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Square D FCL34100 Molded Case Circuit Breaker
- 100A
- 3 Pole
- Unit Mount
Square D
FCL34100
Molded Case Circuit Breaker
Brand
Square D
SKU
FCL34100
Quantity
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Square D FCL34100 - 100A 3 Pole Molded Case Circuit Breaker
Re-Certified
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Square D FCL34100 - 100A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | FCL34100 |
| Series | FCL |
| Amperage | 100A |
| 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, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, HACR Rated, Visual Trip Indicator |
| Special Features | Current Limiting |
Quantity
Square D FCL34100 - 100A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | FCL34100-R |
| Series | FCL |
| Amperage | 100A |
| 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, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, HACR Rated, Visual Trip Indicator |
| Special Features | Current Limiting |
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Description
Designed for heavy-duty commercial applications, this 100-amp F-Frame breaker restricts let-through energy to shield downstream equipment from severe faults. It installs into standard Square D enclosures, switchboards, and motor control centers using unit-mount lugs. Featuring a 65kAIC rating at 480VAC, the thermal-magnetic unit includes a visual trip indicator and HACR certification. Note that this legacy component has been superseded by the HJL36100 for newer installations.Specifications
| Brand | Square D |
|---|---|
| Part Number | FCL34100-R |
| Series | FCL |
| Amperage | 100A |
| 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, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, HACR Rated, Visual Trip Indicator |
| Special Features | Current Limiting |
Product FAQs
6 answersWhat types of equipment is the FCL34100 compatible with?
This unit-mount F-frame breaker is designed for installation in standard Square D enclosures, switchboards, and motor control centers.
Does the FCL34100 plug into an I-Line panelboard?
No. This is a unit-mount, feed-thru circuit breaker equipped with lugs on both the line and load sides. It is not compatible with I-Line bussing.
What is the modern replacement for the legacy FCL34100 circuit breaker?
The FCL34100 is a legacy F-frame component. For new installations or panel upgrades, it has been superseded by the Square D PowerPact H-frame series, specifically catalog number HJL36100.
How does the current-limiting feature of the FCL34100 operate?
As a current-limiting breaker, it restricts let-through energy and peak let-through current during a short circuit. This rapid clearing action shields downstream electrical equipment from severe thermal and mechanical stress.
Are the thermal and magnetic trip functions adjustable on this model?
No. The FCL34100 features a thermal-magnetic trip unit with fixed long-time (thermal) and fixed instantaneous (magnetic) trip settings.
What wire sizes are accepted by the standard lugs on this breaker?
The standard feed-thru lugs accept 14 to 1/0 AWG copper wire, or 12 to 1/0 AWG aluminum wire.
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