Overhead Crane Electrical Requirements

Minimizing risks of electrical hazards

This section regulates voltage, cabling, design and construction of pendant controls to protect lifting equipment operators and other personnel from electrical shock. These specifications support OSHA 29 CFR-1910 Subpart S, which lays out employers’ responsibilities to provide employees a workplace that minimizes the risk of arc-flash and other electrical hazards.

OSHA 1910.179 Overhead & Gantry Cranes Regulations
(the following excerpt taken directly from OSHA 1910.179)

Electrical Equipment

  1. Wiring and equipment shall comply with subpart S of this part.
  2. The control circuit voltage shall not exceed 600 volts for a.c. or d.c. current.
  3. The voltage at pendant push-buttons shall not exceed 150 volts for a.c. and 300 volts for d.c.
  4. Where multiple conductor cable is used with a suspended pushbutton station, the station must be supported in some satisfactory manner that will protect the electrical conductors against strain.
  5. Pendant control boxes shall be constructed to prevent electrical shock and shall be clearly marked for identification of functions.

Electrical hazards pose potentially lethal consequences, but can easily lurk unnoticed. Over time, stress on equipment such as dangling pendant controls and cables, if not properly supported, may open employees to the risk of electrical shock. Call Konecranes’ expert service team to inspect your equipment for compliance with safety standards and to take corrective action, if needed.


*The foregoing OSHA regulations are not intended to be a comprehensive overview of all applicable regulations pertaining to the designated topic.  State laws may mandate different safety and maintenance standards.  Accordingly, please consult applicable state laws as well as original equipment manufacturer specifications for further guidance.  The statements and descriptions contained herein constitute the opinion/recommendation of the seller and are not intended to create any express warranties.