Appendix: Technical Specifications 43
Appendix: Technical Specifications
7. ions
Input and Output Ratings
3 voltage
inputs
690 V:
(standard)
DIRECT INPUT - Nominal: 690V line-to-line
voltage, 790V maximum; 400V line-to-neutral,
460V maximum - Burden: <0.5 VA
INPUT USING PT - Burden: <0.15 VA
120 V:
(optional)
INPUT USING PT - Nominal: 120V line-to-line
voltage, 144V maximum - Burden: <0.1 VA
3 current
inputs
5A:
(standard)
(galvanically
INPUT VIA CT with 5A secondary output
Burden: 2.5 to 4 mm
2
(13-11 AWG) wire from CT
Overload withstand: 15A RMS continuous, 250A
RMS for 1 second
isolated)
1A:
(optional)
INPUT VIA CT with 1A secondary output
Burden: 2.5 to 4 mm
2
(13-11 AWG) wire from CT
Overload withstand: 3A RMS continuous, 50A
RMS for 1 second
Voltage input terminals
UL recognized E129258
Maximum wire section: 4 mm
2
(10 AWG)
Optically isolated
communication port
EIA RS-485 standard
Maximum wire section: 2.5 mm
2
(12 AWG)
Relay output
Relay rated at 3A, 250 V AC / 3A, 30 V DC /
0.5A, 110 V DC
Maximum wire section: 1.5 mm
2
(14 AWG)
2 contacts (SPST Form A)
Display
3 windows high-brightness 7-segment digit LEDs
3 color LED bar graph 40-110%
Power Supply
Galvanically isolated
power supply (factory
set) 120 or 230 V AC
Maximum wire section: 1.5 mm
2
(14 AWG)
88-138V AC or 176-265V AC; 50/60 Hz;
Burden: 5 VA
Environmental Conditions
Operating temperature
-20°C to +60°C (-4°F to +140°F)
Storage temperature
-25°C to +80°C (-13°F to +176°F)
Humidity
0 to 95% non-condensing