KOOP Elektro LSS C63 3P Miniature Circuit Breaker, 3-Pole, C-Curve, 63A, 6kA

The KOOP Elektro LSS C63 3P is a professional-grade 3-pole miniature circuit breaker engineered to provide robust protection for electrical circuits. This device is designed to monitor and safeguard AC power distribution systems by automatically interrupting the flow of electricity in the event of an overload or a short circuit. With its reliable construction and precise tripping mechanism, it serves as a critical component in maintaining the safety and operational stability of electrical installations in both residential and industrial environments.

Advantages

This miniature circuit breaker offers exceptional reliability through its C-curve tripping characteristic, which is specifically calibrated to handle moderate inrush currents common in inductive loads. The 3-pole configuration allows for the simultaneous disconnection of three phases, ensuring comprehensive protection for three-phase electrical systems. Its 6kA breaking capacity provides a high level of safety by effectively clearing fault currents before they can cause damage to wiring or connected equipment. The compact design facilitates easy installation in standard distribution boards, making it a versatile choice for modern electrical infrastructure.

Suitable for

• Three-phase industrial machinery and equipment
• Residential distribution boards for high-power appliances
• Commercial building electrical systems
• Protection of lighting circuits with moderate starting currents
• General AC power distribution networks

When it may not be suitable

This device is not intended for use in DC electrical systems, as its internal mechanism is specifically designed for AC applications. Furthermore, it may not be appropriate for circuits with extremely high inrush currents, such as large motors or transformers, where a D-curve breaker would be required to prevent nuisance tripping.

Key specifications

• Number of poles: 3
• Rated current: 63A
• Tripping characteristic: C-curve
• Breaking capacity: 6kA
• System type: AC

How to use

The circuit breaker should be installed by a qualified electrician in accordance with local electrical codes and safety regulations. It is designed for mounting onto a standard DIN rail within an electrical distribution enclosure. Ensure that the supply cables are securely fastened to the input terminals and that the load cables are connected to the output terminals, maintaining proper torque settings to prevent overheating. 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 63A rating matches the requirements of your circuit load.
• Ensure the 6kA breaking capacity is sufficient for the prospective short-circuit current at the installation point.
• Confirm that your system requires a 3-pole configuration for three-phase power.
• Check that the enclosure has sufficient space for a 3-module wide device.

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 safety.