PZAK-1 8A ETI phase sequence loss and asymmetry relay

Product description

The asymmetry and phase loss sensor is a device that monitors the phase voltage of motors or other equipment. With its help, you can try to run them in open-phase or single-phase conditions, thus eliminating motor burnouts. It works on the basis of the phase voltage that occurs in the phase system. It also protects against phase loss.

The sequence function is designed to immobilize the motor. This is to protect it from unwanted faults. It is worth installing such a sensor in both large production machines and home installations. The power supply will be turned off sequentially when a change in phase voltage is detected after a few seconds.

Technical data:

• Depth 65 mm
• Number of changeover contacts 0
• Number of normally closed contacts 1
• Number of normally closed contacts 0
• Width 18 mm
• Height 90 mm
• Voltage measurement range 175 - 400 V
• Rated control voltage Us for AC 50 Hz 400 - 400 V
• Phase loss detection Yes
• Phase sequence control Yes
• Phase imbalance control Yes
• Electrical connection type Clamp terminal