is 6kA, which ensures effective disconnection of the circuit in the event of a short circuit. It is a single-pole (1P) circuit breaker designed for mounting on a standard 35mm DIN rail and has a protection degree of IP20.

LS Electric BKJ63Nd series circuit breakers are a proven choice for both professional installers and end-users looking for a reliable and safe solution in the field of electrical installation protection.