Which item is not required on a motor nameplate according to the material?

Which item is not required on a motor nameplate according to the material?

• A. A fuse
• B. A switch or a circuit breaker
• C. A thermal link
• D. None of these

Answer: (B)

A motor nameplate communicates the motor’s operating electrical characteristics and any built‑in protections, not the control devices used in the circuit. A thermal link (internal overload protection) is a feature that may be built into the motor and is relevant to how the motor protects itself, so it’s appropriate for the nameplate to indicate that protection. Fusing, when provided or coordinated with the motor’s full‑load current, can also be part of the protection details shown on the plate. But a switch or circuit breaker is a separate control device in the electrical installation and is not required to be listed on the motor’s nameplate. The nameplate focuses on what the motor needs to operate and how it protects itself, while the switching device is chosen and installed in the surrounding circuitry.

A motor nameplate communicates the motor’s operating electrical characteristics and any built‑in protections, not the control devices used in the circuit. A thermal link (internal overload protection) is a feature that may be built into the motor and is relevant to how the motor protects itself, so it’s appropriate for the nameplate to indicate that protection. Fusing, when provided or coordinated with the motor’s full‑load current, can also be part of the protection details shown on the plate. But a switch or circuit breaker is a separate control device in the electrical installation and is not required to be listed on the motor’s nameplate. The nameplate focuses on what the motor needs to operate and how it protects itself, while the switching device is chosen and installed in the surrounding circuitry.