Description:
The AcuDC 301 is a revenue-grade DC meter designed specifically for EV fast-charging stations. It directly measures 60–1000Vdc and 3.9–650A through an integrated 650A shunt, recording voltage, current, power, energy and charge with 0.1% voltage and 0.2% current accuracy. It is certified to IEC 62053-41 Class 0.5 and EN 50470-4 Class C, carries MID and German Eichrecht (PTB) approvals, and outputs signed OCMF transaction data with electronic metrology sealing and cable loss compensation. Intended for charger OEMs and charge-point operators, it mounts on 35mm DIN rail and communicates via Modbus RTU and Modbus TCP/IP.
Key Features:
Purpose-built revenue-grade DC meter for EV fast-charging billing
Integrated 650A shunt: direct current measurement 3.9–650A, 0.2% accuracy (13–650A)
Direct voltage measurement 60–1000Vdc at 0.1% accuracy
IEC 62053-41 Class 0.5 and EN 50470-4 Class C compliant
MID 2014/32/EU, German Eichrecht PTB-A 50.7, PTB-8.51-MB10-Krypto and REA 6A certified
Signed data readouts in OCMF v1.4.1 JSON format
Two-tier electronic metrology seal with optional physical tamper protection
Adjustable cable loss compensation for voltage drop in charging cables
Transaction log of 61,440 charging sessions and Eich log of 6,000 metrological audit events in non-volatile memory
Modbus-RTU over RS485 and Modbus-TCP/IP over Ethernet
Technical Specifications:
Model: AcuDC 301-1000V-650A-P2 – 60-1000VDC direct voltage input, 3.9-650A integrated shunt, 24VDC supply
Voltage input: 60–1000Vdc direct, 0.1% accuracy, 0.001V resolution
Current input: 3.9–650A via built-in shunt; 0.2% accuracy (13–650A), 1% (6.5–13A); 0.001A resolution
Energy and charge accuracy: 0.5%; resolution 0.0001kWh / 0.0001Ah
Power supply (P2): 24Vdc, burden <2.7W
Communications: RS485 Modbus-RTU 2400–115200bps (2-wire shielded); Ethernet 10/100BaseT Modbus-TCP/IP
Logging: transaction log 61,440 records (OCMF v1.4.1 JSON); Eich log 6,000 records
Operating temperature: -35°C to 70°C; storage -35°C to 70°C; humidity 0–95%; altitude 0–2000m
Overvoltage withstand: 9600V impulse; 5kV RMS for 1 minute; measurement/overvoltage category II
Dimensions: 69mm W x 125mm H x 125mm D (2.7 x 4.92 x 4.92 in)
Mounting: 35mm DIN rail
Standards: IEC 62053-41 Class 0.5, EN 50470-4 Class C, MID 2014/32/EU, PTB-A 50.7, UL 61010-1, UL 61010-2-30
Lead Time:
1 - 3 Days.
