Three-phase electronic energy meter QOLTEC 50900 400V LCD 4P

Three-phase electronic energy meter QOLTEC 50900 400V LCD 4P is designed to measure active electrical energy in three-phase power systems. Configured as a 4-pole device with an LCD display, it provides meter readings suitable for residential and light commercial installations. The meter operates at a rated voltage of 400 V and presents consumption values on a clear liquid crystal display for straightforward monitoring and recording.

Advantages

The QOLTEC 50900 combines a digital LCD readout and a four-pole design to deliver accurate energy measurements in three-phase circuits. Its electronic measurement principle reduces moving parts compared with electromechanical meters, improving long-term stability and readout clarity. The compact form factor and standard mounting make it compatible with common electrical panels where a reliable digital meter is required for consumption tracking, billing, or diagnostics.

Suitable for

• Measuring active energy consumption in three-phase residential installations
• Monitoring consumption in small commercial premises and offices
• Use in distribution boards for billing and submetering
• Basic energy diagnostics and verification of supply usage

Key specifications

• Type: Three-phase electronic energy meter
• Rated voltage: 400 V
• Poles: 4P (four-pole configuration)
• Display: LCD for numeric consumption readout
• Measured quantity: Active electrical energy

How to use

Install the QOLTEC 50900 in the electrical panel following local electrical codes and safety practices. Connect the three-phase supply conductors to the appropriate terminals and ensure the neutral and protective connections are made as required. After wiring, the LCD display will show accumulated energy consumption; record readings as needed for billing or monitoring. Periodically check terminal tightness and display operation to ensure continued accurate measurement.

Recommendations for use

For reliable operation, have installation and any maintenance performed by a qualified electrician. Ensure the meter is mounted in a dry, ventilated location away from direct heat sources, and verify that the device polarity and phase sequence correspond to site wiring. Use the meter alongside appropriate overcurrent protection and adhere to national regulations when using readings for billing.