MP820 Single Phase Motor / Pump Protection Relay

Features

• DIN rail mount.
• Underload sensing by measuring phase angle (eg. Protection against running dry)
• Overload sensing by measuring current amplitude (eg. Protection against blockages or shut valve)
• Unit automatically calibrates for underload and overload detection at the push of a button.
• Calibration reset for easy setting up of motor changeover.
• Direct in-line current sensing for motors up to 1.1kW.
• Direct interface with conventional current transformer for motors>1.1kW.
• Liquid Level Control.
• Adjustable restart timer on underload (ie running dry).
• Fixed start-up delay (3 seconds standard).
• Unit latches in de-energised state on overload fault only.
• LED indication of all fault conditions and all modes of operation.