SE-G4

Protection functions and properties:

• Temperature monitoring
• The device locks out immediately when the preset motor winding temperature, discharge gas temperature or oil temperature is exceeded.
• Monitoring of rotation direction, phase sequence and phase failure
• The rotation direction is monitored from the 6th to the 10th second after compressor start (operating recognition). If the compressor starts with the wrong rotation direction during this time span, the protection device locks out immediately.
• In the event of a phase failure between the 6th and the 10th second after compressor start, the device opens the relay contact immediately and closes it again after 6 minutes.
  In case of 3 phase failures within 18 minutes or in case of 10 phase failures within 24 hours, the protection device locks out immediately.
• Single phase failure and cable short-circuit monitoring

• Replaces the SE-G1.
• The previous models are fully exchangeable, with the same functionality and terminal assignment. Dimensions and their integration into the control are also identical.
• Suitable for operation with soft starter with a maximum acceleration time of 2 seconds.
• Not suitable for operation with screw compressors!