Square D FIJ34080 Molded Case Circuit Breaker
- 80A
- 3 Pole
- I-Line
Square D
FIJ34080
Molded Case Circuit Breaker
Brand
Square D
SKU
FIJ34080
Quantity
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Square D FIJ34080 - 80A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for maximum fault restriction, the Square D FIJ34080 is an 80A, 3-pole current-limiting molded case circuit breaker. It provides thermal-magnetic protection for commercial networks up to 480VAC. This F-Frame breaker mounts into Square D I-Line panelboards, offering a secure plug-on connection. As a legacy component, it can be replaced by the newer HRA36080U31X model. With a 200kAIC rating at 480V, it significantly reduces let-through energy to prevent equipment damage.Specifications
| Brand | Square D |
|---|---|
| Part Number | FIJ34080 |
| Series | FI |
| Amperage | 80A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 200kA @ 480Y/277VAC, 200kA @ 480VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D I-Line Panelboards |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 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, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489, W-C-375B/GEN |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, HACR Rated, Visual Trip Indicator |
| Special Features | Current Limiting |
Product FAQs
6 answersWhat type of panelboard is the FIJ34080 designed for?
This breaker features I-Line plug-on mounting and is designed exclusively for use in Square D I-Line panelboards and switchboards. It will not fit in standard load centers or lug-to-lug applications.
Can I replace an older FA or FH frame breaker with the FIJ34080?
Yes, the FIJ34080 is a legacy F-frame breaker that shares the same physical dimensions and I-Line mounting footprint as other 3-pole F-frame breakers, including FA, FH, and FC models. Ensure the 80A rating and interrupting capacity meet your system requirements.
Is the Square D FIJ34080 obsolete, and what is the modern replacement?
Yes, the legacy F-frame series has been discontinued by Schneider Electric. The modern direct replacement is the PowerPact H-frame series, which fits the same I-Line panelboard space.
What does the current limiting designation mean for the FIJ34080?
As a current-limiting circuit breaker, it is designed to clear electrical faults extremely fast, typically within a half-cycle. This limits the peak let-through current and energy, providing enhanced protection for downstream equipment.
How does the I-Line mounting system work on this breaker?
The breaker features plug-on jaws on the line side that press directly onto the I-Line busbar stack. The load side uses standard mechanical lugs to terminate the outgoing wires.
Can I adjust the trip settings on the FIJ34080?
No, this breaker features a fixed thermal-magnetic trip unit. Both the long-time overload and instantaneous short-circuit trip functions are factory-set and non-interchangeable.
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