Thermal Overload Relay For Single Phase Motor

Thermal overload relays are economic electromechanical protection devices for the main circuit.

Thermal overload relay for single phase motor. However if motors are designed with a service factor which is then shown on the nameplate eg. Offer reliable protection for motors in the event of overload or phase failure. Dol starter control and power wiring by using a fuse contactor overload relay motor. The thermal overload relay can make up a compact starting solution together with contactors.

The thermal overload relays are three pole relays with bimetal. Motor load phase. The devices have trip class 10. Overload relay is a device that can protect a motor from overloads phase failure and phase imbalances.

Based on the principle of operation they are classified into thermal and electronic overload relay. Banking on the skills of our talented team of professionals we are instrumental in presenting a wide assortment of single phase overload relay. The t16 thermal overload relays are economic electromechanical protection devices for the main circuit. Easy and simple wiring diagram to make you learn easily watch the vid.

Our esteemed clients can avail these products at feasible rates. If the motor is connected in star 440 v 60 hz the overload relay then has to be set to 3 1 a. For example an overload relay can trip without a circuit breaker tripping. This single phase overload relay is made using optimum quality material and modern machine.

Single phase motor overload protection previously we discussed what a magnetic motor starter is a contactor and an overload relay. Eaton offers a wide range of overload relays to provide full motor protection. 1 15 the set current for the overload relay can be raised by 15 compared to full load current or to the service factor amps sfa which is normally indicated on the nameplate. Overload relays protect the motor.

The overload relay types include fixed bi metallic interchangeable heater bimetallic and electronic. Single phasing also causes overload thermal of the motor. More specifically circuit breakers and fuses are designed to detect when there is too much current in the circuit while overload relays are designed to detect if a motor is overheating and will open the circuit if the motor gets too hot. When one phase of the supply is out of service the remaining two phases draw more current to maintain the required load torque and this leads to overheating of the motor.

Flexible mounting ensures that they can be installed on a contactor panel or separate enclosure.