Eaton / Cutler-Hammer HFD1045L Molded Case Circuit Breaker
- 45A
- 1 Pole
- Unit Mount
Quantity
Eaton / Cutler-Hammer HFD1045L - 45A 1 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built for standalone applications, the Eaton HFD1045L unit mount circuit breaker delivers 45A of protection. It utilizes a fixed thermal-magnetic trip unit to provide dependable long-time and instantaneous (LI) coverage. Unlike standard bolt-on models, this MCCB features both line and load lugs for cable-in/cable-out installation in individual enclosures. It is replaced by the Power Defense PDG21M0045TFFJ.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HFD1045L |
| Series | HFD |
| Amperage | 45A |
| Poles | 1 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 277VAC, 125VDC, 347VAC |
| Phase | 1 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 277VAC, 10kA @ 125VDC, 35kA @ 347VAC |
| Frame Type | F |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Enclosures |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, DIN Rail Adapter |
|---|---|
| Accessories | Line and Load Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | ABS, CE, CSA, HACR, HID, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, High Interrupting Capacity, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
6 answersWhat does the "L" suffix in the HFD1045L catalog number indicate?
The "L" suffix indicates that the circuit breaker is supplied with both line and load terminals (lugs) installed from the factory, making it suitable for cable-in, cable-out installations.
Which panelboards are compatible with the HFD1045L circuit breaker?
This breaker is designed for use in Eaton Series C panelboards and individual enclosures that accept F-frame unit-mount breakers.
Can the HFD1045L be used in DC electrical systems?
Yes, this breaker is rated for use in DC applications up to 125VDC, providing a DC interrupting capacity of 10kAIC.
Can the Eaton HFD1045L replace older Westinghouse breakers?
Yes, Eaton acquired the Westinghouse distribution equipment division. The Eaton Series C HFD1045L is a direct replacement for the legacy Westinghouse HFD1045L.
Does the HFD1045L provide ground fault protection?
No, this breaker features a standard thermal-magnetic trip unit for long-time and instantaneous (LI) protection. It does not include ground fault or equipment protection capabilities.
Is the HFD1045L interchangeable with other Eaton F-frame breakers?
The HFD1045L shares the same physical dimensions as other Series C F-frame breakers, such as the FD and FDC. However, it has a specific interrupting rating (100kAIC at 240VAC) and must only be used where this rating meets or exceeds the available fault current of the system.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
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.
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
Review summary
Customers rate this product 5.0 out of 5 based on 21 reviews.
- CHcarl h.Verified BuyerReviewingEaton / Cutler-Hammer HFD3200 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/20/26Breaker
Breaker shipped out and we received it super quick.
- DLDeanna L.Verified BuyerReviewingEaton / Cutler-Hammer HFD3150 - 150A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/19/26Eaton / Cutler-Hammer HFD3150 - 150A 3 Pole Molded Case Circuit Breaker
We needed more breakers ASAP and once again, Michael David came thru like he always does. We are a 24/7/ emergency electrical restoration companyso most of our orders are always needed in a rush and SuperBreakers is always my go to!.
- RFRon F.Verified BuyerReviewingEaton / Cutler-Hammer HFD3045 - 45A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/9/26HFD3045
Perfect breaker & great price/delivery. It's very easy to schedule around SB as their projected delivery times are accurate.
- CPChristopher P.Verified BuyerReviewingEaton / Cutler-Hammer HFD3020L - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/13/26Fast and Cost effective
Superbreakers Is always my first palce to look for harder to source breakers for a good price, and fast turnaround.
- DSDavid S. B. D.Verified BuyerReviewingEaton / Cutler-Hammer HFD3060 - 60A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/6/26Breaker
Great response time and product