Square D A1B115 Molded Case Circuit Breaker
- 15A
- 1 Pole
- Bolt-On
Quantity
Square D A1B115 - 15A 1 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
The A1B115 is a specialized 15-amp bolt-on breaker engineered for legacy electrical systems. Designed exclusively for Square D NA1B panelboards, this single-pole unit restores functionality to older commercial and industrial setups without requiring a complete panel upgrade. It provides standard long-time and instantaneous trip functions with a 10kAIC rating at 120VAC. Equipped with a visual trip indicator, it simplifies maintenance.Specifications
| Brand | Square D |
|---|---|
| Part Number | A1B115-R |
| Series | A1B |
| Amperage | 15A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 48VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| Frame Type | A1B |
|---|---|
| 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 |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator |
Product FAQs
5 answersWhich panelboards accept the Square D A1B115 circuit breaker?
The A1B115 is specifically engineered to mount into legacy Square D NA1B panelboards. It is used to maintain vintage commercial and industrial electrical infrastructure without requiring a complete panel upgrade.
What are the wiring and mounting requirements for the A1B115?
This breaker requires a bolt-on connection to the panelboard bus. On the load side, the integrated lugs accept 14 to 8 AWG copper or aluminum conductors.
How does the thermal-magnetic trip function operate on this breaker?
The A1B115 uses a fixed thermal-magnetic mechanism to provide dual protection. The thermal element provides long-time protection against sustained overloads, while the magnetic element trips instantaneously during short-circuit events.
Is the A1B115 a current production model?
No, the A1B series is an obsolete legacy line. Exact replacements like the A1B115 are sourced to restore functionality to older NA1B distribution systems, avoiding the downtime and cost of a full panel retrofit.
How can I identify if the A1B115 has tripped in a crowded panel?
This breaker features Square D Visi-Trip technology. When a fault occurs, a highly visible red indicator appears in the breaker window, allowing electricians to quickly locate the tripped circuit.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 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.