DESC:TECHNICAL FIELD The present subject matter described herein, in general relates tolow voltage switchgear applicationsand more particularly, to molded case circuit breakers with the thermal magnetic release. BACKGROUND A circuit breaker is used to protect the device from overload & short circuit current. The circuit breakers like molded case circuit breaker (MCCB) can be functionally divided into 3 sub systems Viz., a mechanism, a contact system, and a release. The release part in molded case circuit breakers (MCCB) is responsible to give the circuit break command to the MCCB. There are 2 kinds of releases available in market, Viz., a thermo magnetic (TM) release and an electronic release. Both the release has to do the basic function of giving the circuit break command during overload & short circuit condition. Usually, the TM releases are used when cost is the concern. Electronic release delivers superior performance at a relatively higher cost. The TM release can be further sub divided into 2 sub parts, Viz., a thermal part and a magnetic part. The circuit breakers normally go through an overloading condition. Overload condition in simple terms can be explained as high current (though not as high as short circuit current) that can hamper the well being of the system in use. The system will be designed to carry a particular rated current for a period of time based on its duty cycle. If higher current (overload current) flows in the system for longer periods, then the system is not be able to dissipate the excess heat generated because of the overload and ultimately the system will break down. This is where the circuit break command comes into picture, the thermal part of the TM release issues this command for the circuit break in order to protectany kind of damage of the system. The thermal partusually consists of a heater, a bimetal, a calibration screw, and a shaft. The deflection of bimetal under high temperature is the phenomenon used in TM release to protect the circuit from overload current. A heater element is used, which will carry current and will provide the necessary heat to bimetal either by passing current through the bimetal (direct heating) or by thermally conducting the heat to the bimetal (Indirect heating). In indirect heating method, current flows through the heater and the contact system to the customer terminal. The heater conducts the heat to bimetal and it gets deflected. A calibration screw is be placed at the apex of the bimetal which will serve for 2 purposes i.e., a one point hitting and a calibration. As the screw will have a narrow end than the surface of a bimetal, it can hit the shaft more precisely. Due to varied reasons like change in resistance, improper mechanical joints, assembly and component level tolerance, the gap between the bimetal & the shaft varies. In order to adjust this gap, the calibration screw is adjusted to its correct distance either by screwing or unscrewing it. This gap is called trip gap ‘X’.With the bimetal the calibration screw moves and hits the shaft which in turn produces the trip (circuit break) command. Calibration is actually a tedious and a cumbersome process. Much iteration is to be done to achieve the perfect operation. The iterations are intercepted with a cooling period during which the bimetal cools and comes back to the original condition and gets ready for the next iteration. In the conventional calibration method, a Bimetal has to deflect ‘X’ mm to trip the circuit breaker.The operator will pass current to breaker and the heater and/or bimetal heats up to deflect the bimetal by ‘X - Dx’ mm. The breaker does not trip within the given time limit. Also, the operator allows the breaker to cool it for a period of time (varies from 20 to 45 minutes). Further, the operator adjusts the calibration screw; this case reduces the gap between the calibration screw and shaft so that the circuit breaker will trip within the desired time limit. If bimetal deflects ‘X - Dy’ mm (where y