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Square D FCL34080 Molded Case Circuit Breaker
- 80A
- 3 Pole
- Unit Mount
Square D
FCL34080
Molded Case Circuit Breaker
Brand
Square D
SKU
FCL34080
Quantity
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Square D FCL34080 - 80A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D FCL34080 - 80A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | FCL34080 |
| Series | FCL |
| Amperage | 80A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC |
| Frame Type | FCL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Enclosures, Switchboards, Motor Control Centers |
| Wire Gauge | 14-1/0 AWG (Cu), 12-1/0 AWG (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, Alarm Switch, Undervoltage Release, Padlock Attachment |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Current Limiting, High Interrupting Capacity, Trip-Free Mechanism, Common Trip |
| Special Features | Current Limiting |
Quantity
Square D FCL34080 - 80A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | FCL34080-R |
| Series | FCL |
| Amperage | 80A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC |
| Frame Type | FCL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Enclosures, Switchboards, Motor Control Centers |
| Wire Gauge | 14-1/0 AWG (Cu), 12-1/0 AWG (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, Alarm Switch, Undervoltage Release, Padlock Attachment |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Current Limiting, High Interrupting Capacity, Trip-Free Mechanism, Common Trip |
| Special Features | Current Limiting |
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Description
Built for demanding industrial environments, the Square D FCL34080 actively reduces let-through current during severe faults. As an 80A current-limiting MCCB, this 3-pole breaker enhances the safety and longevity of downstream electrical components. Equipped with line and load lugs for unit-mount installation, it fits seamlessly into Square D enclosures and switchboards. Facility managers looking for a modern equivalent can transition to the HJL36080 replacement breaker.Specifications
| Brand | Square D |
|---|---|
| Part Number | FCL34080 |
| Series | FCL |
| Amperage | 80A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC |
| Frame Type | FCL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Enclosures, Switchboards, Motor Control Centers |
| Wire Gauge | 14-1/0 AWG (Cu), 12-1/0 AWG (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, Alarm Switch, Undervoltage Release, Padlock Attachment |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Current Limiting, High Interrupting Capacity, Trip-Free Mechanism, Common Trip |
| Special Features | Current Limiting |
Product FAQs
7 answersWhat is the active replacement for the legacy FCL34080?
The FCL34080 is a legacy F-frame circuit breaker. For new installations or direct upgrades, Square D has superseded this model with the PowerPact H-frame series, specifically catalog number HJL36080.
How is the FCL34080 mounted?
This is a unit-mount breaker with a feed-thru connection. It bolts directly to the backplate of compatible Square D enclosures, switchboards, and motor control centers, utilizing line and load lugs rather than an I-Line plug-on bus connection.
Can I install this FCL breaker in an I-Line panelboard?
No, the FCL34080 is a unit-mount breaker designed for bolt-on installation. It is not compatible with I-Line panelboards, which require breakers with plug-on jaw connections.
What wire sizes are compatible with the standard lugs on the FCL34080?
The factory lugs accept 14 to 1/0 AWG copper conductors, or 12 to 1/0 AWG aluminum conductors.
Are the trip settings on the FCL34080 adjustable?
No, this breaker utilizes a thermal-magnetic trip unit with fixed long-time and fixed instantaneous (LI) trip functions. It does not feature adjustable dials for modifying the trip curve.
How does the current-limiting design of the FCL34080 protect downstream circuits?
During a severe fault, the current-limiting mechanism clears the short circuit extremely fast, actively restricting the peak let-through current and energy. This minimizes thermal and mechanical stress on downstream electrical components.
Is the FCL34080 suitable for high-fault industrial applications?
Yes, its current-limiting design provides a high interrupting capacity of 65kA at 480VAC and 100kA at 240VAC, allowing it to safely clear severe short circuits in heavy-duty commercial and industrial power distribution systems.
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