SP221 1Ph Voltage Monitor AC

Features

• 11-pin plug-in.
• 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%).
• Adjustable response time on trip (0.1 to 10 seconds).
• Fixed hysteresis: 2%.
• Fixed start-up delay for disabling latching 10 sec.
• Selectable latching (ie manual or auto reset).
• LED indication of Relay ON and fault type.
• 10A SPDT relay output.
• Supersedes SP220.
• Requires optional S3-B 11-pin base.