Temperature protection relay TCM series

DPCOAC/DCmotor

• up to 6 PTC sensors in series • fault latching function • probe short and/or open circuit detection • LED indicators for power supply and output relay The TCM is used with PTC sensors (DIN 44081) to provide permanent over temperature protection for motors and other equipment Up to 6 PTC's connected in series can beused with one TCM relay. On the applicationof the supply voltage the output relay pulls in.When the PTC sensors reach their nominaltemperature the TCM converts the suddenincrease of resistance into a signal whichcauses the output relay R to change over.The red LED F starts blinking. Care must be taken to ensure that long cablesconnecting PTC’s to T1 and T2 are shieldedotherwise external electro-magneticinfluences can interfere with the correctfunction of the sensor. Front plate located DIP-Switches are used to select either. supply voltage variation nominal voltage +10% / -15% frequency range 48 - 63 Hz duty cycle 100%