You see 4 terminals because there are 3 poles and an auxiliary contact. How to wire a contactor and overload.
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Contactor and thermal overload relay wiring diagram. A wiring diagram is a streamlined standard pictorial representation of an electric circuit. Although there are several types of overload relays available in the market however the most frequent type of relay is the. How to wire a contactor and motor protection switch. Variety of thermal overload relay wiring diagram. You must watch this video. Fill up the following data of relay under test.
Overload test 1m 1m dut 1m 1m from current source nc contact of relay connections of thermal overload relay for ol testing testing of thermal overload relay 1. The wiring diagram of an overload relay is shown below and the connections of an overload relay symbol may seem like two opposite question marks otherwise like s symbol. 2 days ago i wired 380 to 440 volts contactor for a 3 phase motor and save these images of contactor in pc. Thermal overload relay wiring diagram wiring diagram is a simplified welcome pictorial representation of an electrical circuitit shows the components of the circuit as simplified shapes and the facility and signal associates together with the devices. Contactor wiring and i hope after this post you will be able to wire a 3 phase motor i also published a post about 3 phase motor wiring with magnetic contactor and thermal overload relay but today post and contactor wiring diagram is too simple and easy to learn. Overload relay connection diagram.
Easy and simple wiring diagram to make you learn easily watch the video and subscribe my youtube channel air. It shows the components of the circuit as simplified forms and the power and also signal links between the gadgets. Though there are different types of overload relays the most common type is the bimetallic thermal overload relay. The overload relay workingfunction is discussed below. The contactor is on top and the overload relay is attached directly to it on bottom. A wiring diagram is a streamlined traditional pictorial representation of an electrical circuit.
Dol starter control and power wiring by using a fuse contactor overload relay motor. Dol motor starter with 230v contactor coil. It shows the components of the circuit as simplified shapes as well as the power and signal links between the tools. Its is important to. Variety of siemens overload relay wiring diagram. A relay type b relay range c max.
Back up fuse rating 2. As an example the auxiliary contact can be used for something like turning on a pilot light on the control panel to indicate the motor is operating. In a wiring diagram the symbol for overload contacts may look like two opposed question marks or an s. Use transformer if you need to.
Gallery of Contactor And Thermal Overload Relay Wiring Diagram
