What hub style does the rainproof QO, Q2 and QOM2 circuit breaker enclosures accept?
CB Enclosure Accessory
Rainproof QO, Q2 and QOM2 circuit breaker enclosures use suffix RB in their catalog number. The R designates a Rainproof enclosure and the B designates that the device accepts bolt-on B-Hubs, 3/4`` - 2 1/2`` (B075 - B250). A closing cap (BCAP) is provided on all RB suffix devices.
NOTE: Exception - QO200TR and QO2TR devices have blank top endwalls and are for bottom feeding only.