Siemens 5SL6525-7 Miniature Circuit Breaker 1+N Pole C 25A 6kA

The Siemens 5SL6525-7 is a high-quality 1+N pole miniature circuit breaker engineered to provide dependable protection for electrical circuits in both residential and commercial environments. This device is specifically designed to safeguard electrical installations against the risks of overloads and short circuits, ensuring the integrity of your power distribution system. With its compact modular design, it integrates seamlessly into standard distribution boards, offering a reliable solution for maintaining electrical safety and operational continuity.

Advantages

This miniature circuit breaker stands out due to its robust construction and precision engineering, which are hallmarks of the Siemens brand. The 1+N configuration allows for the simultaneous disconnection of both the phase and neutral conductors, providing an extra layer of safety during maintenance or fault conditions. Its C-characteristic makes it highly versatile for various loads, effectively managing inrush currents while providing rapid response times during electrical faults. The 6kA breaking capacity ensures that the device can safely interrupt significant fault currents, protecting downstream equipment and wiring from damage.

Suitable for

• Residential electrical distribution boards
• Commercial office power circuits
• Protection of lighting and general-purpose socket outlets
• Small-scale industrial electrical installations

This circuit breaker may not be suitable for applications requiring a different tripping characteristic, such as B or D curves, which are intended for specific types of loads like highly inductive motors or sensitive electronic equipment. It is also not designed for DC power systems and should strictly be used within AC electrical installations.

Key specifications

• Number of poles: 1+N
• Rated current: 25A
• Tripping characteristic: C
• Breaking capacity: 6kA
• Installation type: DIN rail mounting

To use this miniature circuit breaker, it must be installed by a qualified electrician into a compatible DIN rail distribution board. The device is snapped onto the rail, and the electrical conductors are secured into the terminal clamps according to the specified torque settings. Once installed, the toggle switch can be used to manually energize or de-energize the circuit, and the device will automatically trip to the off position if an electrical fault is detected.

What to consider before purchase

• Verify that the 25A rated current 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 the 1+N pole configuration is appropriate for your specific wiring system.
• Check that the DIN rail space is available in your distribution board.

Regularly inspect the circuit breaker for signs of physical damage and ensure that the terminal connections remain tight to prevent overheating. If the breaker trips, investigate the cause of the overload or short circuit before attempting to reset the device.