MODBUS (RS485) Communication (optional).
Pulse/Limit Switch output (optional).
TRMS measurement.
3 Line 4 Digits ultra bright LED Display (up to 9999).
On site Programmable CT/PT Ratios.
User selectable CT Secondary 1A/5A.
User selectable PT Secondary from 100 VLL to 500 VLL.
Programmable Energy format & Energy rollover count.
Wide auxillary Power Supply which can accept any input between 60V – 300V AC/DC or 20-40 VAC or 20-60 VDC.
Application: ALPHA 20A+ measures important electrical parameters in 3 phase 4 Wire and 3 phase 3 Wire Network & replaces the multiple analog panel meters. It measures electrical parameters like AC Voltage, AC Current, Frequency, Active, Reactive, Apparent Power, Import ,Export Energy & many more.
Input Voltage
Nominal input voltage (AC RMS): Phase –Neutral 288.6V L-N, Line-Line 500V L-L.
Max continuous input voltage: 120% of rated value.
Nominal input voltage burden: < 0.3 VA approx. per phase.
System PT secondary values: 100VLL to 500VLL programmable on site.
System PT primary values: 100VLL to 692kVLL programmable on site.
Input Current
Nominal input current: 5A / 1A AC RMS.
System CT secondary values: 1A & 5A programmable on site.
System CT primary values: From 1A up to 9999A (for 1 or 5 Amp).
Max continuous input current: 120% of rated value.
Nominal input current burden: < 0.2 VA approx. per phase.
Auxiliary Supply
External Aux: 60V – 300V AC-DC. 20-40VAC, or 20-60VDC.
Higher Aux Nominal Value: 230 V AC/DC 50-60 Hz for AC Aux.
Lower Aux Nominal Value: 24V AC/48 V DC 50-60 Hz for AC Aux.
Frequency range: 45 to 65 Hz.
VA burden: < 5 VA Approx.
Overload Withstand
Voltage: 2 x rated value for 1 second, repeated 10 times at 10 second intervals.
Current: 20x rated value for 1 second, repeated 5 times at 5 min intervals.
Operating Measuring Ranges
Voltage Range With External Aux: 10… 120% of rated value.
VCurrent Range: 10 … 120% of rated value.
Frequency: 45…65 Hz.
Power Factor: 0.5 Lead … 1 … 0.5 Lag.
Dimensions and Weights
Bezel size: 96mm x 96mm DIN 43718. 114mm x 114mm ANSI
Panel cut-out: 92+0.8mm x 92+0.8mm DIN. Diameter 102mm ANSI.
Overall depth: 60mm.
Panel Thickness: 1-3mm for self clicking, 1–6mm for swivel screws.
Weight: 4500 gm. Approx.(with output option).
