Part of the legacy A1B series, this 30A, 2-pole molded case circuit breaker delivers reliable thermal-magnetic protection for commercial environments. It is designed to handle 240VAC loads with a 10kAIC interrupting rating. This bolt-on unit installs into discontinued Square D NA1B panelboards. For modern upgrades, it can be replaced by a standard QOB230 breaker when paired with a retrofit kit. The breaker features fixed long-time and instantaneous trip functions, plus a Visi-Trip indicator.
Which panelboards are compatible with the A1B230 circuit breaker?
The A1B230 is a legacy breaker designed specifically for older Square D NA1B panelboards. It features a long body and foot bolt design to match the bus configuration of these discontinued enclosures.
Is there a modern replacement for the discontinued A1B230 breaker?
Yes. You can substitute this legacy breaker with a standard Square D QOB230 breaker by utilizing a specialized retrofit kit. This allows you to safely install the newer breaker while maintaining your current NA1B enclosure.
How does the A1B230 mount into the panelboard?
It utilizes a bolt-on connection featuring a long body and foot bolt design to securely attach to the panelboard bus.
Does the A1B230 include a visual trip indicator?
Yes, this breaker features a Visi-Trip indicator, allowing you to quickly identify a tripped condition visually within the panelboard.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
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.