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Zinsco Sylvania GTE identifying Label (C) J Simmons D FriedmanHow to Identify Zinsco & GTE Sylvania-Zinsco
Electrical Panels & Circuit Breakers

  • IDENTIFY ZINSCO ELECTRICAL PANELS - CONTENTS: How to Identify Zinsco & Zinsco-Sylvania & GTE-Sylvania-Zinsco Electrical Panels and Circuit Breakers. How to Identify Zinsco-like Sylvania Electrical Panels and Circuit Breakers. Magnetrip circuit breakers - photogarphs, identification. Photos of labels and markings that identify Zinsco and Kearney electrical equipment
  • POST a QUESTION or READ FAQs about the identification of Zinsco, Sylvaniz-Zinsco, and Kearney Electrical Panels - Zinsco-look alike Electrical Panels and Circuit Breakers
  • REFERENCES
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Zinsco circuit breaker & electrical panel identification guide:

Here we provide text, labels, and equipment photographs used to help identify Zinsco and GTE-Sylvania-Zinsco electrical panels and circuit breakers, and we include photographs of a Zinsco look alike marketed by Kearney.



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How to Identify Zinsco & Zinsco-Sylvania & GTE-Sylvania-Zinsco & Kearney Electrical Panels and Circuit Breakers

This website discusses the electrical, fire, and shock hazards associated with Zinsco electrical components, circuit breakers, electrical panels, including certain Sylvania electrical panels and breakers which are in fact of the same product design and origin. Zinsco-type QSF electrical panel circuit breakers may also appear in Frank Adam Electric Panelboards.

Zinsco Magnetrip panel lable (C) D Friedman

Just below, the photo of a recent GTE Sylvania Zinsco circuit breaker burnup is shown here courtesy of Jeff Weissman and observed, he reports, in a GTE-Sylvania electrical panel.

GTE Sylvania Zinsco breaker (C) J Weissman D Friedman

This gray circuit breaker may have been installed in a GTE-Sylvania electrical panel but is one did not use the Zinsco-design circuit breakers and/or may be of a different brand or manufacture.

Below is an enlargement of the the bus-connection section of a classic Zinsco circuit breaker - showing the difference between these devices.

Zinsco circuit breaker close-up showing bus connection (C) Daniel Friedman

Zinsco electrical panels were distributed in the United States, primarily in the Western states. Some Zinsco electrical panels include an embossed "Magnetrip" label in the panel cover (photo, above left). Other Zinsco electrical panel identification and information labels are included in this article.

[Click to enlarge any image]

IDENTIFY Zinsco HD - 4032 400 Amp, 2 pole, 240V AC Electrical Panel

400A Zinsco in a Georgia kitchen (C) D Friedman, R Sims.

Above and below, courtesy of Richard Sims, we include photographs of a 400A 240V Zinsco Electrical Panel that was property of the Georgia (USA) Power Company, including identifying Zinsco labeling. The Zinsco panel exterior (above left).

400A Zinsco in a Georgia kitchen (C) D Friedman, R Sims.

The photo above shows the distinctive operating handle on the door of this Zinsco electrical panel.

Zinsco 400A panel in Georgia (C) D Friedman R Sims

Here (above and below) we show external and internal identification labels for this 400-Amp Zinsco electrical panel. The electrical panel is also tagged with the electrician's card, Jim Wise, owner, Wise Electric.

Zinsco 400A panel in Georgia (C) D Friedman R Sims

Below we show the interior of this 400Amp Zinsco electrical panel.

Zinsco 400A panel interior (C) Daniel Friedman R Sims

Contact Us with field reports and photos. We are pleased to credit and link-to contributors.

Zinsco 400A panel interior (C) Daniel Friedman R Sims

Other Sylvania Electrical Panels & Circuit Breakers

Sylvania electric circuit breaker (C) InspectApedia Matt Fey Sylvania Electric main panel label SMB20 series (C) InspectApedia Matt Fey

Above: a Sylvania Electric panel circuit breaker with a stab-clip buss connection that is different from the Sylvania-Zinsco circuit breaker designs discussed above on this page. This Sylvania electrical panel, not a Zinsco design, was found in a home in Arizona.

[Click to enlarge any image]

Also you find the Sylvania electrical panel label showing the Sylvania Electric catalog numbers SMB20 (20-40)S Mod. 1 and SMB20(20-40)F Mod 1 rainproof type 3R electrical panel enclosure. This is a 120/240 VAC rainproof type 3R panel enclosure.

Sylvania electrical panel, outdoors, Arizona (C) InspectApedia

Photographs provided courtesy of a professinal home inspector - Anonymous.

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Questions & answers about the identification of Zinsco, Sylvania-Zinsco, and Kearney Electrical Panels - Zinsco-look alike Electrical Panels and Circuit Breakers.

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