Description
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 (ISET): 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˝)
Parameters
| Guarded values | <I (Undercurrent) |
|---|---|
| Power voltage | 12-240 V AC/DC (UNI) |
| Number of phases | 1 |
| Design | 1-MODULE |
| Guarded values | <I (Undercurrent) |
|---|---|
| Power voltage | 12-240 V AC/DC (UNI) |
| Number of phases | 1 |
| Design | 1-MODULE |