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Eaton / Cutler-Hammer CHB330 Miniature Circuit Breaker

  • 30A
  • 3 Pole
  • Bolt-On
Eaton / Cutler-Hammer CHB330
Miniature Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU CHB330
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  • 30A
  • 3 Pole
  • Bolt-On

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Eaton/Cutler-Hammer CHB330 3 Pole Circuit Breaker

Eaton / Cutler-Hammer CHB330 - 30A 3 Pole Miniature Circuit Breaker

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$480.00 In Stock

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Description

Providing essential circuit protection, the Eaton CHB330 is a 30A, 3-pole miniature breaker engineered for 240VAC applications. It utilizes standard thermal-magnetic technology to detect and interrupt overloads and short circuits. This device installs into Cutler-Hammer Type PB and PH panelboards, as well as compatible meter panels. The bolt-on configuration ensures a rigid connection. With a 10 kAIC rating and a Visi-Trip indicator, this HACR-rated component accepts 14-8 AWG conductors.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Part Number CHB330
Series CHB
Amperage 30A
Poles 3
Mounting Style Bolt-On
Voltage 240VAC
Phase 3
AIC Rating 10kA @ 240VAC
Fit and installation
Terminal Type Box Lugs
For Use With Type PB Panelboards, Type PH Panelboards, Meter Panels, Multi-Metering Modules
Wire Gauge 14-8 AWG
Max Wire 8 AWG
Min Wire 14 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
Available Options Padlock Attachment
Standards CSA C22.2 No. 5, Federal Specification W-P-131a, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Common Trip

Product FAQs

6 answers
What panelboards are compatible with the Eaton CHB330 circuit breaker?

The CHB330 is a bolt-on breaker specifically designed for older Eaton and Cutler-Hammer Type PB and Type PH panelboards, as well as compatible meter panels and multi-metering modules. It cannot be used in standard residential load centers that require plug-on CH breakers.

Can I use a CHB330 to replace a standard CH330 breaker?

No. While both are 30A, 3-pole breakers in the CH family, the CH330 is a plug-on breaker for standard load centers, whereas the CHB330 features a bolt-on connection for Type PB and PH panelboards. They are not interchangeable.

Is the Eaton CHB330 breaker HACR rated?

Yes, the CHB330 is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment that requires this specific rating.

How do you reset a tripped CHB330 circuit breaker?

When the CHB330 trips, the handle moves to a position between ON and OFF. To reset it, you must first push the handle firmly to the full OFF position, and then switch it back to the ON position.

What type of wire material can be used with the CHB330 breaker?

The box lugs on the CHB330 are rated for both copper (Cu) and aluminum (Al) conductors. Ensure your wire is sized between 14 AWG and 8 AWG to fit the terminals properly.

How does the thermal-magnetic trip mechanism function on the CHB330?

The CHB330 utilizes a fixed thermal-magnetic trip mechanism. The inverse time thermal element prevents nuisance tripping on mild overloads, while the magnetic instantaneous element reacts immediately to clear severe short-circuit faults.

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Reviews

4.8
Rated 4.8 out of 5 stars
Based on 4 reviews
Total 5 star reviews: 3 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Rating
Ratings
4 reviews
  • MG
    Mark G.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer CHB350 - 50A 3 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 4 out of 5 stars
    4/8/26
    Was what I needed

    This breaker was exactly what I needed. I did not give it 5 starts because it was SUPER expensive for this frame size breaker.

  • WB
    William B.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer CHB215 - 15A 2 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/5/25
    Breakers

    Work great, fast shipping. Product as advertised. Good site

  • HC
    Hb C.
    Flag of United States
    Reviewing
    Eaton / Cutler-Hammer CHB215 - 15A 2 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/9/21
    CHB BREAKER

    Excellent Service, Shipping Fast!!!! Super Breakers

  • MM
    Muhammad M.
    Flag of United States
    Reviewing
    Eaton / Cutler-Hammer CHB3100 - 100A 3 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    12/19/17
    Nice!

    Good experience, On time and fair price.