KOOP Elektro LSS C25 3P Miniature Circuit Breaker, 3-Pole, C-Curve, 25A, 6kA

The KOOP Elektro LSS C25 3P is a high-performance 3-pole miniature circuit breaker engineered to provide reliable protection for electrical circuits in both residential and industrial environments. This device is designed to monitor electrical flow and automatically disconnect the circuit in the event of an overload or short circuit, thereby preventing damage to wiring and connected equipment. With its robust construction and precise tripping mechanism, it ensures consistent safety and operational stability for your electrical distribution system.

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 6kA breaking capacity provides a high level of protection against fault currents, ensuring that the device can safely interrupt power during a short circuit. Its 3-pole configuration makes it an ideal solution for protecting three-phase systems, offering a compact and efficient design that saves space in electrical distribution boards while maintaining high safety standards.

Suitable for

• Residential electrical distribution boards
• Industrial machinery and equipment power supply
• Three-phase motor protection
• Commercial building electrical installations
• Lighting and heating circuit management

When it may not be suitable

This circuit breaker is not intended for use in DC electrical systems, as it is specifically designed for AC applications. Additionally, it may not be suitable for circuits with extremely high starting currents that exceed the parameters of a standard C-curve characteristic, in which case a D-curve breaker might be required.

Key specifications

• Number of poles: 3
• Rated current: 25A
• Tripping characteristic: C-curve
• Breaking capacity: 6kA
• Mounting type: DIN rail

How to use

The device should be installed by a qualified electrician within a standard electrical distribution board on a DIN rail. Ensure that the power supply is completely disconnected before beginning the installation. The wires should be securely fastened to the appropriate terminals, ensuring that the torque specifications are met to prevent loose connections. Once installed, the breaker can be switched on by moving the toggle lever to the upward position. In the event of a trip, the lever will move to the center or off position; investigate the cause of the fault before resetting the breaker.

What to consider before purchase

• Verify that the 25A rated current matches the requirements of your specific circuit load.
• Ensure the 3-pole configuration is compatible with your three-phase electrical system.
• Check the available space in your distribution board for DIN rail mounting.
• Confirm that the 6kA breaking capacity is sufficient for the prospective short-circuit current at the installation point.

Usage recommendations

Regularly inspect the circuit breaker for any signs of physical damage or discoloration. It is recommended to perform a functional test periodically to ensure the tripping mechanism remains responsive and effective.