Eaton / Cutler-Hammer HFDDC3175W Molded Case Circuit Breaker
- 175A
- 3 Pole
- Panel Mount
Quantity
Eaton / Cutler-Hammer HFDDC3175W - 175A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built specifically for photovoltaic systems, the HFDDC3175W is a 3-pole, 175A molded case circuit breaker from Eaton's Series C F-Frame family. It is designed for industrial environments, offering robust performance in solar combiner boxes. This unit installs into Eaton Series C panelboards. Supplied without terminals (W suffix), it allows for custom lug configurations. Rated 42kAIC at 600V, it features fixed thermal-magnetic trip units for dependable LI defense.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HFDDC3175W |
| Series | HFDDC |
| Amperage | 175A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 600VAC, 250VDC, 600VDC |
| Phase | 3 |
| AIC Rating | 42kA @ 600VAC, 42kA @ 250VDC, 42kA @ 600VDC |
| Frame Type | HFDDC |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Solar Combiner Boxes |
| 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, Lug Kits |
|---|---|
| Accessories | Without Terminals |
| Standards | UL 489, UL 489B |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Photovoltaic Rated, 50C Ambient Calibration, Reverse Feed, Non-Interchangeable Trip, High Interrupting Capacity |
Product FAQs
8 answersDoes the HFDDC3175W come with mounting lugs?
No. The W suffix in the catalog number indicates this breaker is supplied without line or load terminals. Lugs must be sourced and installed separately based on your specific wire size and material requirements.
What frame size is the Eaton HFDDC3175W?
This breaker is part of the Eaton Series C F-Frame family. It shares the same physical footprint as other F-Frame breakers, allowing for straightforward integration into existing F-Frame panel spaces.
Can the HFDDC3175W be used in direct current (DC) systems?
Yes. It is specifically rated for both AC and DC systems, making it highly suitable for solar combiner boxes and photovoltaic applications. It provides a 42kA interrupting capacity at both 250VDC and 600VDC.
How does this breaker mount into a panelboard?
The HFDDC3175W is a bolt-on circuit breaker. It secures directly to the busbar using mechanical fasteners in compatible Eaton Series C panelboards and switchboards.
Is the trip unit on the HFDDC3175W adjustable?
No. This breaker is equipped with a thermal-magnetic trip unit featuring fixed long-time (thermal) and fixed instantaneous (magnetic) trip functions. It cannot be adjusted in the field.
What equipment accepts the HFDDC3175W breaker?
It is designed for use in Eaton Series C panelboards, switchboards, motor control centers, and solar combiner boxes that are configured to accept F-Frame molded case circuit breakers.
Are Eaton Series C F-Frame breakers suitable for reverse feeding?
Yes. Standard Eaton F-Frame thermal-magnetic circuit breakers, including the HFDDC series, are suitable for reverse feed applications.
What is the difference between the HFDDC3175W and the HFDDC3175L?
The W suffix indicates the breaker is supplied without terminals. The HFDDC3175L is the exact same 175A breaker but comes factory-equipped with standard line and load lug terminals.
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