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Eaton / Cutler-Hammer E3030 Molded Case Circuit Breaker
- 30A
- 3 Pole
- Bolt-On
Eaton / Cutler-Hammer
E3030
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
E3030
Quantity
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Eaton / Cutler-Hammer E3030 - 30A 3 Pole Molded Case Circuit Breaker
Re-Certified
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Eaton / Cutler-Hammer E3030 - 30A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | E3030 |
| Series | E |
| Amperage | 30A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 7kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Cutler-Hammer Type PB Panelboards, Motor Control Centers |
| Wire Gauge | 14-1/0 AWG (Al/Cu) |
| 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, Bell Alarm, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | UL 489, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip, Common Trip |
Quantity
Eaton / Cutler-Hammer E3030 - 30A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | E3030-R |
| Series | E |
| Amperage | 30A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 7kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Cutler-Hammer Type PB Panelboards, Motor Control Centers |
| Wire Gauge | 14-1/0 AWG (Al/Cu) |
| 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, Bell Alarm, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | UL 489, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip, Common Trip |
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Description
Engineered for commercial and industrial applications, the Eaton E3030 is a 3-pole, 30A molded case circuit breaker built for 240V systems. It provides essential overcurrent protection for demanding electrical distribution networks. This bolt-on MCCB installs into Cutler-Hammer Type PB panelboards and compatible motor control centers. As an older E-Frame model, it is replaced by the newer EHD3030 for modern upgrades. Featuring a fixed thermal-magnetic trip unit, it delivers a 7kAIC rating.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | E3030-R |
| Series | E |
| Amperage | 30A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 7kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Cutler-Hammer Type PB Panelboards, Motor Control Centers |
| Wire Gauge | 14-1/0 AWG (Al/Cu) |
| 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, Bell Alarm, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | UL 489, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip, Common Trip |
Product FAQs
7 answersWhat panelboards accept the E3030 circuit breaker?
This legacy Westinghouse E-Frame breaker is designed to bolt directly into Cutler-Hammer Type PB panelboards and compatible motor control centers.
What is the modern replacement for the legacy E3030 breaker?
Eaton officially replaced the obsolete E3030 with the EHD3030. The EHD3030 shares the same physical E-Frame footprint and mounts into the same Type PB panelboards.
Is this breaker manufactured by Westinghouse, Cutler-Hammer, or Eaton?
The E-Frame series was originally developed by Westinghouse. Eaton acquired the Westinghouse distribution equipment business in 1994 and continued manufacturing these breakers under the Cutler-Hammer and Eaton brands.
What wire sizes are compatible with the E3030 lugs?
The standard load side lugs accept either copper or aluminum conductors ranging from 14 AWG to 1/0 AWG. Ensure proper torque specifications are followed during installation.
Is the E3030 suitable for 480V applications?
No, the E3030 is strictly rated for a maximum of 240V AC. Installing it on a 480V system violates its UL rating and creates a severe safety hazard.
Can the trip settings on the E3030 be adjusted?
No, this breaker features a fixed thermal-magnetic trip unit. Both the long-time overload and instantaneous short-circuit (LI) trip functions are factory set and non-adjustable.
What is the maximum fault current the E3030 can safely interrupt?
The E3030 has a standard interrupting capacity of 7 kA at 240V AC. You must verify that the available fault current at your specific installation point does not exceed this 7 kA limit.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 25 reviews.
Total 5 star reviews: 24 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Reviews Summary
Generated by AI from 30 most recent customer reviews
Last updated 8/15/25
Customers say this electrical breaker meets their expectations in terms of functionality and performance. Many reviews mention quick delivery times and competitive pricing. While one user reports voltage detection issues, most find these units work effectively. Common feedback includes satisfaction with product condition upon arrival and straightforward installation. Reviews indicate availability of specialty models that are often hard to find through local suppliers.
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Rating
25 reviews
- MGMike G.Rated 5 out of 5 stars11/27/23Just what we needed and
Just what we needed and fast shipping
- TETimothy E.ReviewingSquare D HU364 Safety SwitchI recommend this productRated 5 out of 5 stars5/9/22quick response!!!!
quick response!!!!
- DGDavid G.ReviewingSquare D HU362 Safety SwitchI recommend this productRated 5 out of 5 stars4/13/22Great service and fast shipping
Great service and fast shipping
- WEWarren E.ReviewingSquare D HU361 Safety SwitchI recommend this productRated 5 out of 5 stars3/1/22600v Disconnect
They have GREAT Inventory! Even my Local suppliers did not have them in stock.
- SKSaki K.ReviewingSquare D HU361 Safety SwitchI recommend this productRated 5 out of 5 stars2/20/22Good product
Good product in good price