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Manufacturer Resources
Spec Sheet
Product Specs
- Amperage Rating:
- 45A
- Circuit Breaker Frame Type:
- Complete breaker
- Circuit Breaker Type:
- EHD
- Frame Size:
- F-frame
- Frequency Rating:
- 50/60 Hz
- Interrupt Rating:
- 18 kAIC at 240 Vac, 14 kAIC at 480 Vac
- Number Of Poles:
- Three-pole
- Series:
- Series C
- Terminals:
- Line and load
- Trip Type:
- Fixed thermal, fixed magnetic
- Department:
- Electrical
- Product Length:
- 3.38 IN
- Product Height:
- 6 IN
- Product Weight:
- 4 LB
- Product Width:
- 4.13 IN
B-LINE EHD3045L – Frequently Asked Questions
1) What is the interrupting rating of the Eaton EHD3045L breaker at 240V and 480V?
The EHD3045L is rated 18 kAIC at 240 Vac and 14 kAIC at 480 Vac. If your available fault current at the panel exceeds those figures at the system voltage you are feeding, this EHD frame is not the right breaker for that location and you need a higher AIC device or series-rated combination.
2) Is the EHD3045L a three-phase breaker, and what amperage does it carry?
Three-pole, 45 amp. That makes it a three-phase device for a 3-wire or 3-wire-plus-ground load such as a motor feeder, rooftop unit, or panel feeder. For single-phase work you need the two-pole EHD version at the same amperage, not this one.
3) Is the trip unit on the Eaton EHD3045L adjustable?
No. The EHD3045L uses a fixed thermal, fixed magnetic trip unit, so there is no instantaneous or long-time dial to set in the field. If your coordination study or a high-inrush motor requires an adjustable magnetic pickup, you need an electronic-trip or adjustable-magnetic frame instead.
4) Does the EHD3045L come as a complete breaker or do I have to order a trip unit and terminals separately?
It ships as a complete breaker with line and load terminals included, so there is no separate trip unit or terminal kit to order. Mounting hardware, lugs of a different wire range, or accessories such as auxiliary switches, shunt trips, and handle mechanisms are separate items.
5) Can I use the EHD3045L to replace an existing Eaton F-frame breaker in my panel?
It is an Eaton Series C EHD-type, F-frame, three-pole 45A breaker. If the breaker you are pulling out is the same EHD type and F-frame with three poles, this drops into the same mounting. Where it will not substitute is if the existing unit is a different frame (J, K, or a higher AIC type like FD or HFD) or if your fault current calculation was based on that higher rating, since this one is 18 kAIC at 240 Vac and 14 kAIC at 480 Vac.
6) What size enclosure or panel space does the EHD3045L need?
The breaker measures 6 in by 4.13 in by 3.38 in and weighs 4 lb. It is an F-frame device, so any Eaton panelboard interior, switchboard, or enclosure prepped for an F-frame three-pole breaker will take it. Check clear depth behind the deadfront against the 3.38 in dimension in shallow enclosures.
7) What is the exact part number to order this Eaton 45A three-pole breaker for a facility standardization list?
Order it as EHD3045L, an Eaton Series C molded case circuit breaker. The EHD3 prefix identifies the three-pole EHD type and 045 the 45 amp rating, so the sibling ratings in the same F-frame family follow the same pattern if you are standardizing a multi-amperage spares list.
8) Will the EHD3045L work on a 50 Hz system?
Yes. It is rated 50/60 Hz, so it is usable on both North American 60 Hz and 50 Hz systems, which matters for imported equipment packages and export-bound skids.
How fast can I get the B-LINE EHD3045L delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the B-LINE EHD3045L come with a warranty?
Absolutely. The B-LINE EHD3045L is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the B-LINE EHD3045L?
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