Power supply indicator lamp with protection LK-BZ-703G 1/3S 3x230V 3xLED GREEN

Phase monitoring and power supply indication

The LK-BZ-703G control lamp is a reliable device designed for optical signaling of voltage presence in 3-phase networks. Thanks to the built-in green LEDs, it allows for quick and easy identification of the power supply status of individual phases. This solution finds application both in industrial installations and in commercial and residential buildings, where visual control of the circuit status is crucial.

Safety and functionality in a compact housing

The device is characterized by compact dimensions – it occupies only 1/3 of a module on a 35 mm rail, which allows saving space in the switchgear. Built-in fast-blow fuses (500 mA/channel, breaking capacity 100 A @250 V AC) provide additional protection against overload and short circuit, eliminating the need for additional protective modules. This is particularly important in circuits with limited rated current. Mounting on a standard TH35 rail is simple and intuitive.

Technical specifications and operating parameters

The lamp operates at a supply voltage of 3×230 V+N, and its power consumption is only 0.15 W per channel. The rated current per channel is 1 mA. Screw terminals with a cross-section of 2.5 mm² ensure a secure connection of the wires, and the tightening torque of 0.4 Nm guarantees the stability of the connections. The device maintains full functionality in a wide temperature range – from -30°C to +50°C – which makes it suitable for use in various environmental conditions. The IP20 degree of protection provides protection against finger contact and access to dangerous components.

The lamp offers clear and readable indication of voltage presence in each phase thanks to three green LEDs. Built-in fast-blow fuses protect against overload and short circuit without the need for additional elements. Mounting on a 35 mm rail facilitates integration with existing electrical infrastructure. The compact width of 1/3 module (6.2 mm) saves space in the switchgear, and the wide operating temperature range (-30°C to +50°C) ensures reliable operation in various environmental conditions.