FF LK-BZ-703K 3-Phase Modular LED Indicator Light with Protection Red/Yellow/Green 230V

The FF LK-BZ-703K is a professional 3-phase modular LED indicator light engineered for precise monitoring of electrical circuits in distribution boards. This compact device features three distinct color-coded LED indicators—red, yellow, and green—providing immediate visual confirmation of phase presence. Designed for 230V systems, it integrates built-in protection to ensure reliable performance and long-term durability in both industrial and residential electrical environments.

Advantages

The primary benefit of this modular indicator is its ability to provide clear, real-time status updates for each phase of a three-phase electrical system. By utilizing energy-efficient LED technology, the device offers high visibility with minimal power consumption and extended operational life. The modular design allows for seamless integration into standard DIN-rail distribution boards, saving space while maintaining a clean and organized electrical panel layout. Furthermore, the inclusion of integrated protection enhances the safety and reliability of the monitoring process, reducing the risk of component failure.

Suitable for

• Monitoring phase presence in three-phase electrical distribution boards
• Industrial automation control panels
• Residential electrical installations requiring phase status feedback
• Electrical maintenance and diagnostic setups

When it may not be suitable

This device is specifically designed for 230V AC systems and should not be used in DC circuits or systems exceeding the specified voltage ratings. It is not intended for outdoor use unless housed in an appropriately rated, weather-protected enclosure.

Key specifications

• Operating voltage: 230V AC
• Indicator colors: Red, Yellow, Green
• Mounting type: Modular DIN-rail
• Technology: LED
• Phase monitoring: 3-phase

How to use

The device should be installed by a qualified professional in accordance with local electrical safety regulations. It is designed to be mounted onto a standard DIN rail within an electrical distribution cabinet. Connect the input terminals to the corresponding phases of the electrical supply. Once correctly wired, the LEDs will illuminate to indicate the presence of voltage on each respective phase. No further configuration is required for standard operation.

What to consider before purchase

• Ensure your electrical system operates at the required 230V specification
• Verify available space on your DIN rail within the distribution board
• Confirm that the installation environment is dry and protected from extreme temperatures

Usage recommendations

Regularly inspect the indicator lights during routine maintenance to ensure all phases are active and the LEDs are functioning correctly. Avoid exposing the unit to excessive moisture or dust to maintain optimal performance.