Square D FJA34060 Molded Case Circuit Breaker
- 60A
- 3 Pole
- I-Line
Quantity
Square D FJA34060 - 60A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Built for overload and short-circuit protection, the Square D FJA34060 molded case circuit breaker is rated 60A, 277/480VAC, with 3 poles and a 65kA interrupting rating at 480VAC. The FJA series breaker has an F frame and I-Line mounting. Fixed thermal magnetic tripping provides long-time and instantaneous protection. Lug terminals support a minimum wire size of 14 AWG. Approvals include CSA, HACR and UL.Specifications
| Brand | Square D |
|---|---|
| Part Number | FJA34060 |
| Series | FJA |
| Amperage | 60A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 277/480VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 480VAC |
| Frame Type | FJA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| 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 | Alarm Switch, Auxiliary Switch, Shunt Trip, Undervoltage Release |
|---|---|
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity |
Product FAQs
9 answersWhat current rating should I use when selecting the Square D FJA34060?
This breaker is rated 60A. Select it for a circuit requiring 60A overcurrent protection, with conductor sizing coordinated to the circuit requirements.
How does the voltage rating guide circuit selection?
The breaker is rated 277/480VAC. Match this rating to the circuit voltage when selecting it for an AC application.
How much available fault current can this breaker interrupt at 480VAC?
Its interrupting rating is 65kA at 480VAC. Compare that rating with the available fault current at the installation point to ensure the available fault current does not exceed the breaker's interrupting rating.
How does the trip protection work, and can I adjust it?
Thermal-magnetic protection combines long-time overload protection with instantaneous protection for high fault currents. Both the thermal and magnetic settings are fixed, so select it where preset protection is appropriate rather than field-adjustable trip settings.
What should I consider when selecting conductors for the lug terminals?
The breaker uses lug terminals, with a minimum conductor size of 14 AWG. Choose conductor size for the circuit ampacity rather than treating the terminal minimum as the required circuit wire size.
Why does the 40C temperature rating matter?
The breaker has a 40C temperature rating. Consider installation temperature during selection because its thermal trip element responds to heat when providing overload protection.
What dimensions should I use when planning the installation layout?
The breaker measures 9.75 in high, 3.00 in wide and 5.25 in deep. Use these dimensions to plan the physical space allocated to the breaker.
What does the HACR rating mean for equipment selection?
HACR refers to heating, air-conditioning and refrigeration applications. The HACR rating is relevant when equipment requirements call for a HACR-rated breaker; coordinate the circuit selection with its current, voltage and interrupting ratings.
What does the three-pole construction mean for circuit protection?
The Square D FJA34060 has three poles to interrupt the phase conductors of a three-phase circuit. Plan the phase-conductor terminations across all three poles.
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