KRIWAN INT69 EXF2 Diagnose BASIC EX protection relay
The INT69 EXF2 Diagnose BASIC EX is the version of the INT69 F Diagnose relay for pumps and agitators that operate in a potentially explosive atmosphere (Ex zone). The relay itself is mounted in the control cabinet, outside the Ex zone, and monitors the temperature sensors and leakage electrodes of the pump. Two relays switch the pump off safely when a limit value is exceeded.
A reset button and an external reset input are available after an interlocked shutdown. The run detection input records operating hours and switching cycles, so a service interval can also be monitored. Operating and fault data are stored in a non-volatile memory and can be read out with the KRIWAN INTspector app.
Main features
- Temperature input 1: PTC (1–9 sensors in series)
- Temperature input 2: bimetal contact
- EMC-stable leakage monitoring by resistance measurement between electrodes
- Run detection: operating hours, switching cycles, service interval
- Non-volatile event memory, readable with the INTspector app
- 2 relays: temperature and leakage
- Reset button, external reset input and mains reset
- Diagnostic port (DP) for the INTspector app and Modbus gateway
- Tested to EN ISO 80079-37:2016, marking II (2) G [Ex h db] IIA
Versions
| Article number | Supply voltage |
|---|---|
| 20 A 713 P081 | 24 V AC/DC, 50/60 Hz |
| 22 A 713 P081 | 100–240 V AC, 50/60 Hz |
Technical data
| Power consumption | 5 VA |
| Ambient temperature | -20 … +60 °C |
| PTC measuring circuit | 1–9 PTC sensors in series (DIN VDE V 0898-1-401) |
| Bimetal circuit | for one NC contact, 24 V DC / 20 mA |
| Leakage measuring range | 10 kΩ … 1 MΩ |
| Run detection | 60–480 V AC phase-phase, 20–100 Hz, suitable for frequency converters |
| Relay contacts | 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) |
| Standards | EN 61000-6-2, EN 61000-6-3, EN 61010-1, UL 60730, EN ISO 80079-37:2016 |
Typical applications: inlet pumping stations and wastewater pumps installed in Ex zones, explosion-protected agitators.
Technical data sheet / operating instructions (PDF, KRIWAN)
Contact us for technical advice and a quote.
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