QOB Bolt-on Circuit Breakers
QOB (B=Bolt-on) circuit breakers are bolt-on branch circuit
breakers designed specifically for use in Square D™ NQ panelboards.
They are engineered for reliable performance and secure connections.
These breakers mount directly to the panel bus, providing enhanced
durability and reduced risk of loose connections. QOB breakers support
both thermal-magnetic protection for overloads and short circuits,
as well as optional ground-fault and equipment protection features.
They are UL listed and suitable for use in lighting and distribution
applications.
QOB Bolt-on Circuit Breakers with Visi-Trip™ for NQ Panelboards
QOB bolt-on circuit breakers feature a durable bolt-on mounting system. These breakers ensure secure, vibration-resistant installation and consistent electrical performance. The integrated Visi-Trip™ indicator offers a clear visual signal when the breaker has tripped, allowing for quick identification of faulted circuits and faster troubleshooting. QOB bolt-on circuit breakers are designed for use in Square D™ NQ panelboards and are available in a range of amperages and interrupting ratings. These breakers are built for quick installation and long service life.
note
NQ panelboards also accept QO plug-on circuit breakers. see
tables in Section 7 of the Digest. NQ panelboards with 175 or 200
A QO circuit breakers require three-point latch trim fronts.
For additional information, refer to NO Panelboards online.