Square D BJA160303 Molded Case Circuit Breaker
- 30A
- 1 Pole
- I-Line
Square D
BJA160303
Molded Case Circuit Breaker
Brand
Square D
SKU
BJA160303
Quantity
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Square D BJA160303 - 30A 1 Pole Molded Case Circuit Breaker
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Description
Built for heavy-duty industrial facilities, this PowerPacT B-Frame unit delivers reliable thermal-magnetic protection. The 30A, single-pole breaker is designed for environments requiring robust long-time and instantaneous trip functions. It installs seamlessly into Square D I-Line panelboards and switchboards. Facility managers can use this to replace the discontinued FA14030B model. Featuring a phase B connection, it provides a 65kA interrupt rating at 480Y/277V.Specifications
| Brand | Square D |
|---|---|
| Series | BJA |
| Amperage | 30A |
| Poles | 1 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 600Y/347VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 100kA @ 208Y/120VAC, 100kA @ 240VAC, 65kA @ 480Y/277VAC, 25kA @ 600Y/347VAC, 50kA @ 125VDC |
| Frame Type | B |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Switchboards |
| Wire Gauge | 14-2/0 AWG (Al/Cu) |
| Max Wire | 2/0 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, Undervoltage Release, Auxiliary Switch, Alarm Switch, Padlock Attachment, Lug Kits |
|---|---|
| Accessories | None included |
| Standards | CSA C22.2 No 5, EN/IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CCC, CE, CSA, EAC, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated |
Product FAQs
8 answersWhich panelboards are compatible with the BJA160303 breaker?
This breaker is designed exclusively for Square D I-Line panelboards and switchboards. It features an I-Line style plug-in connection that mounts directly to the panel busbar.
Can this breaker be used to replace an older FA-frame breaker?
Yes, the PowerPacT B-Frame series is the direct manufacturer replacement for legacy Square D FA and FH frame breakers. It maintains the same I-Line mounting dimensions to easily retrofit into existing panelboards.
Does this breaker require a separate mounting bracket for I-Line panels?
No, the BJA160303 features a built-in I-Line plug-on connection. It snaps directly onto the busbar of a compatible Square D I-Line panelboard or switchboard without the need for additional mounting hardware.
What does the LI trip function code mean on this breaker?
The LI designation indicates that the thermal magnetic trip unit provides both Long-Time (L) and Instantaneous (I) protection. The long-time function protects against overloads, while the instantaneous function protects against short circuits. Both settings are fixed on this model.
Are the lugs on the BJA160303 rated for aluminum wire?
Yes, the factory-installed lugs are dual-rated for both aluminum (Al) and copper (Cu) conductors. They accept wire sizes ranging from 14 AWG up to 2/0 AWG.
Can I use the BJA160303 in a DC circuit?
Yes, this thermal magnetic breaker is rated for use in DC applications up to 125VDC, where it provides a 50kA interrupting rating.
What does the J in the BJA160303 catalog number indicate?
The J designates the interrupting rating tier within the PowerPacT B-Frame family. For this model, it indicates a rating of 65kA at 480Y/277VAC and 100kA at 240VAC.
Does this breaker include a push-to-trip feature?
Yes, PowerPacT B-Frame circuit breakers include an integral push-to-trip button on the front cover. This allows electricians to manually trip the breaker to verify the mechanical operation of the trip mechanism.
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