Can a QO1HT handle tie be used to tie 3 single pole QO or QOB breakers together?
Electrical Distribution Equipment
Application to tie breaker handles together.
No. These handle ties are made to link only two single pole breakers together to provide a common on/off capacity.
The correct handle tie to use for this application is either QOHT2 for 2 single pole breakers or QOHT3 for 3 single pole breakers. Another option for 3 single pole breakers that includes a padlock attachment is QO3HT.