Disconnect Switch, Contactor, and Thermal Relay Course
This course equips you to master disconnect switches, contactors, and thermal overload relays for secure three-phase motor control. You will learn essential wiring techniques, protection configurations, compliance codes, and lockout/tagout protocols, empowering confident design, commissioning, and maintenance of motor circuits in professional settings.

from 4 to 360h flexible workload
valid certificate in your country
What will I learn?
Gain expertise in disconnect switches, contactors, and thermal overload relays through this practical course. Progress from three-phase basics to installing compliant motor starters safely. Cover proper wiring, earthing, conductor sizing, torque methods, standards application, protection device selection, short-circuit and overload coordination, plus lockout/tagout and commissioning steps for dependable motor operation.
Elevify advantages
Develop skills
- Motor control wiring: assemble secure L1-L3 power and Start/Stop circuits efficiently.
- Disconnect and LOTO: choose, install, and apply lockout to motor isolators properly.
- Contactor and overload setup: select, connect, and align starters for optimal motor safeguarding.
- Standards-based design: implement IEC/NEC guidelines in authentic three-phase motor systems.
- Commissioning and testing: confirm wiring integrity, rotation, and safeguards prior to power-up.
Suggested summary
Before starting, you can change the chapters and the workload. Choose which chapter to start with. Add or remove chapters. Increase or decrease the course workload.What our students say
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