Designed for commercial and industrial power distribution, this 30A, 1-pole molded case circuit breaker provides essential overcurrent protection. It utilizes a reliable thermal-magnetic trip mechanism with fixed LI functions. The unit installs into legacy Square D NA1B panelboards via a secure bolt-on connection. If a direct replacement is unavailable, a QOB130 can be used as a substitute when installed with a compatible retrofit kit. It features a 10kAIC rating and a Visi-Trip indicator.
Which legacy panelboards are designed to accept the A1B130 breaker?
The A1B frame is specifically engineered to mount into obsolete Square D NA1B panelboards. It features a unique bolt-on configuration for these older busbars and will not fit in standard modern QO or NQ panelboards.
Can I use a modern breaker in place of the A1B130?
Yes. If an original A1B130 is unavailable, a modern Square D QOB130 bolt-on breaker can be used as a substitute, provided it is installed with a compatible retrofit mounting kit designed specifically for NA1B panelboards.
What are the wiring requirements for the load-side terminals?
The integrated lugs accept copper or aluminum conductors ranging from 14 AWG to 8 AWG. Always verify that the wire gauge matches the circuit requirements and is torqued to the manufacturer specifications during installation.
Is the A1B130 rated for direct current applications?
Yes, alongside its standard 120VAC rating, this breaker is certified for 48VDC systems, allowing it to be used in specific low-voltage DC control and distribution panels.
How does the Visi-Trip feature assist with panel maintenance?
The breaker includes a Visi-Trip indicator that displays a highly visible red flag when the unit trips. This allows electricians to immediately identify the faulted circuit without manually testing each breaker in the panelboard.
How does the thermal-magnetic trip unit function on this breaker?
The fixed LI (Long-Time, Instantaneous) trip mechanism uses a bimetallic strip to respond to prolonged overloads and an electromagnetic assembly to trip immediately during severe short circuits, ensuring comprehensive circuit protection.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.
Square D A1B115 - 15A 1 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
7/19/21
Great Service, On Time Delivery, Great Price
SuperBreakers is my a dependable source to meet my customer's requirements at a good value and with on time delivery. When you throw in great customer service, you can't beat that combination.
CH
Cobe H.
Reviewing
Square D A1B120 - 20A 1 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
2/11/19
Repeat customer
Although these breakers are refurbished they work great. It beats having to change the whole panel because of one breaker.