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...Thermal Overload Relay , Overload Protection Relay Thermal overload relays are protective devices. They are designed to cut power if the motor draws too much current for an extended period of time. To accomplish this, thermal overload relays contain a normally closed (NC) relay. When excessive current flows through the motor circuit, the relay opens due to increased motor temperature, relay temperature, or sensed overload
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...Overload Relays Four Pole I.Working principle and usage The thermal element of the thermal overload relay is directly or through the current transformer connected to the motor circuit. When the motor is overloaded, the main bimetallic strip is heated to the action temperature, which makes the relay move, and the power circuit of the power failure motor is divided, so that the motor is not damaged by overload. Thermal overload relay
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...Overload Relay The E80DU-80 is an self-supplied electronic overload relay, which means no extra external supply is needed. It offers reliable and fast protection for motors in the event of overload or phase failure. Easy to use like a thermal overload relay and compatible with standard motor applications, the electronic overload relay...
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