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Square D FI36090 Molded Case Circuit Breaker
- 90A
- 3 Pole
- I-Line
Square D
FI36090
Molded Case Circuit Breaker
Brand
Square D
SKU
FI36090
Quantity
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Square D FI36090 - 90A 3 Pole Molded Case Circuit Breaker
New
Quantity
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Square D FI36090 - 90A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | FI36090 |
| Series | FI |
| Amperage | 90A |
| 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 |
| 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, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Lugs |
| 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 |
| Special Features | Current Limiting |
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Square D FI36090 - 90A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | FI36090-R |
| Series | FI |
| Amperage | 90A |
| 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 |
| 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, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Lugs |
| 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 |
| Special Features | Current Limiting |
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Description
Built for heavy-duty commercial applications, the FI36090 is a 90-amp, 3-pole current-limiting breaker from Square D. It actively restricts let-through energy during short circuits to safeguard downstream electrical components. Designed for I-Line panelboards, this plug-on MCCB serves as a direct replacement for older installations, though the series is succeeded by the PowerPact HRA36090U31X. It features a 200kAIC rating at 480V, thermal-magnetic protection, and a Visi-Trip indicator.Specifications
| Brand | Square D |
|---|---|
| Part Number | FI36090 |
| Series | FI |
| Amperage | 90A |
| 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 |
| 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, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Lugs |
| 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 |
| Special Features | Current Limiting |
Product FAQs
6 answersWhat panelboards are compatible with the FI36090 circuit breaker?
This breaker is designed exclusively for use in Square D I-Line panelboards and switchboards. It features an I-Line style plug-in connection that mounts directly to the panel busbar.
What does the current limiting designation mean for this breaker?
As a current-limiting breaker, the FI36090 clears short circuits extremely fast. This restricts the let-through energy and peak current, providing enhanced protection for downstream electrical components.
How does the I-Line mounting system work?
The I-Line system uses plug-on jaws that connect directly to the panelboard busbar. This allows for faster installation and easier phase balancing compared to traditional bolt-on circuit breakers.
Are the trip settings adjustable on the FI36090?
No. This breaker features a fixed thermal and fixed magnetic trip unit, providing standard long-time and instantaneous (LI) protection without adjustable dials.
What wire sizes are accepted by the lugs on this breaker?
The standard lugs accept 14 AWG to 1/0 AWG copper or aluminum wire. Always ensure proper torque specifications are applied during installation as outlined by Schneider Electric.
Is the FI36090 still actively manufactured by Square D?
The FI frame is a legacy molded case circuit breaker. While exact replacements like the FI36090 are still sourced for existing panels, the series has been succeeded by the modern Square D PowerPact H-frame breakers for new installations.
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