Description
Non-invasive current sensing without service power interruption.
GoodWe GM1000 is a single-phase smart energy meter with a pre-wired split-core current transformer, engineered to deliver high-precision real-time power data to GoodWe hybrid inverters for dynamic self-consumption and zero-export control.
High-Precision Class 1.0 Measurement
Accurately tracks household grid import, solar export, and baseline energy consumption in real time.
Non-Invasive Split-Core CT
Clamps directly around the incoming main service cable without cutting wires or shutting down home power for hours.
High-Speed RS485 Inverter Communication
Direct data feed to GoodWe hybrid inverters to modulate solar charging and prevent unauthorized grid export.
Compact 1-Module DIN-Rail Housing (18 mm)
Occupies minimal space in domestic breaker boxes (standard 1U single-slot width).
More product details
Installing inline direct-connect meters requires cutting heavy incoming service conductors and de-energizing the whole house. The GM1000 features a snap-together split-core current transformer that clamps around the live cable in seconds.
- Split-core CT clamps around conductors up to 16 mm diameter without cutting cables.
- Measures currents up to 120 A with high linearity and minimal phase error.
- Pre-terminated CT leads connect directly to the meter's secondary terminal blocks.
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Real-time power telemetry for dynamic battery charging and export control.
The GM1000 samples domestic power flow continuously, broadcasting active power values over RS485 to the hybrid inverter to modulate battery charge and discharge rates. High-speed RS485 Modbus RTU communication with pre-configured GoodWe inverter addresses. Enables dynamic zero-export control and multi-tariff self-consumption scheduling. Low internal standby power draw (< 3 W) ensures negligible parasitic energy loss.
Takes one 120 A split-core clamp
The meter includes one 120 A : 40 mA current transformer. The split-core sensor wraps around the live conductor without opening the circuit.
Fits standard 35 mm DIN rail
A compact two-module enclosure occupies 36 mm in the distribution cabinet. Operating temperature spans minus 25 to 60 °C in IP20.
Talks over RS485 up to 1000 metres
RS485 serial communication delivers live voltage, current, and active power readings to GoodWe hybrid inverters.
Technical data
Essential single-phase telemetry engineered for dynamic solar self-consumption and export limitation.
Single-phase smart meter with split-core CT for high-precision domestic monitoring.
Engineered to measure real-time household electrical flows, the GM1000 pairs with GoodWe single-phase hybrid inverters to enable dynamic self-consumption and zero-export control. Its plug-and-play split-core current transformer allows non-invasive installation without disconnecting main electrical service wiring.
- High Precision
- Class 1.0
- Non-Invasive
- 1x Split CT
- Ultra-Compact
- 18 mm
- Fast Telemetry
- < 1s
Model and type
- Phase
- Single-phase
- Current transformers
- 1
- CT ratio
- 120A:40mA
- DIN modules
- 2 modules
- Ecosystem
- SEMS
Accuracy
- Active energy accuracy
- 1 Class
- Reactive energy accuracy
- 2 Class
- Voltage and current accuracy
- 1 Class
Electrical
- Operating voltage
- 110/230 Vac
- Voltage range
- 0.88Un-1.1Un
- Frequency
- 50/60 Hz
- Power consumption
- <3 W
Communication
- Protocol
- RS485
- Communication distance
- 1000 m
Environment
- Ingress protection
- IP20
- Operating temperature
- -25-+60 °C
Project fit
Where this model fits.
Scenarios that show which projects the GoodWe GM1000 (single-phase smart meter, 1 CT) belongs in, what to verify before quoting, and when another model is the better pick.
Single-Phase Residential Solar & Storage Installations (1 Grid Point)
Single-phase homes installing a GoodWe hybrid inverter (such as EM, ES, or DNS series) requiring standard grid-point power measurement.
Compact, inexpensive, and includes 1 split-core CT ready to clamp around the incoming phase line.
- Confirm this model against the adjacent rating in the same family
Documents
GoodWe smart meter datasheet, GM1000 / GM1000D / GM3000 (EN) GoodWe GM1000/GM1000D/GM3000 DatasheetProduct questions
Does the GM1000 require cutting the main incoming electrical cable?
No. It uses a non-invasive split-core CT. The included split-core current transformer snaps open and clamps around the main incoming Phase (L) wire without cutting any conductors or unbolting electrical service terminals.
What is the maximum distance for the RS485 communication cable to the inverter?
Up to 1,000 meters using shielded twisted-pair cable. Using standard shielded twisted-pair cable (STP, e.g., Cat5e/Cat6 or dedicated 24 AWG RS485 cable), the meter can be situated up to 1,000 meters away from the inverter with zero data corruption.