What is the minimum installation height for electric motors and transformers?

The minimum installation height for electric motors and transformers is specified as 48 inches in order to ensure safety and accessibility, particularly in the context of preventing accidental contact with live electrical components. The requirement for mounting at this height also aids in compliance with various electrical codes, which are designed to protect both personnel and equipment from potential hazards.

Installing electric motors and transformers at 48 inches helps facilitate maintenance and repair activities without requiring specific lifting equipment or tools beyond standard practices, keeping these components accessible for routine checks and troubleshooting. Additionally, this height helps protect the equipment from potential liquid spills or debris that might be more common at lower elevations, thereby supporting greater operational reliability and longevity.

In contrast, lower installation heights such as 24 inches, 36 inches, or even 60 inches may not provide the same balance of safety, accessibility, and equipment protection that is achieved with the 48-inch standard.