Power indicator lamp LK-703R 1/3S 3x230V 3xLED red

Phase monitoring and power supply indication – LK-703R lamp

The LK-703R control lamp is a reliable device used for optical signaling of the presence of voltage in individual phases of a 3-phase network. Mounted on a 35 mm rail, it is ideal for electrical switchboards where precise information about the power supply status is crucial. Its compact size – only 1/3 module (6.2 mm) – allows for efficient use of space.

Signaling and application

Equipped with three red LEDs, the LK-703R lamp clearly indicates which phases are energized. This is particularly important when commissioning installations, diagnosing failures or performing maintenance work. Thanks to this, both installers and end-users can quickly and easily verify the power supply status of individual circuits. It does not require additional safety devices.

Technical specifications and installation

The device operates at a supply voltage of 3x230V+N and consumes only 0.15 W per channel. The rated current is 1 mA/channel, which minimizes the impact on the circuit. Connection is made using screw terminals with a cross-section of 2.5 mm², which should be tightened with a torque of 0.4 Nm. The lamp is adapted to work in a wide temperature range – from -30°C to +50°C – which ensures its reliability in various environmental conditions.

The LK-703R lamp is characterized by a supply voltage of 3x230V+N and uses three red LEDs to monitor the power supply. The rated current per channel is 1 mA, and the connection is made using screw terminals with a cross-section of 2.5 mm², tightened with a torque of 0.4 Nm. The power consumption is 0.15 W per channel, and the operating temperature is in the range of -30°C to +50°C. The device has dimensions of 1/3 module (6.2 mm), is mounted on a 35 mm rail and has a protection degree of IP20.

Thanks to its simple construction and intuitive operation, the LK-703R lamp is a practical solution for every electrician and user who cares about the safety and proper functioning of the electrical installation.