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Square D KC34110 Molded Case Circuit Breaker
- 110A
- 3 Pole
- I-Line
Square D
KC34110
Molded Case Circuit Breaker
Brand
Square D
SKU
KC34110
Quantity
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Square D KC34110 - 110A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D KC34110 - 110A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | KC34110 |
| Series | KC |
| Amperage | 110A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 10kA @ 250VDC |
| Frame Type | KC |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | 4 AWG - 350 kcmil |
| 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, Motor Operator |
|---|---|
| Accessories | Lugs (AL250KA) |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Current Limiting, Extra High Interrupting Capacity |
Quantity
Square D KC34110 - 110A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | KC34110-R |
| Series | KC |
| Amperage | 110A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 10kA @ 250VDC |
| Frame Type | KC |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | 4 AWG - 350 kcmil |
| 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, Motor Operator |
|---|---|
| Accessories | Lugs (AL250KA) |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Current Limiting, Extra High Interrupting Capacity |
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Description
Engineered for commercial and industrial applications, the Square D KC34110 is a 3-pole, 110A molded case circuit breaker. It provides reliable overcurrent protection for heavy-duty electrical systems. This unit mounts into Square D I-Line panelboards and switchboards using a plug-on connection. As a discontinued K-Frame model, it is replaced by the modern JJA36110 for facility upgrades.Specifications
| Brand | Square D |
|---|---|
| Part Number | KC34110 |
| Series | KC |
| Amperage | 110A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 10kA @ 250VDC |
| Frame Type | KC |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | 4 AWG - 350 kcmil |
| 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, Motor Operator |
|---|---|
| Accessories | Lugs (AL250KA) |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Current Limiting, Extra High Interrupting Capacity |
Product FAQs
6 answersWhich panelboards are compatible with the KC34110?
This breaker is designed exclusively for Square D I-Line panelboards and switchboards. It uses an I-Line style plug-in connection that attaches directly to the bus, eliminating the need for line-side bolted connections.
What is the modern replacement for this discontinued K-Frame breaker?
For facility upgrades, this legacy KC breaker is directly replaced by the PowerPact J-Frame model JJA36110. The modern J-Frame equivalent maintains the same 110A rating and 65kA at 480VAC interrupting capacity while fitting into the same I-Line bus structure.
Are the trip settings adjustable on this unit?
Yes, it features fixed thermal and adjustable magnetic trip functions. The adjustable magnetic trip allows electricians to fine-tune the instantaneous short-circuit protection based on the specific load and coordination requirements of the electrical system.
What does the LI trip function code mean on this model?
The LI code indicates that the thermal magnetic trip unit includes Long-Time (L) and Instantaneous (I) protection. Long-Time handles gradual thermal overload conditions, while Instantaneous provides immediate magnetic tripping during a severe short circuit.
What size wire do the load lugs on the KC34110 accept?
The standard load-side lugs accommodate wire gauges ranging from 4 AWG up to 350 kcmil. Always verify that your chosen conductor material and insulation rating align with local electrical codes and the terminal torque requirements.
Can this molded case circuit breaker be used in DC applications?
Yes, in addition to its standard AC capabilities, it is rated for DC power distribution. It provides up to 10kA interrupting capacity at 250VDC, making it suitable for select industrial DC control or battery configurations.
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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
- TDTammy D.Verified BuyerReviewingSquare D KC34200 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/9/26Breakers
great service!! I had bought 3 different breakers & there was one that i had to return. I called as soon as i realized it was wrong.( my fault) I had my return RMA in about 5 minutes of the phone call. Highly recommend!!