Overcurrent circuit breaker, 10kA series BKH 4P 125A characteristic D BKH 4P D125A

4-pole 125A BKH Overcurrent Circuit Breaker – Reliable Installation Protection

The BKH 4P installation circuit breaker with a rated current of 125A is a protective device designed to protect electrical circuits against overloads and short circuits. It is characterized by high efficiency and a durable construction, making it an ideal solution for both home and industrial installations. Its construction based on characteristic D provides resistance to surge currents, which is particularly important in the case of inductive loads, such as motors or transformers.

Characteristics and application

The BKH 4P D125A circuit breaker is a device that finds application in a wide range of electrical installations. Thanks to its four-pole construction, it provides complete circuit protection by disconnecting all phases in the event of a failure. Characteristic D means a delayed response to current increase, which allows for safe start-up of devices generating high inrush currents – without unnecessary circuit tripping. This is particularly important when protecting circuits powering motors, welding machines or other devices with high power consumption.

Advantages and benefits

• High breaking capacity: 10kA – guarantees quick and effective disconnection of the circuit in the event of a short circuit.
• Characteristic D: Delayed response to current increase allows for safe start-up of devices with high inrush current.
• Four-pole construction (4P): Provides complete circuit protection by disconnecting all phases simultaneously.
• Durable construction: Made of high-quality materials, ensuring long-lasting and reliable operation.
• Compliance with standards: Meets the requirements of IEC 60947-2 standards, confirming its safety and quality.
• Versatility: Suitable for use in home, commercial and industrial installations.
• Easy installation: The design allows for quick and easy mounting on a TH35 rail.

Construction and operating parameters

The BKH 4P D125A circuit breaker has been designed with ease of installation and use in mind. Its compact dimensions allow it to be placed even in tight electrical panels. The device is adapted to operate at an ambient temperature from -5°C to +40°C, which ensures its reliable operation in various environmental conditions. Remember to select the circuit breaker correctly for the protected installation and to follow safety rules during installation and operation. This circuit breaker is manufactured by LS Electric (formerly LG Industrial Systems), a renowned manufacturer of electrical equipment.