PMR3-70 | Voltage monitoring relays with selectable range

• It is used for monitoring voltage, phase failure, sequence, and asymmetry in the 3-phase network.
• Wide range of monitored voltage with automatic selection of a low/ high range.
• Fixed overvoltage level (Umax), adjustable Undervoltage level (Umin).
• Adjustable time delay t2 (to eliminate short-term voltage drops and peaks).
• Adjustable time delay t3 (to eliminate short-term OK state).
• Adjustable asymmetry level with the option to turn it OFF.
• Measures true root mean square value of the voltage - TRUE RMS.
• Fault memory reset can be done by RESET button on the panel or by an external opening contact.

Others parameters

• Phase failure: Yes
• Phase sequence: Yes
• Adjustable overvoltage: No
• Adjustable undervoltage: Yes
• Asymmetry: Yes
• Monitored range: AC 3 x 190 - 500 V
• Output contact: 1x CO, 16 A
• Housing: 8-PIN into socket
• Power supply: monitored voltage
• Dimensions: 48 × 48 × 79 mm