27
Appendix: Technical Specifications
Input and Output Ratings
3 Galvanically
Isolated Voltage
inputs
120 V:
INPUT USING PT (up to 120V+20% line-to-line
voltage) Burden: <0.15 VA
690
V:
DIRECT INPUT (up to 690V +15% line-to-line
voltage) Burden: <0.5 VA
INPUT USING PT - Burden: <0.15 VA
3 Galvanically
Isolated Current
inputs
1 A:
INPUT VIA CT with 1A secondary output
Burden: <0.02 VA
Overload withstand: 2A RMS continuous, 50A
RMS for 1 second
5 A:
INPUT VIA CT with 5A secondary output
Burden: <0.1 VA
Overload withstand: 10A RMS continuous, 250A
RMS for 1 second
Voltage and Current Input
terminals
UL recognized
Maximum wire section: 4 mm
2
(10 AWG)
Optically Isolated
Communication Port
EIA RS-422 and RS-485 standards
Maximum wire section: 2.5 mm
2
(12 AWG)
2 Relay Outputs
Relay rated at 5A, 250 VAC/ 5A, 30 VDC
2 contacts (SPST Form A)
4 Optically Isolated Digital
Inputs
Dry Contact
Optically Isolated Analog
Output
4-20 mA default
0-20 mA (option)
±
1 mA (option)
Accuracy 0.5%, Non-linearity 0.2%
Load up to 510 Ohm for 20 mA
Load up to 10kOhm for 1 mA
Display
(optional)
3 high-brightness seven-segment digital LEDs
Power Supply
Galvanically isolated
Power supply (factory set)
120&230 V AC
and 110&220 V DC
option 12 V DC
option 24 V DC
option 48 V DC
85 - 265V AC 50/60 Hz
and 88 - 290V DC Burden 10 W
9.6 - 19 VDC
19 - 37 VDC
37 - 72 VDC
