SP320 Frequency Monitoring Relay

Data Sheet

General Specifications

Features

• 11-pin plug-in.
• Fail-to-safe design.
• Selectable: Over-frequency, Under-frequency or Frequency Window Monitoring
• Start-up delay: 0 sec or 10 sec (selectable)
• Separately adjustable setpoints: over-frequency, (52 to 58 Hz), Under-voltage (42 to 48Hz).
• 60Hz & 400Hz nominal frequency versions available on request.
• Fixed hysteresis: 0.5Hz
• LED indication of Power ON, Relay ON, over frequency & under frequency.
• 10A SPDT relay output.
• Requires optional S3-B 11-pin base.