THERM RELAY ENH 24-240VAC/DC
Electric motors are significant investments, and losing them to overheating just is not an option. Sprecher + Schuh’s RT7-E1 and RT7-E2 Thermistor Protection Relays are designed to keep that from happening. The RT7 is not a replacement for an overload relay. Instead, it is additional protection from damaging heat build up in the motor.Installed in many of today’s electric motors are thermistors, which sense heat levels produced in the stator windings. If thermal levels exceed safe standards, thermistors send that information to the relay, which trips and switches off the motor. The RT7-E1 and RT7-E2 display a red LED to indicate a fault. The RT7-E1 and RT7-E2 also trip because of a short or open in the sensor measuring circuit. Each relay displays an open circuit alert with a 2 Hz red LED and a short circuit warning with a blinking red LED. The RT7-E2 stores a motor’s switching status in memory during power failures – a critical safeguard.
*Manual reset & Test Button
*Remote reset (external button)
*Storage of switching status in memory