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Square D A1B330 Molded Case Circuit Breaker
- 30A
- 3 Pole
- Bolt-On
Square D
A1B330
Molded Case Circuit Breaker
Brand
Square D
SKU
A1B330
Quantity
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Square D A1B330 - 30A 3 Pole Molded Case Circuit Breaker
Re-Certified
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Description
Engineered for commercial applications, the Square D A1B330 is a 3-pole miniature molded case circuit breaker. It features a long body design and a Visi-Trip indicator for quick status checks. This 30A breaker bolts into legacy Square D NA1B panelboards. It provides a crucial maintenance solution for facilities running classic 240V distribution systems. Rated for 10 kAIC at 240VAC, it utilizes fixed thermal-magnetic trip technology and accepts 14-8 AWG wire via load side lugs.Specifications
| Brand | Square D |
|---|---|
| Part Number | A1B330-R |
| Series | A1B |
| Amperage | 30A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D NA1B Panelboards |
| Wire Gauge | 14-8 AWG (Cu/Al) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Long Body, Visual Trip Indicator |
Product FAQs
7 answersWhich panelboards accept the Square D A1B330 circuit breaker?
The A1B330 is engineered specifically for legacy Square D NA1B panelboards. It features a long-body frame designed to fit these older commercial and industrial distribution systems.
Will the A1B330 fit into a standard Square D QO load center?
No. The A1B330 has a specific long-body footprint and bolt-on design exclusive to NA1B panelboards. It is not physically compatible with standard QO or I-Line series enclosures.
Is the Square D A1B series still in active production?
No, the A1B series is an obsolete product line. Sourcing an A1B330 provides a direct replacement to maintain existing NA1B panelboards without the need for a complete system retrofit.
How does the trip mechanism function on the A1B330?
It features a fixed thermal-magnetic trip unit. The thermal component provides long-time protection against sustained overloads, while the magnetic component delivers instantaneous protection against short circuits.
What type of conductors can be terminated on the A1B330 load lugs?
The breaker is equipped with standard mechanical lugs that accept both copper and aluminum (Cu/Al) conductors. The acceptable wire range is 14 AWG to 8 AWG, allowing flexibility for 30-amp branch circuit wiring.
How is the A1B330 secured to the panelboard?
This breaker utilizes a bolt-on mounting configuration. It must be mechanically fastened directly to the panelboard bus, which provides a secure, high-retention connection typical in commercial applications.
How can I identify if the A1B330 has tripped?
The breaker is equipped with a Visi-Trip indicator. When a fault causes the breaker to trip, a high-visibility marker appears, allowing electricians and facility managers to quickly locate the tripped circuit in the panelboard.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.
Total 5 star reviews: 2 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
2 reviews
- NLNoble L.ReviewingSquare D A1B115 - 15A 1 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/19/21Great 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.
- CHCobe H.ReviewingSquare D A1B120 - 20A 1 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/11/19Repeat customer
Although these breakers are refurbished they work great. It beats having to change the whole panel because of one breaker.