Selective coordination in elevators

Selective coordination in elevators is required when more than one elevator is supplied by a common feeder.

By Keith Lane, PE, RCDD, LEED AP BD+C, Lane Coburn & Assoc. LLC, Bothell, Wash. August 19, 2013

Selective coordination is required when more than one elevator is supplied by a common feeder, per NEC Article 620-62. Figure 2 shows an example of a coordination study illustrating the feeder breaker overcurrent protection, the elevator fuse overcurrent protection, and the elevator motor start-up curves.


Keith Lane is president and CEO of Lane Coburn & Assocs. He is a member of the Consulting-Specifying Engineer editorial advisory board, and was a 2008 40 Under 40 award winner. Lane has more than 20 years of experience designing, commissioning, and optimizing mission critical facilities.

– See how selective coordination studies are used in mission critical environments below.