Features:
- Combined over-voltage and under-voltage detection
- Adjustable response delay of 0.1 to 10 seconds on SP221
- Monitoring of own supply voltage
- High precision and repetitive accuracy
- Independant setting of over-voltage and under-voltage tripping points
- LED indication for type of fault and status of the relay
- Latching facility
- 10A SPDT relay output
Specifications:
AC: Supply voltage: 12, 24, 115, 230, 400, 415, 525V ±20%
Isolation (current input to power supply): 2kV
Power consumption: 3VA (approx), 6VA for 415, 525V (approx)
DC: Supply voltage: 12, 24, 48, 60, 110V ±20%
Isolation: No galvanic isolation
Power Consumption: 100mA (12, 24V), 30mA for 48V and higher.
Voltage Sensing:
Calibrated to respond to RMS of a sinusoidal waveform
Repetitive Accuracy: 1%
Hysteresis: 2% fixed (relative to its supply voltage)
Response Relay: SP220 – 1 second
SP221 – Adjustable from 0.1 to 10 seconds (other ranges on special order)
Latching disabled during power-up: approx 10 seconds
