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Eaton / Cutler-Hammer EHD2040 Molded Case Circuit Breaker
- 40A
- 2 Pole
- Bolt-On
Eaton / Cutler-Hammer
EHD2040
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
EHD2040
Quantity
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Eaton / Cutler-Hammer EHD2040 - 40A 2 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer EHD2040 - 40A 2 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | EHD2040 |
| Series | EHD |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC, 10kA @ 250VDC |
| Frame Type | EHD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 14-1/0 AWG |
| 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 |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, Reverse Feed |
Quantity
Eaton / Cutler-Hammer EHD2040 - 40A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | EHD2040-R |
| Series | EHD |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC, 10kA @ 250VDC |
| Frame Type | EHD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 14-1/0 AWG |
| 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 |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, Reverse Feed |
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Description
Engineered for commercial and industrial power distribution, this 40A breaker fits seamlessly into Eaton Series C panelboards and motor control centers. The bolt-on design ensures a secure connection for critical loads. Featuring fixed thermal and magnetic trip units, it delivers 14kAIC interrupting capacity at 480VAC. This F-frame component is HACR and HID rated, making it suitable for HVAC and lighting circuits.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | EHD2040 |
| Series | EHD |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC, 10kA @ 250VDC |
| Frame Type | EHD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 14-1/0 AWG |
| 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 |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, Reverse Feed |
Product FAQs
7 answersWhat types of panels are compatible with the EHD2040 circuit breaker?
This bolt-on F-frame breaker is designed for use in Eaton Series C panelboards, switchboards, and motor control centers. It is commonly installed in Eaton Pow-R-Line C commercial and industrial panels.
Can the Eaton EHD2040 replace older Westinghouse circuit breakers?
Yes, the EHD2040 is fully compatible with legacy Westinghouse F-frame systems and serves as a direct replacement for older Westinghouse EHD2040 breakers.
Is the EHD2040 suitable for direct current (DC) applications?
Yes, this thermal-magnetic breaker is rated for up to 250VDC with an interrupting capacity of 10kAIC, making it suitable for specific DC power distribution systems.
What wire sizes and materials are accepted by the terminals on the EHD2040?
The standard load-side lugs accept both copper (Cu) and aluminum (Al) conductors ranging from 14 AWG to 1/0 AWG.
Is this breaker HACR rated for HVAC equipment?
Yes, Eaton F-frame circuit breakers, including the EHD2040, are HACR rated for use with heating, air conditioning, and refrigeration equipment.
How is the EHD2040 connected within a panelboard?
This F-frame breaker features a bolt-on connection for the line side, which mounts directly to the panelboard bus, and includes mechanical lugs on the load side for branch circuit wiring.
Can the trip settings on the EHD2040 be adjusted in the field?
No, this breaker features a non-interchangeable thermal-magnetic trip unit with fixed long-time and fixed instantaneous (LI) settings. It cannot be adjusted in the field.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 13 reviews.
Total 5 star reviews: 13 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
13 reviews
- BCBradley C.Verified BuyerReviewingEaton / Cutler-Hammer EHD3015 - 15A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/27/26Order ease
Quick checkout , good price on reconditioned and very timely delivery.
- RYRichard Y.Verified BuyerReviewingEaton / Cutler-Hammer EHD3100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/15/26Breaker replacement
Quick and responsive delivery
- JMJames M.Verified BuyerReviewingEaton / Cutler-Hammer EHD3100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars5/22/26perfect condition
Part arrived on time and works perfectly.
- JAJoseph A.Verified BuyerReviewingEaton / Cutler-Hammer EHD3090 - 90A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars3/17/26On time and exactly what I needed
Breaker came as expected and quick. Super happy
- SMSteve M.Verified BuyerReviewingEaton / Cutler-Hammer EHD3100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars12/10/25Why go anywhere else
I needed a very specific solution to an overcurrent protection requirement and the sales rep got me exactly what I needed at a great price.