Carlo Gavazzi ET112
Official manufacturer global verified Sept. 2, 2026
Identity
| category | smart_meters |
| manufacturer | Carlo Gavazzi |
| model | ET112 |
| oem_ordering_code | ET112-DIN.AV01.X.S1.X |
| product_family | Carlo Gavazzi ET112 (Victron-distributed) |
| product_status | active |
| region | global |
| sku | REL300100000 |
Electrical
| accuracy_class_active_energy | Class 1 according to EN62053-21 |
| accuracy_class_reactive_energy | Class 2 according to EN62053-23 |
| accuracy_current_voltage | ±0.5% RDG |
| base_current | 5 A |
| ct_ratio_options | Not applicable - direct connection |
| current_connection | Direct / Shunt (no CT) |
| display | No display - only an LED which blinks in case of active communication |
| frequency | 45 to 65Hz |
| insulation | 4000 VAC RMS between measuring inputs and digital/serial output |
| max_continuous_current | 100A, @ 50Hz |
| max_current_victron_spec | max 100A |
| measuring_category | Cat. III (overvoltage category) |
| minimum_current | 0.25A |
| nominal_voltage | 230VLN AC (AV0 option), 120 VLN (AV1 option); Victron ships the AV0 (230 VLN) variant |
| phases | 1-phase 2-wire |
| power_consumption | <= 1.0W, <= 8VA |
| rated_current | 5(100)A (direct connection) |
| refresh_rate | 750 ms (Victron selection guide); 1 sec data refresh (Carlo Gavazzi datasheet) |
| self_power_supply_range | 230VAC VL-N, -30% +20% (AV0) |
| temperature_drift | <=200ppm/°C |
Physical / mechanical
| dimensions_mm | 35 x 63 x 90 mm |
| din_modules | 2-DIN module |
| material | Noryl, self-extinguishing: UL 94 V-0 |
| screw_torque_measuring | Max. screw tightening torque: 2.8 Nm |
| screw_torque_other | Min./Max. screws tightening torque: 0.5 Nm |
| terminals_measuring_inputs | max. 25 mm2, min. 5 mm2 |
| terminals_other | 1.5 mm2 |
| weight | Approx. 160 g (packing included) |
Installation
| max_cable_length | The RS485 to USB interface cable between the GX device and the Energy Meter can be extended up to 100 meters; make sure that the extensions of the Data+ (orange) and Data- (yellow) wires form a twisted pair. |
| mounting | DIN rail |
| multiple_meters | To connect multiple Energy Meters, wire each meter to a separate RS485 to USB interface, which are then each plugged into a separate USB socket on the GX device. |
| rs485_wiring | Data+ orange wire to terminal 4; Data- yellow wire to terminal 5; GND black wire to terminal 6 |
Environment
| operating_temperature | -25 to +65 °C, indoor |
| relative_humidity | R.H. from 0 to 90% noncondensing @ 40°C |
| storage_temperature | -30°C to +80°C |
Interfaces & connectors
| bluetooth | No |
| ethernet | No |
| modbus_rtu | Yes - ModBus RTU (slave function); baud 9.6, 19.2, 38.4, 57.6, 115.2 kbaud; address 1 to 247 (default: 01); maximum 247 transceivers on the same bus |
| modbus_tcp | No |
| rs485 | Yes - RS485 Modbus port |
| ve_direct | No |
| zigbee | Optional via Victron Zigbee to USB converter (ASS300420200) and Zigbee to RS485 converter (ASS300420100); Venus OS v2.54 minimum for the new type Zigbee converters |
Protection
| ip_rating | Protection degree (front): IP20 |
Certifications
| standards | ['CE', 'EN62052-11 (Safety)', 'EN62053-21 (Metrology)', 'EMC according to EN62052-11'] |
Warranty & service
| summary | UNKNOWN |
Documents
manual-html
Victron Energy Meter ET112 manual - 3. FAQ
manual-pdf
{# Located but never retrieved: listed, but deliberately not linked, and it
backs no stored value. #}
Victron Energy Meters manual (shared, 113406) — located, not retrieved
oem-datasheet
Carlo Gavazzi ET112 Datasheet (ET112 DS ENG)
pricelist
Pricelist Victron 2026 Q1 USD C
selection-guide
Victron Energy Meter Selection Guide
Recorded conflicts
electrical.refresh_rate Review required
750 ms — https://www.victronenergy.com/upload/documents/Datasheet-Energy-Meters-Selection-Guide-EN.pdf (Victron selection guide)
1 sec — https://www.gavazziautomation.com/fileadmin/images/PIM/DATASHEET/ENG/ET112_DS_ENG.PDF (Carlo Gavazzi "Data Refresh 1sec")
Additional documented parameters
Recorded verbatim from the source; no schema field exists for these yet.
| Combining three ET112s for 3-phase | No. Use a real 3-phase meter. |
| Data Refresh | 1sec |
| Max. screw tightening torque (measuring inputs) | 2.8 Nm |
| Modbus address changeability | Since there is no display, the modbus address can no longer be changed on the meter. |
| Ordering code position AV0 | 230VLN AC - 5(100)A (Direct connection) |
| Ordering code position S1 | RS485 Modbus port |
| Temperature Drift | <=200ppm/°C |
| documented_relationship:gateway_device | {"to_manufacturer": "Victron Energy", "to_model": "GX device (Cerbo GX / Venus OS family)", "relationship_type": "gateway_device", "source": "Victron Energy Meter ET112 manual, 1. Introduction", "source_url": "https://www.victronenergy.com/media/pg/Energy_Meter_ET112/en/introduction.html", "confidence": "officially-verified", "notes": "\"The Victron ET112 is a standard device to measure the power and energy of a single-phase application. Its data will be displayed on a GX device and our VRM portal.\""} |
| documented_relationship:inverter_meter | {"to_manufacturer": "Victron Energy", "to_model": "ESS (MultiPlus / Quattro inverter/charger system)", "relationship_type": "inverter_meter", "source": "Victron Energy Meter manual, Features", "source_url": "https://www.victronenergy.com/media/pg/Energy_Meter_ET112/en/introduction.html", "confidence": "officially-verified", "notes": "Role 1: \"As a Grid meter and used as control input for an ESS System\". FAQ Q10: \"Energy Meters are intended to supplement a Victron Inverter/Charger in the system.\""} |