Overcurrent circuit breaker, 6kA BKJ63Nd series 4P 20A characteristic C BKJ63Nd 4P C20 BKJ63ND 4P C20

Overcurrent circuit breaker BKJ63Nd 4P 20A is a reliable safety element for electrical installations, designed to protect against the effects of overloads and short circuits. This device, characterized by a rated current of 20A and a breaking capacity of 6kA, finds application in both domestic and industrial installations.

Characteristics and application

The BKJ63Nd circuit breaker with characteristic C provides optimal protection for electrical circuits. Characteristic C means that the circuit breaker reacts with a slight delay to an increase in current, which is particularly important in the case of loads with high inrush current, such as motors or transformers. This avoids unnecessary tripping of the device when starting connected receivers. The 4-pole design ensures that the circuit breaker effectively protects polyphase electrical circuits.

Construction and mounting

The circuit breaker is designed for mounting on a 35mm DIN rail, which simplifies and speeds up its installation. It has universal dual-lug and screw terminals, allowing connection of wires with a cross-section of up to 25mm². The width of the circuit breaker is 17.8mm per pole, which allows for efficient use of space in the switchgear cabinet. Operation at temperatures from -5°C to +40°C guarantees reliable operation in various environmental conditions. The circuit breaker meets the requirements of IEC 60898-1 and IEC 60947-2 standards, confirming its safety and quality.

Advantages and benefits

• High breaking capacity: 6kA ensures effective protection of the installation against the effects of short circuits.
• Characteristic C: ideal for circuits with inductive loads and high inrush current.
• Universal terminals: dual-lug and screw terminals facilitate connection of wires of different cross-sections.
• DIN rail mounting: quick and easy mounting in the switchgear cabinet.
• Wide operating temperature range: reliable operation in various environmental conditions (-5°C to +40°C).
• Compliance with standards: meets the requirements of IEC 60898-1 and IEC 60947-2 – guarantee of safety and quality.
• Durable construction: ensures long device life (electrical life: 10,000 cycles, mechanical life: 20,000 cycles).
• Compact dimensions: efficient use of space in the switchgear cabinet (17.8mm per pole).