Built for commercial environments, the Eaton QC3035H is a three-pole, 35A miniature circuit breaker. It delivers reliable thermal-magnetic protection for electrical systems up to 240VAC. This unit installs into control panels using a cable-in/cable-out panel mount configuration. It replaces the legacy QCL3035H and adapts to DIN rail setups when paired with the proper accessory. Equipped with fixed trip settings, this HACR-rated breaker ensures consistent 10kAIC performance.
Control Panels, Enclosures, DIN Rail (with adapter)
Wire Gauge
14-4 AWG
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 Thermal, Fixed Magnetic
Standards and features
Available Options
Padlock Attachment, DIN Rail Adapter
Accessories
Line and Load Lugs Included
Standards
UL 489, CSA C22.2 No. 5
Approval
CSA, UL
Temp Rating
40C
Construction Features
HACR Rated, Non-Interchangeable Trip
Product FAQs
8 answers
Can the Eaton QC3035H be mounted on a standard DIN rail?
Yes. While the QC3035H is natively a panel mount, cable-in/cable-out breaker, it can be adapted for 35mm DIN rail installation using the Eaton QCDINADAPT accessory. Because this is a 3 pole breaker, you will need three adapters to properly secure it.
What is the difference between Eaton QC and QCD series breakers?
The QC series, including the QC3035H, is designed for standard panel mounting with cable-in/cable-out connections. The QCD series comes factory-equipped for DIN rail mounting. You can convert a QC breaker to function like a QCD breaker by adding the proper DIN rail adapters.
Does this breaker require a specific panelboard bus for installation?
No. Unlike plug-on or bolt-on breakers that require a specific busbar chassis, the QC3035H is a standalone cable-in/cable-out breaker. It mounts directly to a panel backplate or enclosure, and wires are lugged directly to both the line and load sides.
What type of wire connections does the QC3035H use?
This breaker features box lug terminals designed for a feed-thru, cable-in/cable-out wiring configuration. The lugs accept wire sizes from 14 AWG to 4 AWG.
Is the QC3035H suitable for direct current (DC) applications?
Yes. In addition to its standard AC ratings, this breaker is rated for 3.8kAIC at 62.5VDC, allowing it to be used in specific low-voltage DC control circuits.
What does the LI trip function code mean on this breaker?
The LI code indicates that the thermal-magnetic trip unit provides both Long-Time (thermal) protection against gradual overloads and Instantaneous (magnetic) protection against short circuits. Both settings are fixed on this model and cannot be adjusted in the field.
Can the QC3035H replace legacy Cutler-Hammer breakers?
Yes. Eaton acquired Cutler-Hammer, and the QC3035H directly replaces older Cutler-Hammer breakers with the same catalog number. It also serves as a direct replacement for the legacy QCL3035H model.
Can I use the QC3035H in a standard residential load center?
No. The Quicklag QC series is an industrial, cable-in/cable-out miniature circuit breaker designed for control panels and enclosures. It does not plug or bolt onto the busbars of standard residential load centers like Eaton BR or CH series panels.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
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.
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
Review summary
Customers rate this product 5.0 out of 5 based on 15 reviews.
My experience was great. I had the item quickly; and it was more reasonably priced than other places I checked. Not having to pay freight was an absolute bonus.