CET Electric Technology
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Appendix F Technical Specifications
Voltage Inputs (V1, V2, V3, VN)
Standard Un
Range
Overload
Burden
Measurement Category
400VLN/690VLL
10V to 1.2Un
1.2xUn continuous, 2xUn for 1s
<0.02VA per phase
CAT III up to 600VLL
Current Inputs (I11, I12, I21, I22, I31, I32)
Standard In=5A/1A Auto-scale
Optional In=1A
Range
Starting Current
Overload
Measurement Category
Burden
Class 0.5S for 5A and Class 1 for 1A
Class 0.5S
0.1% to 200% In
0.1% In
2xIn continuous, 20xIn for 1s
CAT III up to 600VLL
<0.15VA per phase
Optional I4 Input (I41, I42)
In
Range
Starting Current
5A (5A/1A Auto-Scale)
0.1% to 120% In
0.1% In
Power Supply (L+, N-, GND)
Standard
Optional
Optional
Burden
Overvoltage Category
95-250VAC/DC, ±10%, 47-440Hz
20-60VDC
95-480VAC/DC, ±10%, 47-440Hz
<2W
CAT III up to 300VLN
Digital Inputs (DI1, DI2, DI3, DI4, DIC)
Dry contact, 24VDC internally wetted
1000Hz
1ms minimum
Digital Outputs (DO11, DO12, DO21, DO22)
Form A Mechanical Relay
5A @ 250VAC or 30VDC
Pulse Outputs (kWh, kvarh)
Type
Isolation
Max. Load Voltage
Max. Forward Current
Form A Solid State Relay
Optical
80V
50mA
Power Supply, Voltage Inputs,
RS485 and I/O
Operating Temp.
Storage Temp.
Humidity
Atmospheric Pressure
-25°C to 70°C
-40°C to 85°C
5% to 95% non-condensing
70 kPa to 106 kPa
Mechanical Characteristics
Panel Cutout
Unit Dimensions
IP Rating
92x92 mm (3.62”x3.62”)
96x96x88 mm
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