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Installation Guide
Power Monitoring
E31E Series
TM
INPUTS
Input Power
100-277VAC, 50/60 Hz, 15VA max.
Terminal Block Torque
4.4 to 5.3 in-lb (0.5 to 0.6 N-m)
Wire Size
up to 12 AWG
AUXILIARY INPUTS
Terminal Block Torque
3.5 to 4.4 in-lb (0.4 to 0.5 N-m)
Wire Size
up to 14 AWG
ACCURACY
Power/Energy
IEC 62053-21 Class 1, ANSI C12.1-2008
(1% System accuracy includes both the E31E main unit and 50A or 100A
branch current sensors)
Voltage
±0.5% of reading 90-277VAC line-to-neutral
Current
±0.5% of reading
Minimum ON Current
50 mA
OPERATION
Sampling Frequency
2560 Hz
Update Rate
Modbus: ~1.8 seconds (both panels)
BACnet: 14 seconds
SNMP: 20 seconds
ETHERNET COMMUNICATION
Physical Interface
RJ45 connector with 10/100 Mbit Ethernet
Protocols Supported
Modbus TCP, BACnet IP, SNMP V2c
SERIAL COMMUNICATION
Physical Interface
2-wire RS-485
Serial Protocols Supported
Modbus RTU or BACnet MSTP
Address Range
Fixed at address 1 & 2 for Modbus RTU, 0-127 for BACnet MS/TP
Baud Rate
9600, 19200, 38400
Parity
Modbus RTU: NONE, ODD, EVEN
BACnet MS/TP: NONE (fixed)
Communication Format
8-data-bits, 1-start-bit, 1-stop-bit
Termination
2x3 position connector
Terminal Block Torque
4.4 to 5.3 in-lb (0.5 to 0.6 N-m)
Wire Size
up to 16 AWG
MECHANICAL
Ribbon Cable Support
4 ft. (1.2 m) flat ribbon cable ships standard with 42 and 84 current
sensor models;
up to 20 ft. (6 m) available
OPERATING CONDITIONS
Operating Temperature Range
0° to 60°C (32° to 140°F) (<95% RH noncondensing)
Storage Temperature Range
-40° to 70°C (-40° to 158°F)
Altitude of Operation
3000 m max.
COMPLIANCE INFORMATION
Approvals
UL508, EN61010-1
Specifications
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