Rhomberg
Rhomberg AP221 1Ph Supply Monitoring Relay
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DIN rail mount.
Fail-to-safe design.
Combined overvoltage and undervoltage monitoring.
Monitoring of own supply voltage (single phase).
Separately adjustable setpoints: over-voltage, (5 to 20%) and, under-voltage (-5 to -20%).
Separately adjustable response times on trip & recovery (0.1 to 10 seconds).
Fixed hysteresis: 2%.
Adjustable start-up delay for disabling latching 0.1 to 10 sec.
Selectable latching (ie manual or auto reset).
LED indication of Relay ON and fault type.
5A DPDT relay output.
Supersedes P220P
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