Indicator light, three-phase with protection (green) LK-BZ-3G

Three-phase control lamp with protection

The LK-BZ-3G control lamp is a reliable signaling device designed to monitor voltage in three-phase networks (3x230 V+N). Its design combines optical signaling with a built-in protection function, saving space in the distribution board and simplifying diagnostics. Green LEDs indicate the presence of voltage in each phase, and if the voltage is missing or the fuse blows, the LED goes out, signaling a problem.

Key features and applications:

• Three-phase signaling: Controls the presence of voltage in each of the three phases of the network.
• Built-in protection: Series-connected fuses (6.3 A) protect the circuit and eliminate the need for additional protective modules.
• Space saving: Compact design (1 module – 18 mm wide) ideal for tight distribution boards.
• Easy diagnostics: Clear LED signaling makes it easy to quickly detect power problems.
• Universal application: Suitable for both industrial and domestic installations.
• Additional circuit protection: The other end of the fuse is routed to the housing connector, allowing it to be used to protect other parts of the circuit.

Technical specifications:

The LK-BZ-3G control lamp has been designed with durability and reliability in mind. Made of high-quality materials, it provides stable operation in a wide temperature range (-25°C to 50°C). Mounting on a standard 35 mm (DIN) rail is simple and intuitive. The IP20 degree of protection provides protection against touching fingers and against the ingress of solid objects larger than 12.5 mm. The power consumption per phase is only 0.2 W, which minimizes the impact on energy consumption. Connection with screw terminals 2.5 mm² guarantees a secure connection of wires.

For installers:

Mounting the lamp is quick and easy – simply attach it to the DIN rail and connect the wires according to the diagram. The built-in protections save time and space in the distribution board, and the clear LED signaling makes it easier to diagnose faults.

For end users:

The LK-BZ-3G control lamp provides constant monitoring of the power supply status in a three-phase network, which increases safety and helps avoid unexpected failures. In the event of power problems, the LED not lighting up immediately informs you of the need to check the electrical installation or replace the fuse.