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Motor monitoring relays protect the motor from overheating and minimise damage to the connected load. If a motor overheats it can catch fire, this is why it must be monitored and shut down in case of overload.
Manufacturer
Product Status
Mounting Type
Operating Voltage Max. Min 230 VAC 250 VAC 480 VAC Max 230 VAC 250 VAC 480 VAC
Contact Configuration Min 1CO 2CO Max 1CO 2CO
Protection Rating Min IP20 IP40 IP54 Max IP20 IP40 IP54
Cold Resistance Max. Min 1.5 kOhm 1.8 kOhm Max 1.5 kOhm 1.8 kOhm
Frequency Range Max. Min 60 Hz 65 Hz 100 Hz 200 Hz Max 60 Hz 65 Hz 100 Hz 200 Hz
Frequency Range Min. Min 2 Hz 10 Hz 45 Hz 50 Hz Max 2 Hz 10 Hz 45 Hz 50 Hz
Monitoring Functions
Operating Value of PTC Thermistor Min 3.1 kOhm 3.4 ... 3.8 kOhm 3 kOhm Max 3.1 kOhm 3.4 ... 3.8 kOhm 3 kOhm
Reset Value of PTC Thermistor Max. Min 1.65 kOhm 1.8 kOhm 1.98 kOhm Max 1.65 kOhm 1.8 kOhm 1.98 kOhm
Start Delay Min 10 ms 150 ms 350 ms 30 s 100 s Max 10 ms 150 ms 350 ms 30 s 100 s