Three-phase electronic meter QOLTEC 50989, 400 V, 100 A

Three-phase electronic meter QOLTEC 50989, 400 V, 100 A is an DIN-rail compatible energy meter designed to measure active electrical energy in three-phase low-voltage installations. The meter operates at a nominal system voltage of 400 V and supports currents up to 100 A, providing clear numeric readouts for consumption monitoring in residential, commercial, or light industrial distribution panels. Its compact electronic enclosure facilitates straightforward mounting and wiring, while offering reliable metering for budgeting, energy accounting, and load analysis.

Advantages

This three-phase electronic meter offers accurate active energy measurement across three phases with stable performance under normal operating conditions. The compact form factor simplifies installation in standard distribution boards and the digital display enables easy reading of cumulative consumption values. The device is suitable for continuous use and provides consistent measurement useful for billing, energy management and basic troubleshooting of imbalanced loads.

Suitable for

• Residential apartment blocks and multi-dwelling units
• Small commercial premises and retail outlets
• Light industrial applications where three-phase metering up to 100 A is required
• Utility sub-distribution and tenant submetering

Key specifications

• System type: three-phase electronic energy meter
• Nominal voltage: 400 V
• Nominal current: up to 100 A
• Measurement: active electrical energy (kWh)
• Mounting: DIN-rail compatible enclosure for panel installation
• Display: digital numeric readout for cumulative consumption
• Operating environment: indoor electrical distribution panels

How to use

Mount the meter on a standard DIN-rail inside the distribution board, ensuring the power is disconnected before wiring. Connect the three phase conductors and the neutral according to local wiring practices and regulations, and secure the meter's terminals. After restoring supply, verify the digital display for correct phase sequence and expected idle readings. Record initial meter values for baseline consumption monitoring and periodically check connections and readings as part of routine maintenance.

Usage recommendations

Install and service the meter only by a qualified electrician following local electrical codes. Use the meter within its rated voltage and current limits, and protect it with appropriate upstream overcurrent protection. For accurate accounting, periodically compare meter readings with any secondary measurement devices and inspect for signs of overheating or loose connections.