Carlo GavazziEM111-DIN.AV8.1.X.S1.PF.BSingle-Phase 1-Module DIN-Rail Energy Meter, 230 V L-N, 5(45) A Direct, RS485 Modbus, Bidirectional MID Class B

Product Description

What this part is:

Carlo Gavazzi EM111 single-phase energy analyser in a 1-module DIN-rail housing, 17.5 mm wide. It meters active and reactive energy on a 230 V line-to-neutral circuit with the load current passing directly through the meter, and reports over RS485 Modbus RTU. Backlit 7-digit LCD with a touch keypad. Unit Quantity: 1 Pc.

Decoding the designation:

EM111-DIN — single-phase analyser, DIN-rail housing, 1 module.

AV8 — 230 V L-N AC, 5(45) A direct connection, rated 32 A primary.

1 — 1-phase, 2-wire system.

X — self powered from the measured voltage, no auxiliary supply.

S1 — RS485 Modbus RTU port (M1 is M-Bus, O1 a pulse output).

PF — certified to the MID Directive, Modules B and D, usable for fiscal metrology.

B — bidirectional: imported and exported energy on separate registers, with only the total positive register MID certified.

Specifications:

System: 1-phase, 2-wire. Nominal Voltage: 230 V L-N AC, −30% +20%. Rated Primary Current: 32 A. Current: Ib 5 A, Imax 45 A, Imin 0.25 A, direct connection. Maximum Current: 45 A with a 6 mm² conductor. Start-up Current: 20 mA. Start-up Voltage: 161 V L-N. Active Energy: Class 1 per EN62053-21, Class B per EN50470-3. Reactive Energy: Class 2 per EN62053-23. Current/Voltage Accuracy: ±0.5% of reading. Performance: IEC/EN61557-12 class 1 active power, class 2 active energy.

Registers: kWh and kvarh imported and exported separately, kWh+ on two tariffs. Instantaneous Values: kW, kvar, V, A, PF, Hz, kW demand and demand peak. Communication: RS485 Modbus RTU slave, 9.6 / 19.2 / 38.4 / 57.6 / 115.2 kbaud, address 1 to 247, up to 247 transceivers per bus, 1 s data refresh. Default Modbus Address: 01. Default Baud Rate: 9.6 kbaud. Default Parity: none. Maximum RS485 Run Without Repeater: 1000 m. Demand Integration Time: 1 to 30 minutes, default 1 minute. Digital Input: 1, volt-free contact, for tariff switching. Front LED: 1000 imp/kWh (AV8). Sampling: 4096 samples/s.

Insulation: 4000 V AC RMS for 1 minute; overvoltage category III. Operating Temperature: −25 to +55 °C (PF option, standard suffixes). Protection: IP51 front, IP20 terminals. Power Consumption: ≤1.0 W, ≤8 VA. Weight: approx. 80 g.

Dimensions and mounting:

Housing: 17.5 x 63 x 91.5 mm (W x D x H), 1 DIN module, PBT self-extinguishing UL 94 V-0. Measuring terminals: 6 mm² max, 1.1 Nm. Other terminals: 1.5 mm², 0.4 Nm. Sealing covers are part of the standard product. The B measurement option lights a fixed orange LED when the current direction is reversed.

Compatibility and replacement:

The suffixes are the part number. AV5 is the 5(6) A CT-input version and MV5 the 333 mV current-sensor version, both for external sensors. AV7 is the 120 V variant. M1 and O1 replace the RS485 port with M-Bus or a pulse output. The .PF.A version sums both current directions into one certified register. The 2-DIN EM112 covers 100 A direct and the 3-DIN EM330/EM340 are three-phase; these are related models.

Frequently asked questions:

What communication does the EM111-DIN.AV8.1.X.S1.PF.B use?

RS485 Modbus RTU slave, 9.6 to 115.2 kbaud, default address 01 at 9.6 kbaud.

What voltage and current does it measure?

230 V line-to-neutral AC, 5(45) A direct connection, 32 A rated primary.

Is it MID certified?

Yes, the PF option is certified to the MID Directive, Modules B and D; the B option records import and export on separate registers.