NEW Summer 2026 SuperGear! SuperPoints Accepted »

Eaton / Cutler-Hammer J3100 - 100A 3 Pole Molded Case Circuit Breaker

Brand Eaton / Cutler-Hammer
SKU J3100
4.0
Rated 4.0 out of 5 stars
1 Review
Eaton/Cutler-Hammer J3100 3 Pole Circuit Breaker
Free Shipping Over $99

Eaton / Cutler-Hammer J3100 - 100A 3 Pole Molded Case Circuit Breaker

Brand Eaton / Cutler-Hammer
SKU J3100
4.0
Rated 4.0 out of 5 stars
1 Review
Select Item Condition
Earn 404 SuperPoints

Quantity
Planning a Big Order?
Bulk pricing available—let us know your needs for a quote.
Get a quote
Shop with Confidence
Enjoy a free 60-day warranty, extendable to 1 year at checkout.
Learn more
Eaton/Cutler-Hammer J3100 3 Pole Circuit Breaker

Eaton / Cutler-Hammer J3100 - 100A 3 Pole Molded Case Circuit Breaker

Re-Certified

$404.44 In stock

Quantity

DescriptionSpecificationsSuperClubWarranties
Description
A drop-in replacement for older commercial setups, the Eaton J3100 is a 100A, 3-pole molded case circuit breaker. It provides essential long-time and instantaneous trip functions for demanding 600VAC applications. This J-Frame breaker mounts into classic Westinghouse panelboards, switchboards, and motor control centers. When upgrading or replacing components, it can be substituted with the newer JD3100 or JDB3100 models. The unit boasts a 35kAIC interrupting capacity at 480VAC.

Specifications

Brand Eaton / Cutler-Hammer
Series J
Part Number J3100-R
Amperage 100A
Voltage 240VAC, 480VAC, 600VAC, 250VDC
Poles 3
Phase 3
AIC Rating 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC
Mounting Style Bolt-On
Terminal Type Lugs
For Use With Westinghouse Panelboards, Switchboards, Motor Control Centers
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Adjustable Magnetic
Wire Gauge 4 AWG - 350 kcmil (Al/Cu)
Max Wire 350 kcmil
Min Wire 4 AWG
Available Options Shunt Trip, Undervoltage Release, Auxiliary Switch, Alarm Switch
Accessories Lugs included
Standards CSA C22.2 No. 5.1, IEC 60947-2, NEMA AB 1, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Reverse Feed, Trip-Free Mechanism

SuperClub

Get rewarded every time you shop! Join SuperClub for free and start earning points on every purchase, unlocking exclusive discounts, special promos, and VIP perks. Already a member? Keep shopping to level up your rewards and enjoy even more benefits, including faster shipping, extended returns, and premium offers.

Learn more about SuperClub

Warranties

We’ve got you covered!

When shopping with SuperBreakers, you’ll have peace of mind knowing that every single item you purchase includes a 60 day warranty, free of charge. Why such confidence? Because only the highest quality electrical parts have a place on our shelves, and we stand by every single one we sell.

If anything goes wrong with your item that is not a result of misuse or normal wear and tear, we’ll gladly replace it at no cost to you.

Click here to read our full warranty details

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.

Click here to 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.

4.0
Rated 4.0 out of 5 stars
Based on 1 review
Total 5 star reviews: 0 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Search
Search Reviews
Rating
Ratings
Write a Review (Opens in a new window)
1 review
  • MC
    MARK C.
    Verified Buyer
    Reviewing
    ITE/Siemens J20M Control Relay
    I recommend this product
    Rated 4 out of 5 stars
    2/4/26
    it control relay but it was just the coil for the relay. do you have a J20A40 CONTACTS?

    it control relay but it was just the coil for the relay. do you have a J20A40 CONTACTS?

    Was this helpful?

Related Products

Recently Viewed