Skip to main content
Expedited shipping available at checkout

Eaton / Cutler-Hammer BAB3045HS Miniature Circuit Breaker

  • 45A
  • 3 Pole
  • Bolt-On
Eaton / Cutler-Hammer BAB3045HS
Miniature Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU BAB3045HS
Select Item Condition
Earn 414 SuperPoints
  • 45A
  • 3 Pole
  • Bolt-On

Quantity

Bulk Pricing
Send your parts list for a volume quote.
Eaton BAB3045HS 3 Pole Circuit Breaker

Eaton / Cutler-Hammer BAB3045HS - 45A 3 Pole Miniature Circuit Breaker

New

$414.08 In Stock

Quantity

Similar Items

Description

Part of the Quicklag family, the Eaton BAB3045HS is a 3-pole, 45A miniature circuit breaker featuring a factory-installed 120-240VAC shunt trip for remote operation. Built for commercial and industrial use, it delivers reliable thermal-magnetic protection. It installs via bolt-on mounting into Eaton Pow-R-Line, Westinghouse, Cutler-Hammer, and Bryant panelboards. It also replaces legacy QNBL3045HS and QB3045HS models. Rated for 10kAIC at 240VAC, this HACR-rated breaker ensures robust defense.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Series BAB
Amperage 45A
Poles 3
Mounting Style Bolt-On
Voltage 240VAC
Phase 3
AIC Rating 10kA @ 240VAC
Fit and installation
Frame Type BAB
Terminal Type Box Lugs
For Use With Eaton Pow-R-Line Panelboards, Westinghouse Panelboards, Cutler-Hammer Panelboards, Bryant Panelboards, Challenger Panelboards
Wire Gauge 14-4 AWG (Al/Cu)
Max Wire 4 AWG
Min Wire 14 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed
Standards and features
Available Options Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment
Accessories Shunt Trip (120-240VAC)
Standards CSA C22.2 No. 5, HACR, UL 489
Approval CSA, UL
Temp Rating 40C

Product FAQs

7 answers
What does the HS suffix indicate on the Eaton BAB3045HS?

The HS suffix means this breaker is equipped with a factory-installed 120-240V AC shunt trip. This allows the breaker to be tripped remotely via an external control signal.

What older circuit breakers can the BAB3045HS replace?

This breaker serves as a direct replacement for legacy QNBL3045HS and QB3045HS models. It maintains the same physical footprint and bolt-on connection for seamless retrofitting.

Which panelboards accept this Quicklag bolt-on breaker?

The BAB3045HS is compatible with Eaton Pow-R-Line, Westinghouse, Cutler-Hammer, Bryant, and Challenger panelboards designed for BAB frame breakers.

Is the BAB3045HS rated for HVAC applications?

Yes, this breaker carries an HACR rating, making it approved for use with heating, air conditioning, and refrigeration equipment.

What are the wire size requirements for the BAB3045HS terminals?

The box lugs on this breaker accommodate 14 AWG to 4 AWG wire. They are rated for both aluminum and copper conductors.

Does this breaker require a specific mounting hardware kit?

No additional kit is required. The BAB3045HS features a standard bolt-on design that fastens directly to the busbar of compatible panelboards using the integrated mounting screws.

Can the trip settings on the BAB3045HS be adjusted?

No, this breaker features a fixed thermal-magnetic trip unit with non-interchangeable long-time and instantaneous (LI) trip functions.

SuperClub

Join free. Get 500 SuperPoints.

Earn points on eligible purchases and redeem them at checkout.

100 SuperPoints = $1 off.

Warranties

60-Day Warranty

Your purchase includes 60 days of SuperBreakers warranty coverage.

Get a Quote

Don’t see what you’re looking for?

We source obsolete and hard-to-find parts every day.

Shipping

Free Shipping Policy

Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.

Read our full shipping policy

Same Day Shipping

We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.

Expedited Shipments

Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.

International Shipping

All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.

Reviews

4.9
Rated 4.9 out of 5 stars
Based on 164 reviews
Reviews Summary
Customers say these breakers function as intended and arrive quickly. Fast shipping is consistently mentioned across reviews, with many noting timely delivery and secure packaging. Customers appreciate competitive pricing and the availability of items in stock. Products arrive in good condition, well-packaged, and work properly upon installation. Common feedback addresses responsive customer service and reliable order fulfillment. Most customers report smooth purchasing experiences and indicate they will return for future orders.
Rating
Ratings
164 reviews
  • RS
    Ross S.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer BAB1020 - 20A 1 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/21/26
    Breakers

    The right breakers at a great price.

  • JH
    Jason H.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer BAB3080H - 80A 3 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/16/26
    Excellent Experience

    We placed our first order with superbreakers.com recently for a breaker we weren't able to acquire locally. I ordered the breaker way ahead of time because I've had issues with shipping for products purchased online in the past. The estimate for the item when I initially ordered was 3 days. Without adding an expedited shipping options, the breaker arrived the next day. We installed it this week, and so far so good. In my opinion, they sell quality parts and have excellent turn around time. Very impressed.

  • RE
    Reliant E. S.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer BAB1030 - 30A 1 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/13/26
    easy and quick

    quick and always has what I need

  • LF
    Lincoln F.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer BAB3030H - 30A 3 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/12/26
    Mstr Electrician

    Came on time, works great! Always good quality, dependable service. Thanks again.

  • DN
    Douglas N.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer BAB2020 - 20A 2 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/3/26
    Church

    Did the job all is great thank you