KRIWAN INT69 F Diagnose BASIC pump protection relay
The INT69 F Diagnose BASIC is a compact protection relay in a 22.5 mm DIN-rail housing, used mainly for submersible pumps and agitators. It monitors the motor temperature, a second temperature point (bearing, winding or mechanical seal) and the leakage (moisture) electrodes of the pump. When a limit value is exceeded, the pump is switched off through two potential-free changeover relays.
The run detection input records operating hours and switching cycles in the internal memory, so a service interval can be monitored as well. Operating and fault data are kept in a non-volatile memory. They can be read out, and the relay can be parameterised, with the KRIWAN INTspector app through a USB or Bluetooth gateway.
Main features
- Motor temperature input: PTC, Pt100, Pt1000 or bimetal
- Second temperature input: PTC, Pt100, Pt1000 or bimetal
- Leakage monitoring by resistance (conductance) measurement between electrodes
- Run detection: operating hours, switching cycles, service interval
- Event memory with the last 100 events, with date and time
- 2 changeover relays that can be assigned to the inputs (relay 1 always protects the motor temperature)
- Reset button, external reset input and mains reset
- Status shown by an LED blink code
- Diagnostic port (DP) for the INTspector app; Modbus connection through the INT600 DM gateway
Versions
| Article number | Supply voltage |
|---|---|
| 20 A 712 P081 | 24 V AC/DC, 50/60 Hz |
| 22 A 712 P081 | 100–240 V AC, 50/60 Hz |
Technical data
| Power consumption | 5 VA (24 V version: 5 VA / 3 W) |
| Ambient temperature | -20 … +60 °C |
| Humidity | 0–95 % r.h., non-condensing |
| PTC measuring circuit | 1–9 PTC sensors in series (DIN VDE V 0898-1-401) |
| Pt100 / Pt1000 measuring range | -50 … +300 °C, resolution 1 K |
| Leakage measuring range | 5 kΩ … 1.5 MΩ |
| Run detection | 60–480 V AC phase-phase, 20–100 Hz, suitable for frequency converters |
| Relay contacts | 1 changeover contact each, max. 240 V AC / 2.5 A (C300), min. 24 V / 20 mA |
| Max. sensor cable length | 100 m (run detection: 3 m) |
| Degree of protection | IP20 |
| Connection | Push-in spring terminals, 0.2–2.5 mm² |
| Mounting | 35 mm DIN rail (EN 60715), 22.5 mm housing |
| Weight | approx. 200 g (24 V) / 250 g (100–240 V) |
| Approval | cURus (UL) |
Typical applications: submersible wastewater pumps, pumping stations, flood control pumping stations, agitators and mixers.
Technical data sheet (PDF, KRIWAN)
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