Eaton / Cutler-Hammer E3050 Molded Case Circuit Breaker
- 50A
- 3 Pole
- Bolt-On
Quantity
Eaton / Cutler-Hammer E3050 - 50A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer E3050 - 50A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | E3050 |
| Series | E |
| Amperage | 50A |
| 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 E3050 - 50A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | E |
| Amperage | 50A |
| 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 |
Description
Designed to handle demanding electrical loads, this 50A, 3-pole molded case circuit breaker offers robust protection for 240V commercial systems. It incorporates fixed thermal and magnetic trip elements to prevent equipment damage from overcurrent events. The breaker mounts securely into Cutler-Hammer Type PB panelboards and various motor control centers. When seeking a modern substitute, the EHD3050 serves as the designated replacement. It provides a standard 7kAIC interrupting capacity.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | E3050 |
| Series | E |
| Amperage | 50A |
| 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
5 answersWhat enclosures and panelboards accept the E3050 breaker?
The E3050 is designed for bolt-on installation in legacy Cutler-Hammer Type PB panelboards and compatible motor control centers.
Can the E3050 replace older Westinghouse E-frame breakers?
Yes, this unit is a direct replacement for obsolete Westinghouse E-frame circuit breakers with matching specifications. Eaton acquired the Westinghouse distribution equipment line and maintained the same physical footprint for these legacy frames.
What is the modern Eaton cross-reference for the E3050?
The Eaton EHD3050 serves as the designated modern replacement for this legacy E-frame breaker, offering the same physical footprint and interrupting capacity.
What does the LI trip function indicate on this breaker?
The LI designation stands for Long-Time and Instantaneous trip functions. The fixed thermal element provides a delayed trip for sustained overloads, while the fixed magnetic element trips instantaneously to clear short circuits.
What are the best practices for installing this bolt-on breaker?
Ensure the panelboard is completely de-energized before installation. Verify that the busbar connection points are clean and that the mounting bolts are securely tightened to prevent arcing or overheating under load.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 25 reviews.
- MGMike G.Rated 5 out of 5 stars11/27/23Just what we needed and
Just what we needed and fast shipping
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- 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.
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