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## LEARNING TASK 2 ### Figure 4 - Connection of a motor running light - **L1** and **L2** are the power lines. - **Start** is a push-button switch. - **3** is a conductor connection point. - **M** is a motor. - **OLR** is an overload relay. - **Stop** is a push-button switch. - **2** is a conducto...

## LEARNING TASK 2 ### Figure 4 - Connection of a motor running light - **L1** and **L2** are the power lines. - **Start** is a push-button switch. - **3** is a conductor connection point. - **M** is a motor. - **OLR** is an overload relay. - **Stop** is a push-button switch. - **2** is a conductor connection point. - **M** is a magnetic starter. - **R** is a red indicator light. ### Operation from remote locations Sometimes you may need to operate a motor from more than one location. Figure 5 shows the connections for three separate STOP/START push-button stations. Note that the STOP buttons are electrically connected in series; the START buttons are in parallel with each other. ### Figure 5 - Three-station push-button control for a motor - **L1** and **L2** are the power lines. - **Start 1**, **Start 2**, and **Start 3** are push-button switches. - **Stop 1**, **Stop 2**, and **Stop 3** are push-button switches. - **4** and **5** are conductor connection points. - **M** is a motor. - **OLR** is an overload relay. ### A three-position selector switch may be used to provide either manual or automatic ON/OFF control. Figure 6 illustrates the use of a float switch for a pump motor to do this. When in the AUTO position, the magnetic starter is controlled by the opening or closing of the float switch contacts. ## CONSTRUCTION ELECTRICIAN APPRENTICESHIP PROGRAM: LEVEL 1

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motor control electrical engineering apprenticeship
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