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Square D KH36090 Molded Case Circuit Breaker
- 90A
- 3 Pole
- I-Line
Square D
KH36090
Molded Case Circuit Breaker
Brand
Square D
SKU
KH36090
Quantity
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Square D KH36090 - 90A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D KH36090 - 90A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | KH36090 |
| Series | KH |
| Amperage | 90A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | KH |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | 4 AWG - 350 kcmil (Al/Cu) |
| Max Wire | 350 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs (AL250KA) |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity |
Sold out
Quantity
Square D KH36090 - 90A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | KH36090-R |
| Series | KH |
| Amperage | 90A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | KH |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | 4 AWG - 350 kcmil (Al/Cu) |
| Max Wire | 350 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs (AL250KA) |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity |
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Description
Built for industrial power systems, the Square D KH36090 is a 90A, 3-pole molded case circuit breaker. It utilizes thermal-magnetic trip technology to deliver dependable long-time and instantaneous (LI) protection. The breaker installs into standard Square D I-Line panelboards and switchboards. When modernizing infrastructure, this unit is replaced by the JJA36090 model. With a 35kA interrupting rating at 480VAC, it handles demanding loads.Specifications
| Brand | Square D |
|---|---|
| Part Number | KH36090 |
| Series | KH |
| Amperage | 90A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | KH |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | 4 AWG - 350 kcmil (Al/Cu) |
| Max Wire | 350 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs (AL250KA) |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity |
Product FAQs
6 answersWhat panelboards accept the KH36090 circuit breaker?
This K-frame breaker is designed specifically for Square D I-Line panelboards and switchboards. It utilizes a plug-on jaw connection that mounts directly to the I-Line bus stack.
What is the direct replacement for the discontinued KH36090?
The legacy K-frame series has been superseded by the PowerPact J-frame. The manufacturer recommended replacement for this 90A I-Line breaker is catalog number JJA36090.
How does the LI trip unit function on this breaker?
The LI designation indicates Long-Time and Instantaneous trip functions. The thermal element provides fixed Long-Time overload protection, while the magnetic element offers an adjustable Instantaneous response to clear short circuits based on your specific coordination requirements.
What type of conductors can be terminated on the KH36090 lugs?
The standard mechanical lugs accept either aluminum or copper (Al/Cu) conductors ranging from 4 AWG to 350 kcmil.
Is this breaker suitable for DC power systems?
Yes, the KH36090 is rated for DC applications up to 250VDC, where it provides a 10kA interrupting capacity.
How is the I-Line connection secured during installation?
The breaker utilizes a plug-on jaw design that engages the I-Line bus stack. Once seated, a captive retaining screw on the breaker bracket must be torqued to the panelboard backpan to ensure a secure mechanical hold.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.
Total 5 star reviews: 1 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
1 review
- DPDouglas P.ReviewingSquare D KH36225 - 225A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars5/26/23I got it the next
I got it the next day and it worked just like it should. Thank you