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Square D FJA34015 Molded Case Circuit Breaker
- 15A
- 3 Pole
- I-Line
Square D
FJA34015
Molded Case Circuit Breaker
Brand
Square D
SKU
FJA34015
Quantity
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Square D FJA34015 - 15A 3 Pole Molded Case Circuit Breaker
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15A 3 Pole Molded Case Circuit Breaker
15A 3 Pole Molded Case Circuit Breaker
Description
Utilizing proven thermal-magnetic technology, this 15-amp, three-pole molded case circuit breaker ensures dependable long-time and instantaneous protection. It safeguards commercial networks against overloads. The unit mounts effortlessly into Square D I-Line panelboards, providing a stable connection. For long-term planning, the manufacturer designates the HJA36015 as the substitute for this legacy model. Boasting a 65kA interrupting capacity at 480VAC, the breaker is fully HACR rated.Specifications
| Brand | Square D |
|---|---|
| Part Number | FJA34015-R |
| Series | FJA |
| Amperage | 15A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | 14-4 AWG (Cu/Al) |
| Max Wire | 4 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, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Load Side Lugs |
| Standards | UL 489, CSA C22.2 No. 5, NEMA AB 1, IEC 60947-2 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity |
Product FAQs
8 answersIs the FJA34015 a current production model or a legacy breaker?
The FJA34015 is a legacy F-frame molded case circuit breaker. For new installations or long-term planning, Schneider Electric designates the PowerPact H-frame HJA36015 as the modern substitute for this model.
What type of panelboards will accept the FJA34015?
This breaker features an I-Line style plug-in connection and is exclusively compatible with Square D I-Line panelboards and switchboards. It cannot be installed in standard load centers or bolt-on commercial panels.
Can the trip settings on the FJA34015 be adjusted in the field?
No, this breaker is equipped with a fixed thermal and fixed magnetic trip unit. The long-time (L) and instantaneous (I) protection settings are factory-set and are not field-adjustable.
What does the J in the FJA34015 catalog number signify?
In the Square D F-frame series, the J indicates the interrupting rating tier. It denotes a high interrupting capacity, specifically providing 65kA at 480V AC and 100kA at 240V AC.
What wire sizes are compatible with the lugs on the FJA34015?
The factory-installed lugs on this breaker accept wire gauges from 14 AWG up to 4 AWG. The terminals are rated for use with either copper (Cu) or aluminum (Al) conductors.
What safety procedures are required when installing the FJA34015 in an I-Line panelboard?
Always ensure the panelboard is fully de-energized and follow standard lockout/tagout (LOTO) procedures before installing or removing an I-Line plug-in breaker. Verify the absence of voltage with a properly rated testing device before making any connections.
Is the FJA34015 rated for direct current (DC) applications?
Yes, in addition to its standard AC ratings, this breaker is rated for use in DC systems up to 250V DC, providing an interrupting capacity of 10kA.
Does the FJA34015 provide ground fault or short-time protection?
No, this breaker is equipped with a standard thermal-magnetic trip unit that provides only long-time and instantaneous (LI) protection. It does not include ground fault (G) or short-time (S) trip functions.
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