LSiS BKH 3P D80A Miniature Circuit Breaker, 3-Pole, 80A, 10kA, 1.5 Module

The LSiS BKH 3P D80A is a professional-grade 3-pole miniature circuit breaker engineered to provide robust protection for electrical distribution systems. This device is specifically designed to handle high-current applications, offering a rated current of 80A and a substantial breaking capacity of 10kA. Its compact 1.5-module design allows for efficient space utilization within electrical panels, making it a reliable choice for maintaining circuit integrity in demanding environments.

Advantages

This miniature circuit breaker excels in providing consistent protection against both overloads and short circuits, which is essential for preventing damage to electrical infrastructure. The 3-pole configuration ensures simultaneous disconnection of all phases, enhancing safety during maintenance or fault conditions. Its high breaking capacity of 10kA allows it to safely interrupt significant fault currents, while the compact 1.5-module width helps optimize installation space in crowded distribution boards.

Suitable for

• Industrial power distribution systems
• Commercial building electrical panels
• Protection of high-load electrical circuits
• Infrastructure requiring reliable short-circuit and overload protection

When it may not be suitable

This device is not intended for residential applications where lower amperage ratings are typically required. It is also not suitable for environments exceeding its specified voltage or environmental operating limits.

Key specifications

• Number of poles: 3
• Rated current: 80A
• Breaking capacity: 10kA
• Module width: 1.5 modules
• Tripping characteristic: D-curve

How to use

The circuit breaker should be installed by a qualified electrician onto a standard DIN rail within a distribution board. Ensure that the supply cables are securely connected to the input terminals and that the load cables are connected to the output terminals, following the torque specifications provided by the manufacturer. Once installed, the device can be manually switched on or off using the front-mounted toggle lever.

What to consider before purchase

• Verify that the 80A rating matches your specific circuit load requirements.
• Ensure the 1.5-module width fits within your existing distribution board layout.
• Confirm that the D-curve tripping characteristic is appropriate for your connected equipment.

Usage recommendations: Regularly inspect the circuit breaker for signs of thermal stress or loose connections. It is recommended to perform periodic testing of the switching mechanism to ensure continued operational reliability.