Components of a Motor Control Center
Training Outline
This course introduces water and wastewater operators to the core components of motor control centers (MCCs) used in treatment plants. Learn how MCCs function, what each part does — from circuit breakers and VFDs to PLCs and HMIs — and what safety procedures to follow before working on or around these panels in the field.
- Placement test1
Components of a Motor Control Center
- Electrical Cabinet Safety
- Switches
- Circuit Breakers
- Auxiliary Relays
- Three-Phase Motors
- Switch Disconnectors
- Fuses
- Contactors
- Thermal Overload Relays
- Lockout/Tagout Procedure
Chapter test - 2Chapter test
- 3Chapter test
- 4Chapter test
- 5Chapter test
- 6Chapter test
- 7Chapter test
- 8Chapter test
Learning outcomes
- Explain the importance of MCCs in drinking water and wastewater treatment plants
- Identify the key components of a motor control center and explain their primary functions
- Describe the safety protocols to follow when working with MCCs
Level
Intermediate
Prerequisites
See our Electricity in Drinking Water and Wastewater Systems course
Target audience
Professional certified drinking water and wastewater operators class I to IV, maintenance technicians
Learning material and method
Video clips with placement test, practice exercises and handout
Learning assessment method
Chapter tests (MCQs) with a minimum score of 70%
Test your knowledge, validate your skills
Engage with interactive quizzes designed to boost retention and track your learning along the way. Once you've completed the training, a final validation step confirms your progress and helps demonstrate your skills with confidence—making it easy to showcase what you’ve learned.
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