Datasheet

Perfect Welding / Solar Energy / Perfect Charging

FRONIUS SMART METER WR

Bi-directional energy meter for feed-in management

and energy consumption monitoring

TECHNICAL DATA FRONIUS SMART METER WR

Introducing the Fronius Smart Meter WR, a bidirectional energy meter. Thanks to its high accuracy and fast communication

speed via Modbus RTU, the meter is suitable for dynamic feed-in management and grid-tied zero export PV systems. Together

with Fronius Solar.web monitoring, the Smart Meter offers a detailed overview of a home or business’ energy consumption.

FRONIUS SMART METER WR

100-600V - 3

Operating voltage range (line to line) 85 - 690 V

Frequency 45 - 65 Hz

Connections Euroblock style pluggable terminal blocks (12 AWG / 2.5 mm²)

Self-consumption 1.75 W

Maximum rated apparent power 3.75 W

Accuracy ± 0.5 % (see manual for details)

Mounting

Indoor: Wall-mounted

Outdoor: If mounted inside an electrical enclosure that is rated NEMA 3R or 4 / IP 66

Temperature range -40°C to 80°C

Dimensions (H x W x D) 6.02 in. × 3.35 in. × 1.50 in. (153 mm × 85.1 mm × 38.0 mm)

Weight 233 g (8.2 oz)

Interface to inverter Modbus RTU (RS 485)

Certiﬁ cates / listings

UL 61010-1, CAN/CSA-C22.2 No. 61010-1-04, IEC 61010-1, EN 61326: 2002, EN61000-4-2, EN61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6, EN

61000-4-11, FCC Part 15 Class B, EN 55022: 1994 Class B

Current transformers Primary: 1 – 6000 A / secondary: use only CTs with voltage output 333 mV

Supported grid types

1-phase 3-wire (split-phase), 1-phase 2-wire without N, 3-phase

4-wire (WYE), 3-phase 3-wire without N (Delta), 3-phase 4-wire delta (High-leg delta / stinger grid)

Power supply Self-supplied, No external power supply required

CONFIGURATION DIAGRAM

FRONIUS

INVERTER

PV GENERATOR

FRONIUS

SMART METER WR

HOUSEHOLD

LOADS

GRID

Modbus RTU

1-phase / 3-phase

Communication path

Power path

EN v01 Jul 2022

Text and images correspond to the current state of technology at the time of printing. Subject to modifications.

Introducing the Fronius Smart Meter WR, a bidirectional energy meter. Thanks to its high accuracy and fast communication