Outstanding Thermistor Relay Wiring Diagram
The rt7 is not a replacement for an overload relay.
Thermistor relay wiring diagram. For alarm and trip control of a 3 phase ac induction motor. Must to see how to use an lcd display with arduino. You can use them to turn off a large motor if gets too hot or turn on a heater if the.
The figure 6 shows a typical connection of two thermistor protection relays and their associated groups of thermistor sensors. Sirius 3rn2 thermistor motor protection relay manual 10 2016 a5e34244868002a rs aa 001 7 introduction 1 1 1 required basic knowledge basic knowledge of low voltage industrial controls is required to understand this manual. Thermistors are really useful with 5v relays.
Instead it is additional protection from damaging heat build up in the motor. Atex suitably selected and adjusted devices of this type are necessary for the safe operation of. L1 l2 l3 a1 a2 11 12 control output input range output method relay output 250 vac 5 a resistive load 30 vdc 5 a resistive load ptc thermistor common open closed 14 t1 t2 y1 ptc thermistor input b power supply voltage 100 to 240 vac 24 vac dc no polarity k8ak ts.
There is no polarity for the dc voltage input. Abb s cm msx xx range of thermistor motor protection relays monitor the winding temperature of motors. 48 63hz galvanic isolated by transformer 24v dc supply variation.
0 85 1 15 x un isolation. Thermistor protection relay tpr is designed for mounting inside a control cubicle or motor control center mcc usually on standard terminal rail. I the 24v dc units are not isolated between monitored and supply input.
A temperature controlled relay circuit. Rt7 e1 and rt7 e2 thermistor protection relays are designed to keep that from happening. The thermistor motor protection relay cm mss monitors the winding temperature and thus protects the motor from overheating overload and insufficient cooling in accordance to the product standard iec 60947 8 control units for built in thermal protection ptc for rotating electrical machines.