GOSSEN GMC Instruments EM2389 kolmivaiheinen energiamittari CT-liitännällä 5 A, MID-yhdenmukainen (U2389-V039)

Three-phase energy meter for indirect connection via current transformers, with a selectable 1 A or 5 A secondary current and MID compliance for active energy billing. The EM2389 measures active and reactive energy, power, voltage, current, frequency, and power factor, displayed on a backlit 7-digit LCD. It features RS485 Modbus RTU communication and two configurable S0 pulse outputs, all in a compact 4-module DIN rail housing.

Advantages

MID-compliant for active energy metering, enabling use in billing applications. Selectable CT secondary current (1 A or 5 A) provides flexibility for different transformer installations. RS485 Modbus RTU allows integration into energy management systems. Two S0 pulse outputs support remote monitoring and data logging. Backlit display ensures readability in low-light conditions.

Suitable for

• Sub-metering in commercial and industrial buildings
• Energy monitoring and management systems
• Billing applications requiring MID-compliant meters
• Integration with building automation via Modbus RTU

Key specifications

• Meter type: Three-phase energy meter
• Connection type: Indirect (via current transformers)
• Nominal current (CT secondary): 1 A / 5 A (selectable)
• Nominal voltage: 3x230/400 V AC (range: 3x57.7/100 V to 3x277/480 V AC)
• Accuracy class: Active energy Class 1 (EN 50470-3), Reactive energy Class 2 (EN 62053-23)
• MID compliance: Yes (for active energy)
• Display: LCD, 7-digit with backlight
• Measurement parameters: Active energy (kWh), reactive energy (kvarh), power (kW, kVA, kvar), voltage (V), current (A), frequency (Hz), power factor (PF)
• Communication interface: RS485 (Modbus RTU)
• Pulse output: 2x S0 (configurable)
• Mounting: DIN rail (4 modules)
• Frequency range: 50/60 Hz
• Operating temperature: -25 °C to +55 °C
• Protection class: IP51 (front), IP20 (terminals)
• Tariff support: Single tariff
• Power consumption: < 10 VA / 0.4 W per phase

Recommendations

Ideal for energy service companies and facility managers needing a reliable, MID-compliant three-phase meter with communication capabilities for modern energy management.