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Square D FCL34025 Molded Case Circuit Breaker
- 25A
- 3 Pole
- Unit Mount
Square D
FCL34025
Molded Case Circuit Breaker
Brand
Square D
SKU
FCL34025
Quantity
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Square D FCL34025 - 25A 3 Pole Molded Case Circuit Breaker
New
Quantity
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Description
Designed to mitigate high fault currents, the Square D FCL34025 is a 3-pole, 25A current-limiting MCCB built for extra-high interrupting capabilities. This legacy F-frame breaker features a unit mount design for Square D switchboards and motor control centers. It is replaced by the PowerPact HJL36025. Utilizing a fixed thermal-magnetic trip for LI protection, it achieves 100kAIC at 240V and 65kAIC at 480V to ensure robust safety for critical infrastructure.Specifications
| Brand | Square D |
|---|---|
| Part Number | FCL34025 |
| Series | FCL |
| Amperage | 25A |
| 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 | 14-4 AWG (Cu), 12-4 AWG (Al) |
| Max Wire | 4 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| 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, Padlock Attachment |
|---|---|
| Accessories | Lugs (AL50FA) |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CE, CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, HACR Rated, Visual Trip Indicator |
| Special Features | Current Limiting |
Product FAQs
6 answersIs the FCL34025 still manufactured, or is there a modern replacement?
The FCL34025 is a legacy F-frame breaker. For modern upgrades or replacements, Square D has superseded this model with the PowerPact H-frame series, specifically catalog number HJL36025.
What does the current limiting feature do on the FCL34025?
The current limiting design allows the breaker to clear severe faults rapidly, significantly reducing the peak let-through current and energy. This protects sensitive downstream devices and infrastructure from thermal and magnetic stress during a short circuit.
What terminal lugs are used on this 25A breaker?
The FCL34025 uses standard AL50FA line and load lugs. These lugs accommodate 14 to 4 AWG copper wire or 12 to 4 AWG aluminum wire.
Is the FCL34025 rated for HVAC equipment?
Yes, this breaker is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration motor loads.
How is a unit mount breaker like the FCL34025 installed?
As a unit mount or feed-thru breaker, it bolts directly to the backpan or mounting plate inside compatible Square D enclosures, switchboards, and motor control centers. It does not plug onto a busbar like an I-Line breaker.
How can I visually verify if the FCL34025 has tripped?
This breaker features a visual trip indicator. When a fault occurs, the operating handle moves to a central tripped position between the ON and OFF markings, providing clear visual confirmation before you reset the circuit.
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