PRI-35 | Undercurrent monitoring relay in 1P - AC by external CT

• Designed to protect a motor of a pump (submersible pump) against dry running.
• Monitor a current of a motor by means of current transformer (CT) X/5A.
• The ISET current level and the TRIP delay can be set with potentiometers.
• Indication of operating states by the red LED on the front panel.
• The power supply is not galvanically separated from the monitored current terminals, terminals A2, B2 are internally connected.
• Wiring between B1, S1 and B2, S2 must be insulated and not connected to any external voltage or ground.
• External current transformer X/5A must be used.

More information

• Voltage type: AC
• Monitored levels: undercurrent
• Voltage range: AC/DC 24 - 240 V (AC 50 - 60 Hz)
• Consumption (max.): 3.8 VA / 0.7 W
• Current range (I_SET): adjustable,  AC 0.5 - 5 A
• Output type: 1x changeover (AgNi), 16 A / AC1
• Design: 1-MODULE
• Dimensions: 90 x 17.6 x 64 mm (3.5˝ x 0.7˝ x 2.5˝)