Built for commercial and industrial power distribution, the Siemens HB2B030 is a 2-pole, 30A molded case circuit breaker. It utilizes reliable thermal-magnetic trip technology with fixed long-time and instantaneous (LI) functions to protect electrical systems. This HBQ-type breaker mounts into Siemens P1, P2, and P3 panelboards. It features a bolt-on connection and includes load side lugs. Rated for an impressive 65kA at 120/240VAC, it offers high interrupting capacity and is HACR rated.
HACR Rated, Common Trip, Non-Interchangeable Trip, High Interrupting Capacity, Reverse Feed
Product FAQs
6 answers
Which panelboards accept the Siemens HB2B030 circuit breaker?
This bolt-on breaker is designed specifically for commercial and industrial applications using Siemens P1, P2, and P3 panelboards. It is not compatible with standard residential plug-on load centers.
How does the HBQ series differ from standard BQ and BQH breakers?
The HBQ, BQH, and BQ series all share the same physical BQ frame and bolt-on mounting style. The difference is the interrupting rating. BQ breakers are rated for 10kA, BQH for 22kA, and HBQ breakers like the HB2B030 provide a 65kA rating.
Is the HB2B030 suitable for HVAC equipment?
Yes, this breaker is HACR rated. It is approved for use with group motor installations commonly found in heating, air conditioning, and refrigeration systems.
What wire gauges are compatible with the load lugs on this breaker?
The factory-installed load side lugs accommodate 14 to 6 AWG copper conductors or 12 to 6 AWG aluminum conductors. Ensure proper torque specifications are followed during installation as outlined by the manufacturer.
What type of protection does the HB2B030 trip unit provide?
It utilizes a fixed thermal-magnetic trip unit. This provides standard LI (long-time and instantaneous) protection, offering a delayed response to overloads and an immediate trip during short circuits.
Are the trip settings adjustable on the HB2B030?
No, this breaker features a non-interchangeable trip unit with fixed thermal and fixed magnetic settings.
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