Zinsco / Sylvania SEH3C030 Molded Case Circuit Breaker
- 30A
- 3 Pole
- Bolt-On
Quantity
Zinsco / Sylvania SEH3C030 - 30A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Part of the discontinued SEH series, this 30A, 3-pole molded case circuit breaker is designed to support legacy commercial facilities. It provides a secure bolt-on connection for Sylvania, Challenger, and Westinghouse panelboards, eliminating the need for costly system overhauls. Featuring a 14kAIC rating at 480VAC, it delivers robust thermal-magnetic protection for demanding environments. Facility managers can also use the Eaton EHD3030 as a modern substitute for this F-Frame breaker.Specifications
| Brand | Zinsco / Sylvania |
|---|---|
| Part Number | SEH3C030-R |
| Series | SEH |
| Amperage | 30A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC |
| Phase | 3 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC |
| Frame Type | SEH |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton F-Frame Panelboards, Sylvania Panelboards, Challenger Panelboards, Westinghouse Panelboards |
| Wire Gauge | 14 AWG - 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 |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | UL 489, NEMA AB 1 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Product FAQs
6 answersWhich panelboards accept the SEH3C030 circuit breaker?
This breaker is designed for installation in legacy Sylvania, Challenger, and Westinghouse commercial panelboards. It is also compatible with Eaton F-Frame panelboards.
Are there alternate part numbers for this breaker?
Yes, this model is frequently listed under alternate catalog numbers such as SEH3C030-R and SEH-3-C-030.
What is a modern equivalent for the discontinued SEH3C030?
Because the original Zinsco and Sylvania SEH series is obsolete, the Eaton EHD3030 is commonly used as a modern F-Frame substitute for commercial applications.
What wire sizes and materials are supported by the terminal lugs?
The lugs are rated for both aluminum and copper conductors, accepting wire gauges from 14 AWG up to 1/0 AWG.
How is the SEH3C030 secured inside the panelboard?
It utilizes a bolt-on connection to mount directly to the panelboard bus, ensuring a secure and reliable contact for commercial environments.
How does the trip unit operate on this breaker?
It utilizes a thermal-magnetic trip unit with fixed thermal and fixed magnetic settings. This provides standard long-time and instantaneous (LI) protection for the circuit.
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