Eaton / Cutler-Hammer EP3200 Molded Case Circuit Breaker
- 200A
- 3 Pole
- Plug-On
Quantity
Eaton / Cutler-Hammer EP3200 - 200A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Part of Eaton's replacement lineup, the EP3200 is a 200A, 3-pole main breaker. It is constructed to handle demanding residential and commercial loads while delivering precise thermal-magnetic trip responses. Featuring a convenient plug-on mounting style, this breaker installs easily into Siemens and Murray EQ III load centers. It is frequently used to replace the QPJ3200. With a 10kAIC rating at 240VAC, it provides standard fault protection and features a common trip mechanism.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | EP3200 |
| Series | EP |
| Amperage | 200A |
| Poles | 3 |
| Mounting Style | Plug-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | EP |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens / Murray EQ III Load Centers |
| Wire Gauge | 1 AWG - 300 kcmil (Cu/Al) |
| Max Wire | 300 kcmil |
| Min Wire | 1 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, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip |
Product FAQs
7 answersWhich load centers are compatible with the Eaton EP3200?
This 3-pole main breaker is specifically designed for use in Siemens and Murray EQ III load centers. It serves as a direct replacement for the original main breaker in these specific three-phase panels.
What are the wire size requirements for the EP3200 terminals?
The terminal lugs accept both copper and aluminum conductors ranging from 1 AWG to 300 kcmil. Always apply an approved oxide inhibitor when terminating aluminum wiring and torque the lugs to the panel specifications.
How does the thermal-magnetic trip unit operate on this breaker?
The EP3200 features fixed thermal and fixed magnetic trip elements. The thermal component provides long-time delayed tripping for sustained overloads, while the magnetic component provides instantaneous tripping to clear severe short circuits.
Does this breaker require bolt-on hardware for installation?
No, the EP3200 utilizes a plug-in connection style. It is designed to push directly onto the bus bars of compatible EQ III load centers, simplifying the installation process compared to bolt-on main breakers.
Is it safe to use an Eaton-branded breaker in a Siemens or Murray panel?
Yes, Eaton manufactures the EP3200 specifically as a replacement main breaker for Siemens and Murray EQ III load centers. It is engineered to match the exact mechanical and electrical specifications required for safe operation in these enclosures.
Can the EP3200 replace older Murray EP frame main breakers?
Yes, this Eaton EP3200 is a direct replacement for legacy Murray and Siemens 200A, 3-pole EP frame main breakers. It restores functionality to existing EQ III load centers without requiring a complete panel upgrade.
Is the 10kAIC interrupting rating sufficient for my application?
A 10kAIC rating is standard for many light commercial main breakers. However, you must verify that the available fault current at your panel location does not exceed 10,000 amps at 240VAC to ensure safe and code-compliant operation.
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