• thermistor motor protection relay
• 5 selectable functions
• up to 6 PTC-sensors in series switchable test function (without sensor connected)
• probe short and/or open circuit detection automatical, manual or external reset selectable
• Alarm memory function
• LED indicators for power supply, over temperature, short circuit, alarm, output relay status, start and reaction timer
supply voltage variation
nominal voltage -20%..+10%
frequency range
48 - 63 Hz
duty cycle
100%
repeat accuracy
<1%