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Square D FI36060 Molded Case Circuit Breaker
- 60A
- 3 Pole
- I-Line
Square D
FI36060
Molded Case Circuit Breaker
Brand
Square D
SKU
FI36060
Quantity
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Square D FI36060 - 60A 3 Pole Molded Case Circuit Breaker
Re-Certified
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Square D FI36060 - 60A 3 Pole Molded Case Circuit Breaker
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| Brand | Square D |
|---|---|
| Part Number | FI36060 |
| Series | FI |
| Amperage | 60A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 200kA @ 480Y/277VAC, 200kA @ 480VAC, 100kA @ 600Y/347VAC, 100kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | FI |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Switchboards |
| 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, Undervoltage Release, Auxiliary Switch, 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, Non-Interchangeable Trip |
| Special Features | Current Limiting |
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Square D FI36060 - 60A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | FI36060-R |
| Series | FI |
| Amperage | 60A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 200kA @ 480Y/277VAC, 200kA @ 480VAC, 100kA @ 600Y/347VAC, 100kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | FI |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Switchboards |
| 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, Undervoltage Release, Auxiliary Switch, 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, Non-Interchangeable Trip |
| Special Features | Current Limiting |
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Description
Engineered for demanding industrial applications, the Square D FI36060 is a 3-pole, 60A molded case circuit breaker from the legacy F-Frame family. It provides robust thermal-magnetic protection with a high-interrupting capacity of 200kAIC at 480VAC. This current-limiting breaker minimizes let-through energy to safeguard downstream equipment during fault conditions. Designed for seamless integration, it mounts into Square D I-Line panelboards and switchboards. Replaced by the HRA36060.Specifications
| Brand | Square D |
|---|---|
| Part Number | FI36060-R |
| Series | FI |
| Amperage | 60A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 200kA @ 480Y/277VAC, 200kA @ 480VAC, 100kA @ 600Y/347VAC, 100kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | FI |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Switchboards |
| 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, Undervoltage Release, Auxiliary Switch, 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, Non-Interchangeable Trip |
| Special Features | Current Limiting |
Product FAQs
6 answersCan the FI36060 be installed in standard Square D NQ or NF panelboards?
No. The FI36060 utilizes an I-Line plug-on mounting style and is exclusively compatible with Square D I-Line panelboards and switchboards. It will not fit in NQ, NF, or QO series panels.
Why is the FI36060 classified as a current-limiting breaker?
Current-limiting breakers like the FI36060 are engineered to trip extremely fast during a short circuit. By clearing the fault in less than half a cycle, they reduce the peak let-through current and energy, which protects downstream wiring and equipment from severe thermal and magnetic damage.
What does the LI trip function on the FI36060 indicate?
The LI designation means the thermal-magnetic trip unit provides Long-Time (L) and Instantaneous (I) overcurrent protection. The long-time function protects against sustained overloads, while the instantaneous function provides immediate tripping during severe short circuits. Both the thermal and magnetic trip points are fixed on this specific model.
Is the FI36060 still manufactured, or is there a direct replacement?
The FI frame is a legacy product that has been superseded by the modern Square D PowerPact H-frame series. When upgrading or replacing this breaker, you will typically use an H-frame equivalent, but you must verify the required interrupting capacity to select the correct model, such as the HGA, HJA, HLA, or HRA series.
How does the I-Line mounting style work for the FI36060?
The I-Line connection allows the breaker to plug directly onto the busbar stack inside a Square D I-Line panelboard or switchboard. The line-side jaws engage the busbars for a secure phase connection, while the load side uses standard mechanical lugs for the outgoing wires.
What safety precautions are required when installing an I-Line breaker like the FI36060?
Always ensure the panelboard is fully de-energized before installation. While I-Line breakers feature a plug-on design, installing them on a live busbar poses a severe arc flash hazard. Proper personal protective equipment and lockout-tagout procedures are mandatory.
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