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Eaton / Cutler-Hammer HJD3175 Molded Case Circuit Breaker

  • 175A
  • 3 Pole
  • Unit Mount
Eaton / Cutler-Hammer HJD3175
Molded Case Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU HJD3175
Select Item Condition
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  • 175A
  • 3 Pole
  • Unit Mount

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HJD3175

Eaton / Cutler-Hammer HJD3175 - 175A 3 Pole Molded Case Circuit Breaker

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$2,239.99 In Stock

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Description

Built for heavy-duty power distribution, the Eaton HJD3175 provides 175A of reliable thermal-magnetic protection. This 3-pole Series C breaker utilizes a rugged J-Frame architecture, delivering long-time and instantaneous (LI) trip functions to safeguard critical commercial and industrial circuits. Designed for unit mount configurations, it fits perfectly into Eaton switchboards, panelboards, and motor control centers. The breaker comes equipped with TA250KB lugs for standard Al/Cu wire.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Part Number HJD3175
Series HJD
Amperage 175A
Poles 3
Mounting Style Unit Mount
Voltage 240VAC, 480VAC, 600VAC, 250VDC
Phase 3
AIC Rating 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC, 22kA @ 250VDC
Fit and installation
Terminal Type Lugs
For Use With Eaton Series C Panelboards, Switchboards, Motor Control Centers
Wire Gauge 4 AWG - 350 kcmil (Al/Cu)
Max Wire 350 kcmil
Min Wire 4 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Adjustable Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch
Accessories Line and Load Lugs Included (TA250KB)
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB-1, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Reverse Feed, High Interrupting Capacity

Product FAQs

6 answers
What equipment is the HJD3175 designed to be installed in?

This unit mount breaker is engineered for Eaton Series C panelboards, switchboards, and motor control centers.

What does the H in the HJD3175 catalog number indicate?

The H designates a high interrupting capacity frame. This model provides up to 65kA of fault protection at 480VAC, which is higher than standard JD frame breakers.

How is the trip unit configured on this breaker?

It comes with a factory-installed, non-interchangeable thermal-magnetic trip unit. The thermal element is fixed for long-time overload protection, while the magnetic instantaneous trip can be adjusted to coordinate with other devices in your system.

Are lugs included with the HJD3175, and what wire sizes do they accept?

Yes, it includes line and load side lug terminals that accept 4 AWG to 350 kcmil aluminum or copper conductors.

Will this breaker replace an older Cutler-Hammer or Westinghouse HJD3175?

Yes. Eaton manufactures the Series C line, making this a direct drop-in replacement for legacy Cutler-Hammer and Westinghouse breakers sharing the HJD3175 catalog number.

Is this breaker suitable for direct current applications?

Yes, the HJD3175 is rated for DC systems up to 250VDC with a 22kA interrupting capacity, making it suitable for specific industrial DC control and power circuits.

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Reviews

5.0
Rated 5.0 out of 5 stars
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
Rating
Ratings
1 review
  • JW
    Joe W.
    Verified Buyer
    Reviewing
    Siemens HJD63F400 Circuit Breaker Frame
    I recommend this product
    Rated 5 out of 5 stars
    7/16/26
    Exactly what we needed, delivered complete and on time.

    SuperBreakers had exactly what we needed (Breaker, Trip Unit, lug kits) - the breaker came quickly and with trip unit installed (ordered as a separate item) making integration quick and easy.

    Solid phone support and communication re: tracking - overall a very good purchasing experience.