Zinsco / Sylvania SEH1C020 Molded Case Circuit Breaker
- 20A
- 1 Pole
- Bolt-On
Quantity
Zinsco / Sylvania SEH1C020 - 20A 1 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Built for commercial and industrial applications, the Zinsco SEH1C020 is a 20A, 1-pole molded case circuit breaker. It delivers reliable long-time and instantaneous protection for legacy systems. This bolt-on breaker mounts into Eaton F-Frame, Sylvania, Challenger, and Westinghouse panelboards without requiring adapters. It is an exact cross-reference replacement for the EHD1020. Rated 14kAIC at 277VAC, this HACR and SWD-rated breaker utilizes fixed thermal-magnetic trip technology.Specifications
| Brand | Zinsco / Sylvania |
|---|---|
| Part Number | SEH1C020-R |
| Series | SEH |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 277VAC |
| Phase | 1 |
| AIC Rating | 14kA @ 120VAC, 14kA @ 277VAC |
| 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 | SWD Rated |
Product FAQs
6 answersWhich panelboards accept the SEH1C020 circuit breaker?
This breaker is compatible with legacy Sylvania, Challenger, and Westinghouse panelboards. It also fits modern Eaton F-Frame systems without the need for mounting adapters.
What is the Eaton equivalent for the Sylvania SEH1C020?
The SEH1C020 serves as an exact cross-reference replacement for the Eaton EHD1020. Both are 20A, 1-pole, 277V breakers that fit the same F-Frame panelboards.
Is the SEH1C020 rated for switching lighting circuits?
Yes, this breaker is SWD (Switching Duty) rated, which means it is approved for regularly switching 120V or 277V fluorescent lighting loads.
Can the SEH1C020 be used for HVAC equipment?
Yes, it is HACR rated, making it suitable for protecting heating, air conditioning, and refrigeration circuits that require HACR-approved breakers.
How does the SEH1C020 connect to the panelboard?
It features a bolt-on connection that fastens directly to the panelboard busbar. Always ensure the panel is completely de-energized before bolting the breaker into place.
What safety precautions are required when installing the SEH1C020?
Installation should only be performed by a licensed electrician. The main power to the panelboard must be turned off and verified with a voltage tester before installing this bolt-on breaker to prevent arc flash or electrical shock.
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