LSiS BKH 4P D80A Miniature Circuit Breaker, 80A, 10kA, 4-Pole

The LSiS BKH 4P D80A is a high-performance 4-pole miniature circuit breaker engineered to provide robust protection for electrical circuits in commercial and industrial environments. This device is designed to safeguard electrical systems against overloads and short circuits, ensuring consistent operational safety and reliability. With a rated current of 80A and a breaking capacity of 10kA, it is built to handle demanding electrical loads while maintaining system integrity.

Advantages

This miniature circuit breaker offers exceptional durability and precision in its tripping mechanism, which is essential for preventing damage to sensitive equipment. Its 4-pole configuration allows for the simultaneous disconnection of all phases and the neutral, providing comprehensive isolation. The compact design optimizes space within distribution boards, while the high breaking capacity ensures that the device can safely interrupt significant fault currents, thereby protecting the downstream infrastructure from potential hazards.

Suitable for

• Industrial electrical distribution panels
• Commercial building power supply systems
• Protection of high-current machinery and equipment
• Three-phase electrical installations requiring neutral switching

When it may not be suitable

This circuit breaker is not intended for residential applications where the current requirements are significantly lower than 80A, as it may not provide the necessary sensitivity for smaller household circuits. It is also not suitable for environments exposed to extreme moisture, dust, or corrosive gases without appropriate protective enclosure housing.

Key specifications

• Rated current: 80A
• Number of poles: 4
• Breaking capacity: 10kA
• Design: 1.5-module width per pole
• Application: Overload and short-circuit protection

How to use

The LSiS BKH 4P D80A should be installed by a qualified electrician onto a standard DIN rail within a distribution board. Ensure that the supply cables are correctly sized for an 80A load and securely fastened to the terminals to prevent overheating. Once installed, the device can be manually switched on or off using the front-facing toggle. In the event of a fault, the breaker will trip automatically to the off position, requiring a manual reset after the underlying issue has been identified and resolved.

What to consider before purchase

• Verify that the 80A rating matches your circuit load requirements
• Ensure there is sufficient space in your distribution board for a 4-pole device
• Confirm that the 10kA breaking capacity is adequate for your installation's prospective short-circuit current
• Check compatibility with existing DIN rail mounting systems

Usage recommendations

Regularly inspect the circuit breaker for signs of thermal damage or loose connections. It is recommended to perform a functional test of the tripping mechanism periodically to ensure continued operational readiness in accordance with local electrical safety standards.