EHU Type Shaft width for MCCB rotary handles

EHU Type Shaft width for MCCB rotary handles

See the below measurements for MCCB rotary shaft widths. This document is meant to eliminate confusion and help match the correct shaft to handle and breaker combination.

Note that this documents refers strictly to EHU type shafts. REH type shafts and mechanisms are physically different and not compatible/interchangable.   Therefore, a REH type shaft will not work with an EHU type handle and vice versa. 

The shaft width for EHU-0 (UTE100) is 10mm (~3/8”).

 

Width measurement of a shaft for use with the UTE100 MCCB

 

The shaft width for EHU-2 (UTS150/250) is 12.7mm (1/2”). The shaft is the same for EHU-3 (UTS400/600), 12.7mm (1/2”).

Width measurement of a shaft for use with the UTS150, 250, 400, and 600 MCCBs

The shaft width for EHU-5 (UTS800/1200) is 14mm (~9/16”).