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Eaton / Cutler-Hammer KDC3300 Molded Case Circuit Breaker
- 300A
- 3 Pole
- Panel Mount
Eaton / Cutler-Hammer
KDC3300
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
KDC3300
Quantity
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Eaton / Cutler-Hammer KDC3300 - 300A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer KDC3300 - 300A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | KDC3300 |
| Series | KDC |
| Amperage | 300A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 100kA @ 480VAC, 50kA @ 600VAC, 22kA @ 250VDC |
| Frame Type | K |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 3 AWG - 350 kcmil (Al/Cu) |
| Max Wire | 350 kcmil |
| Min Wire | 3 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, Rotary Handle |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | ABS, CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, HACR Rated, High Interrupting Capacity, Interchangeable Trip Unit, Reverse Feed, Trip-Free Mechanism, Visual Trip Indicator |
Quantity
Eaton / Cutler-Hammer KDC3300 - 300A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | KDC |
| Amperage | 300A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 100kA @ 480VAC, 50kA @ 600VAC, 22kA @ 250VDC |
| Frame Type | K |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 3 AWG - 350 kcmil (Al/Cu) |
| Max Wire | 350 kcmil |
| Min Wire | 3 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, Rotary Handle |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | ABS, CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, HACR Rated, High Interrupting Capacity, Interchangeable Trip Unit, Reverse Feed, Trip-Free Mechanism, Visual Trip Indicator |
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Description
Designed for high-fault environments, the Eaton KDC3300 is a 3-pole, 300A Series C molded case circuit breaker. It utilizes fixed thermal and adjustable magnetic trip functions to safeguard industrial power networks. This K-Frame device installs into Eaton motor control centers, switchboards, and Series C panelboards. It includes standard lugs that accept 3 AWG to 350 kcmil conductors. With a 100 kAIC rating at 480VAC, it provides exceptional current-limiting performance and is HACR rated.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | KDC3300 |
| Series | KDC |
| Amperage | 300A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 100kA @ 480VAC, 50kA @ 600VAC, 22kA @ 250VDC |
| Frame Type | K |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 3 AWG - 350 kcmil (Al/Cu) |
| Max Wire | 350 kcmil |
| Min Wire | 3 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, Rotary Handle |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | ABS, CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, HACR Rated, High Interrupting Capacity, Interchangeable Trip Unit, Reverse Feed, Trip-Free Mechanism, Visual Trip Indicator |
Product FAQs
7 answersWhat types of equipment are compatible with the KDC3300?
This K-Frame breaker is designed for installation in Eaton Series C panelboards, switchboards, and motor control centers.
What is the difference between the KD3300, HKD3300, and KDC3300 breakers?
These are all 300A, 3-pole K-Frame breakers, but they feature different interrupting capacities. The KD3300 is standard capacity (35kAIC at 480VAC), the HKD3300 is high capacity (65kAIC at 480VAC), and the KDC3300 is ultra-high capacity (100kAIC at 480VAC). They share the same physical dimensions and accept the same accessories.
Can the KDC3300 be reverse fed?
Yes, Eaton Series C K-Frame thermal magnetic circuit breakers are suitable for reverse feed applications. Always verify that no voltage is present before servicing reverse-fed equipment.
What is the purpose of the adjustable magnetic trip on this breaker?
The adjustable magnetic trip allows you to set the instantaneous short-circuit trip threshold. This provides flexibility for coordinating with downstream breakers or preventing nuisance tripping during high inrush currents, such as motor starting.
Does the KDC3300 provide ground fault protection?
No, this breaker features an LI (Long-Time and Instantaneous) trip unit, which provides overload and short-circuit protection only. It does not include integral ground fault protection.
Which replacement lug kit matches the standard wire range for this breaker?
The standard single-conductor lug kit for the 3 AWG to 350 kcmil wire range on Eaton K-Frame breakers is catalog number TA300K.
Can the KDC3300 be used in DC applications?
Yes, this breaker is rated for up to 250VDC with an interrupting capacity of 22kAIC. When used in DC systems, ensure the wiring configuration matches Eaton guidelines for the required voltage.
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