The 2.25MHz oscillator Q1 drives the amplifier Q2 and the ultrasonic sensor XTAL1. The sensor is a lead zirconate titanate type. The taps of T1 and T2 provide low impedance drive points.
Thermal Overload Relays are protective devices used for overload protection of electric motors or other electrical equipment and electrical circuits,It consists of heating elements, bimetals,contacts and a set of transmission and adjustment mechanisms.
Our Thermal Overload Relays had been divided into five series(as follow),with good quality and most competitive price,had exported into global market for many years:
LR1-D New Thermal Relay
LR2-D Thermal Relay
LR-D New Thermal Relay
LR9-F Thermal Relay
Intermediate Relay
The working principle of the thermal relay is that the current flowing into the heating element generates heat, and the bimetal having different expansion coefficients is deformed. When the deformation reaches a certain distance, the link is pushed to break the control circuit, thereby making the contactor Loss of power, the main circuit is disconnected, to achieve overload protection of the motor.
As an overload protection component of the motor, the thermal relay has been widely used in production due to its small size, simple structure and low cost.
Thermal Overload Relay,Telemecanique Overload Relay,Thermal Digital Overload Relay,Telemecanique Model Thermal Relay
Ningbo Bond Industrial Electric Co., Ltd. , https://www.bondelectro.com