Overcurrent circuit breaker, 6kA BKJ63Nd series 2P 20A characteristic D BKJ63Nd 2P D20 BKJ63ND 2P D20

Overcurrent circuit breaker BKJ63Nd 2P 20A is a reliable safety element protecting electrical installations from the effects of overloads and short circuits. Designed for both home and professional use, it provides effective protection of wires and electrical devices.

Characteristics and application

This two-pole (2P) circuit breaker with a rated current of 20A is characterized by a D characteristic curve, which means delayed tripping during short-term overloads. This is particularly important in circuits with receivers with high starting current, such as motors or transformers. Thanks to this, the circuit breaker will not trip unnecessarily during device start-up, and yet will react quickly in the event of a real threat. Mounting is done on a standard 35mm DIN rail, which simplifies and speeds up installation.

Construction and product features

The BKJ63Nd circuit breaker has been designed with durability and reliability in mind. Made of high-quality materials, it ensures a long mechanical (20,000 cycles) and electrical (10,000 cycles) life. It has universal terminals – both screw and lug – allowing connection of wires with a cross-section of up to 25mm². The IP20 protection degree guarantees safe use in normal operating conditions. Compact dimensions (17.8mm wide per pole) allow for efficient use of space in the switchgear cabinet.

• Rated current: 20A – suitable for protecting typical circuits with medium power consumption.
• Characteristic curve D: ideal for circuits with inductive or capacitive loads that generate high inrush currents.
• Terminals: dual (screw and lug) – provide flexible wire connection.
• Mounting: on 35mm DIN rail – standard mounting for easy installation and replacement.
• Service life: high mechanical and electrical life guarantees long-term use without frequent replacement.
• Compliance with standards: meets the requirements of IEC 60898-1 and IEC 60947-2 standards, confirming its safety and quality.
• Rated voltage: 240/415 V AC - versatility of use in various electrical installations.
• Breaking capacity: 6kA at 240/415V AC - effective protection against the effects of short circuits.

BKJ63Nd series circuit breakers are compatible with additional accessories, such as status indicators or auxiliary modules, which allows for expanding the functionality of the protection system.