Square D FCL340801021 Molded Case Circuit Breaker
- 80A
- 3 Pole
- Unit Mount
Quantity
Square D FCL340801021 - 80A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Part of the legacy F-frame series, the FCL340801021 provides robust current-limiting protection for commercial and industrial electrical systems. It features a factory-installed 120/240VAC shunt trip, allowing for remote tripping capabilities. This 3-pole, 80A unit mount MCCB installs into compatible Square D enclosures, switchboards, and motor control centers. Rated at 65 kAIC at 480VAC, it effectively restricts let-through energy to safeguard downstream equipment from severe fault currents.Specifications
| Brand | Square D |
|---|---|
| Part Number | FCL340801021 |
| Series | FCL |
| Amperage | 80A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC |
| 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 | Auxiliary Switch, Alarm Switch, Undervoltage Release, Padlock Attachment |
|---|---|
| Accessories | Lugs, Shunt Trip (120/240VAC) |
| 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 type of panels or enclosures is the FCL340801021 compatible with?
This unit-mount F-frame breaker is designed for use in compatible Square D enclosures, switchboards, and motor control centers. It is not an I-Line plug-on breaker.
What does the 1021 suffix mean on the FCL340801021 catalog number?
The 1021 suffix indicates that the breaker comes with a factory-installed 120/240VAC shunt trip, allowing for remote tripping capabilities.
Is the FCL340801021 a current-limiting circuit breaker?
Yes, the FCL series is current limiting. It restricts let-through energy during a fault and provides an extra-high interrupting capacity of 100kA at 240VAC and 65kA at 480VAC.
What wire gauge range do the terminals on this 80A breaker accept?
The line and load side lugs accept 14 to 1/0 AWG copper (Cu) wire or 12 to 1/0 AWG aluminum (Al) wire.
Are the trip settings adjustable on the FCL340801021?
No, this breaker features a fixed thermal and fixed magnetic trip unit with standard long-time and instantaneous (LI) protection functions.
How is this 80A Square D breaker mounted?
The FCL340801021 is a unit-mount circuit breaker. It installs using feed-thru line and load side lug terminals rather than plugging onto an I-Line bus.
What frame size does the FCL340801021 circuit breaker belong to?
This breaker is part of the legacy Square D F-frame molded case circuit breaker family.
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