Power indicator protected by LKM-09-40 fuses EXT10000318

Safety and power control – LKM-09-40 indicator

The LKM-09-40 power indicator is a reliable device that not only signals the presence of voltage in the network but also provides additional protection against the effects of overloads and short circuits. The construction with built-in fuses is a simple yet effective solution for installers and users who value safety and easy diagnostics. The device will work both in home installations and in more demanding industrial applications.

Functionality and application

The LKM-09 module is designed to visualize the presence of supply voltage in each phase. Thanks to this, you can quickly identify the lack of voltage on a specific phase, which greatly facilitates the location of faults. Moreover, the indicator can act as a protection for sensitive control and measurement equipment, such as energy monitors, roller shutter controllers or bistable relay sections. The fuses used protect against the effects of overvoltage and overloads, and their blowing causes the LED indicating the presence of voltage to go out – a clear warning signal for the user.

Construction and mounting

The device occupies only 3 modules on a TH-35 rail, allowing for easy mounting in electrical switchboards. Screw terminals allow connection of wires with a cross-section of up to 2.5 mm², ensuring a solid and safe connection. It is important to remember to limit the protection current to a maximum of 6.3 A – exceeding this value may affect the effectiveness of protection. Thanks to this simple solution, diagnostics become faster and more precise, and replacing the fuse restores the device to full efficiency.