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Eaton / Cutler-Hammer KDC3175 Molded Case Circuit Breaker
- 175A
- 3 Pole
- Panel Mount
Eaton / Cutler-Hammer
KDC3175
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
KDC3175
Quantity
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Eaton / Cutler-Hammer KDC3175 - 175A 3 Pole Molded Case Circuit Breaker
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Description
Designed for high-capacity power distribution, the Eaton KDC3175 is a 175A, 3-pole molded case circuit breaker. As part of the Series C family, it delivers robust overcurrent protection for demanding commercial and industrial applications. The K-frame breaker installs into Eaton switchboards, panelboards, and motor control centers. It comes equipped with line and load lugs for secure wire termination. With a 100 kAIC rating at 480V, this HACR-rated MCCB offers reliable thermal-magnetic trip.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | KDC |
| Amperage | 175A |
| 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
5 answersWhat is the difference between the Eaton KD3175, HKD3175, and KDC3175 circuit breakers?
The primary difference is their short-circuit interrupting ratings. The KD3175 is rated for 35kA at 480VAC, the HKD3175 is rated for 65kA at 480VAC, and the KDC3175 offers the highest interrupting capacity at 100kA at 480VAC. All three share the same physical Series C K-frame dimensions and mounting footprint.
What types of equipment are compatible with the KDC3175?
The KDC3175 is a Series C K-frame circuit breaker designed for installation in Eaton and Cutler-Hammer switchboards, motor control centers, and Series C panelboards. It requires standard K-frame mounting hardware and chassis space.
Can the Eaton KDC3175 be reverse fed?
Yes, the KDC3175 is suitable for reverse feed applications. Because it uses a thermal-magnetic trip unit without specific line and load directional restrictions, power can be supplied to either the top or bottom terminals.
How does the trip unit on the KDC3175 operate?
The KDC3175 features a thermal-magnetic trip unit with an LI (Long-Time, Instantaneous) function. It provides fixed thermal protection for standard overloads and an adjustable magnetic dial, allowing electricians to fine-tune the instantaneous short-circuit trip point for proper system coordination.
Does the KDC3175 provide ground fault protection?
No, the KDC3175 is equipped with a standard LI (Long-Time, Instantaneous) thermal-magnetic trip unit. It does not include ground fault sensing. If ground fault protection is required, a breaker with an electronic trip unit featuring LSIG or LIG functions must be used.
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