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Square D IF36090 Molded Case Circuit Breaker
- 90A
- 3 Pole
- I-Line
Square D
IF36090
Molded Case Circuit Breaker
Brand
Square D
SKU
IF36090
Quantity
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Square D IF36090 - 90A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial and industrial facilities, the Square D IF36090 is a 3-pole, 90A molded case circuit breaker from the I-Limiter series. It utilizes standard thermal-magnetic trip technology to safeguard critical circuits. The unit is designed with an I-Line plug-on connection, allowing for rapid installation into compatible Square D panelboards. Rated at 200kAIC at 480VAC, this current-limiting breaker minimizes fault damage. It can be replaced by the HRA36090 for future upgrades.Specifications
| Brand | Square D |
|---|---|
| Part Number | IF36090-R |
| Series | IF |
| Amperage | 90A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 200kA @ 480VAC, 100kA @ 600VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D I-Line Panelboards |
| 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 | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, HACR Rated, Common Trip, Trip-Free Mechanism |
| Special Features | Current Limiting |
Product FAQs
6 answersWhich panelboards accept the IF36090 circuit breaker?
This breaker mounts exclusively in Square D I-Line panelboards and switchboards. The plug-on jaw connections clamp directly onto the I-Line bus assembly for rapid installation.
How does the I-Limiter design affect fault clearing on the IF36090?
As a current-limiting breaker, it is engineered to clear high-level short circuits in less than a half-cycle. This rapid response significantly reduces peak let-through current and thermal energy, protecting sensitive downstream components from severe fault damage.
What type of load connections does the IF36090 use?
The breaker is equipped with standard mechanical lugs on the load side, which accept 14 to 1/0 AWG copper or 12 to 1/0 AWG aluminum wire. The line side utilizes the I-Line plug-on jaw connection.
Can the IF36090 be reverse fed?
No, I-Line breakers cannot be reverse fed. The line side features specialized plug-on jaws designed exclusively for the panelboard busbar, while the load side uses standard mechanical lugs.
What does the LI trip function code indicate on the IF36090?
The LI designation means the thermal-magnetic trip unit provides Long-Time (L) protection for thermal overloads and Instantaneous (I) protection for short circuits. Both settings are fixed on this specific model.
Is there a modern replacement for the IF36090?
Yes, the Square D HRA36090 from the PowerPact H-frame series serves as the modern upgrade path for this 90A, 3-pole I-Line breaker.
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