Square D A1L330 Miniature Circuit Breaker
- 30A
- 3 Pole
- Unit Mount
Quantity
Square D A1L330 - 30A 3 Pole Miniature Circuit Breaker
Re-Certified
Quantity
Description
An exact fit for OEM and control panels, the A1L330 is a 30-amp miniature circuit breaker from Square D. This 3-pole unit delivers dependable thermal-magnetic protection for commercial and industrial electrical systems. It features a unit-mount design with box lug terminals, accommodating 14-2 AWG wire for straightforward installation. Rated for 10 kAIC at 240VAC and 5 kAIC at 48VDC, it includes a visual trip indicator and is HACR rated. Note: This legacy breaker is replaced by the QOU330.Specifications
| Brand | Square D |
|---|---|
| Part Number | A1L330-R |
| Series | A1L |
| Amperage | 30A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 48VDC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC, 5kA @ 48VDC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | OEM Panels, Enclosures, Control Panels |
| Wire Gauge | 14-2 AWG |
| Max Wire | 2 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Surface Mounting Brackets, DIN Rail Mounting Brackets |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5.1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
| Special Features | Unit Mount |
Product FAQs
7 answersIs there a modern replacement for the legacy A1L330 circuit breaker?
Yes, the A1L330 is a legacy model that has been replaced by the Square D QOU330. The QOU330 serves as a direct cross-reference, maintaining the same 30A, 3-pole, unit-mount configuration for OEM and control panels.
How is the A1L330 installed in a control panel?
The A1L330 utilizes a unit-mount, feed-thru design. Instead of snapping or bolting onto a standard panelboard bus, it mounts directly to the backpan or enclosure using surface mounting brackets or DIN rail hardware, making it ideal for custom OEM control panels.
What are the wire gauge requirements for the A1L330 terminals?
The integrated box lugs accommodate wire sizes from 14 AWG up to 2 AWG. Ensure proper torque specifications are followed during installation to maintain a secure connection.
Does the A1L330 support DC voltage applications?
Yes, while primarily used in 240VAC systems with a 10 kAIC rating, this breaker is also rated for 48VDC applications with an interrupting capacity of 5 kAIC.
Is the A1L330 suitable for HVAC equipment?
Yes, this breaker is HACR rated, meaning it is certified for the specific inrush currents and operational demands of heating, air conditioning, and refrigeration equipment.
Can I install the A1L330 in a standard Square D QO or Homeline load center?
No, the A1L330 is a unit-mount breaker designed for OEM panels, enclosures, and control panels. It does not have the plug-on or bolt-on clips required to connect to the busbars in standard QO or Homeline residential or commercial load centers.
Does the A1L330 feature a trip indicator?
Yes, this breaker includes a visual trip indicator, allowing electricians and maintenance personnel to quickly identify a tripped circuit during troubleshooting.
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