Overcurrent circuit breaker, 6kA BKJ63Nd series 1P 3A B characteristic BKJ63Nd 1P B3 BKJ63ND 1P B3

Overcurrent circuit breaker BKJ63Nd is a reliable safety element protecting electrical installations from the effects of overloads and short circuits. Designed for both domestic and professional applications, it provides effective protection for electrical circuits. The BKJ63Nd 1P model with a rated current of 3A and B characteristic is perfect for circuits with devices with high inrush current, minimizing the risk of unnecessary tripping.

Characteristics and Application

The BKJ63Nd circuit breaker is characterized by high resistance to mechanical and electrical damage, which guarantees long-term and trouble-free operation. The use of characteristic B means that the circuit breaker reacts quickly to short-circuit currents, but is more tolerant to short-term current surges that occur, for example, when starting electric motors or devices with heating elements. This reduces the number of false alarms and unplanned downtime in the installation.

Construction and Parameters

The BKJ63Nd circuit breaker has been designed with safety and ease of use in mind. It has screw terminals allowing the connection of wires with a cross-section of up to 25mm². The housing made of high-quality plastic provides insulation and protection against external factors. The circuit breaker meets the requirements of IEC 60898-1 and IEC 60947-2 standards, which confirms its compliance with European safety standards. The rated impulse voltage is 4kV, and the insulation voltage is 500V. This circuit breaker is available in various versions – from one-, two-, three- to four-pole, allowing it to be adapted to the individual needs of each installation.

Key benefits

• Overload and short-circuit protection: Ensures the safety of the electrical installation and connected devices.
• B characteristic: Ideal for protecting circuits with devices with high inrush current (e.g., motors, heating devices).
• DIN rail mounting: Enables quick and easy installation and servicing.
• Compliance with standards: Meets the requirements of IEC 60898-1 and IEC 60947-2 standards, guaranteeing a high level of safety.
• Durable construction: Made of high-quality materials ensuring long-term and trouble-free operation.
• Wide range of applications: Suitable for installations in residential, commercial and industrial buildings.
• High resistance to environmental conditions: Operation at temperatures from -5°C to +40°C ensures reliability in various operating conditions.