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Eaton / Cutler-Hammer K3100 Molded Case Circuit Breaker
- 100A
- 3 Pole
- Bolt-On
Eaton / Cutler-Hammer
K3100
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
K3100
Quantity
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Eaton / Cutler-Hammer K3100 - 100A 3 Pole Molded Case Circuit Breaker
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Eaton / Cutler-Hammer K3100 - 100A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | K3100 |
| Series | K |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 22kA @ 480VAC, 22kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Series C Panelboards, Westinghouse Panelboards, Motor Control Centers, Switchboards |
| 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, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Lug Kit (TA300K) |
| Standards | HACR, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Quantity
Eaton / Cutler-Hammer K3100 - 100A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | K3100-R |
| Series | K |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 22kA @ 480VAC, 22kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Series C Panelboards, Westinghouse Panelboards, Motor Control Centers, Switchboards |
| 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, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Lug Kit (TA300K) |
| Standards | HACR, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
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Description
Built for commercial applications, the Eaton K3100 is a 3-pole, 100A molded case circuit breaker from the Series C family. It delivers robust 600VAC power distribution capabilities. This K-Frame breaker installs into Eaton Series C panelboards, motor control centers, and switchboards. It serves as a cross-reference for older Westinghouse systems and is replaced by the KD3100. Featuring fixed thermal and magnetic trip units, it provides standard LI protection and carries a 25kAIC rating at 240V.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | K3100 |
| Series | K |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 22kA @ 480VAC, 22kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Series C Panelboards, Westinghouse Panelboards, Motor Control Centers, Switchboards |
| 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, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Lug Kit (TA300K) |
| Standards | HACR, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Product FAQs
7 answersWhat enclosures and panels are compatible with the K3100?
This K-Frame breaker is designed for bolt-on installation in Eaton Series C panelboards, motor control centers, and switchboards. It is also fully compatible with legacy Westinghouse panelboards.
Can the KD3100 be used as a replacement for the K3100?
Yes, the KD3100 is the direct, higher-interrupting replacement for the K3100. While the K3100 is rated for 25kA at 240VAC, the KD3100 provides 65kA at 240VAC. Both share the same physical dimensions and mounting requirements.
What wire sizes do the standard lugs on this breaker accept?
The standard lugs accept aluminum or copper conductors ranging from 3 AWG to 350 kcmil.
Can the K3100 be reverse fed?
Yes, this thermal-magnetic breaker is suitable for reverse feed applications.
What does the LI trip function indicate on this breaker?
The LI designation means the thermal-magnetic trip unit provides Long-Time overload protection and Instantaneous short-circuit protection. Both the thermal and magnetic settings are fixed on the K3100.
Can I adjust the trip settings on the K3100?
No, the K3100 features a fixed thermal and fixed magnetic trip unit. If you require adjustable settings, you will need a different breaker model within the Series C family.
Is the K3100 suitable for HVAC equipment?
Yes, Series C K-Frame breakers are HACR rated, meaning they are approved for use with heating, air conditioning, and refrigeration equipment.
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