Voltage Inputs

• Measurement Voltage: 90 to 300 Vac line-to-neutral, 50/60 Hz
• Control Power: 90 to 277 Vac line-to-neutral, 50/60 Hz, 8 VA

Accuracy

• Power/Energy: IEC 62053-21 Class 0.5, ANSI C12.20 class 0.5
• Voltage: ±0.5% of reading 90 to 277 V line-to-neutral
• Current: ±0.5% of reading from 2% to 100% full scale

Operation

• Sampling Frequency: 2560 Hz
• Update Rate: 2 seconds (both panels)
• Overload Capability: 22 kAIC

Communication

• Physical Interface: DIP switch-selectable 2-wire or 4-wire, RS-485
• Protocols Supported: Modbus RTU
• Address: DIP switch-selectable address 1 to 247 (in pairs of 2)
• Baud Rate: DIP switch-selectable 9600, 19200, 38400
• Parity: DIP switch-selectable NONE, ODD, EVEN

Terminal Block Torque

• Removable Connectors: 4.4 to 5.3 in-lb (0.5 to 0.6 N-m)

Operating Conditions

• Operating Temp Range: 0 to 60°C (32 to 140°F) (<95% RH non-condensing)
• Storage Temp Range: -40 to 70°C (-40 to 158°F)
• Altitude of Operation: 3000 m
• Mounting Location: Indoor use, dry location

Warranty

• Limited Warranty: 5 years

Compliance Information

• Agency Approvals: UL508 open type device, IEC/EN61010-1
• Installation Category: Cat III, pollution degree 2