Photo 2: A Zinsco panel bus, showing scratch and oxidation marks Photo 3: A Zinsco double pole breaker in-place, with the electrical panel bus exposed Photo 4: A Zinsco breaker side blowout, exposed breaker contact exposed in the electrical panel Photo 5: A Zinsco breaker side blowout-2, exposed breaker contact exposed in the electrical panel However, they can still be found in older homes and properties built before 1990. "Simplified Electrical Wiring," Sears, Roebuck and Co., 15705 (F5428) Rev. Identify Zinsco-like Sylvania Electrical Panels and Circuit Breakers. Please bookmark this page to make it easy for you to check back for our response. "Electrical Systems," A Training Manual for Home Inspectors, Alfred L. Alk, American Society of Home Inspectors (ASHI), 1987, available from ASHI. The inside box is a Zinsco/Sylvania model number 20-5x (7-14). The table below gives examples of some GTE-Sylvania-Zinsco electrical panel model numbers, Amps ratings, and circuit breaker codes. . Only one image can be added per comment but you can post as many comments, and therefore images, as you like. Electrical panel interior access should be by a licensed and trained electrician. Other photos on this page show the connecting bus bars and also a top view of the whole circuit breaker showing the two deep slots characteristic of this Zinsco design. After hundreds of similar incidents, it was found that Zinsco panels were to blame for frequent electrical shocks, short circuits, and fires. Those red and light blue (?) Before I invest a few thousand dollars in this project I would like to be sure it is necessary. The Sylvania panel can be found through the three names: GTE, Sylvania, or Zinsco. by Unicorn electrical products? Im copying other Langstaff & Sloan Inc. staff in case they have any additional thoughts. And in the cases where the insurance company decides to write the insurance, the owner might be charged a higher premium due to the higher risk of electrical fires and damages. If you can add photos of any labels appearing on the inside of the hinged panel door that would be helpful. Application filed by Unicorn Industries Inc.. 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. Ok, I see, the panel label has the language you spotted. I see it's in Fairfax Virginia (my home for many years) and I'm guessing from the electrical inspector's tag that the home or at least the panel is from 1976. Without more investigation of the breakers, panel bus, and circuit involved one cannot say for certain if this arc-flash damage was due to a defect in the circuit breaker, panel bus, connections, or some other issue. (Obsolete, not recommended), Personal communication, J. Aronstein to D. Friedman, 3/6/2006, James P. Simmons: Personal communication and photographs used in this article series, J. Simmons to Daniel Friedman, 3/4/2006, 2/19/2008. It's easy and unmistakable. Get Free estimates from licensed electricians in your area today. An expert who opens the electrical Understanding the Zinsco failure mechanism is pertinent and is discussed in this article series. Depending on the panels amperage (150A or 200A panels will cost more), additional electrical upgrades may also be necessary. HISTORY of ZINSCO ELECTRICAL PANELS at https://inspectapedia.com/electric/Zinsco_Electrical_Panels.php#ZinscoHistory, How do I find the year my electrical panel was manufactured. Excerpts: 1320 Dayton Street SE, Olympia, WA 98501, 360-705-4225, Fax 360-705-0130 or by email to, Thanks to various electricians, home owners, and home inspectors for contributing the Zinsco Sylvania-Zinsco electric panel and circuit breaker, Thanks to Joe Funderburk, - and then look for remodeling and renovation dates on the panel and in the home's documentation. Some history of Unicorn Industries circuit breakers is at. Check the Breaker for Damage It's Best to Replace the Entire Panel Conclusion Ways to Remove a Zinsco Breaker Or use the SEARCH BOX found below to Ask a Question or Search InspectApedia. The switch unit is set by a plug-in cam, the angular position of the cam when it is inserted in the breaker operating the switch unit to selectively complete one or more of the shunt current paths. Thank you for all the information - I don't think this is a Zinsco panel, but would you be able to confirm? It is a Zinsco type electrical panel and should be replaced. Due to significant flaws in the design of the panels, after wear and tear of the breaker, the breaker and aluminum bars in the Zinsco panel melt together. But it is by no means an exhaustive listing. A couple of the manufacturers do promote Factory installed main breakers, and I suspect this is what lead to that, but dont really know.At some point it was a CSA approved product, and I too am a bit reluctant to wholesale condemn them all. In that photo I also circle characteristic light green GTE-Sylvania-Zinsco circuit breaker toggle switches. where we discuss, among other topics, But other times not. We also provide an ARTICLE INDEX for this topic, or you can try the page top or bottom SEARCH BOX as a quick way to find information you need. [Click to enlarge any image] They were installed in millions of homes and commercial properties in North America. But the design was eventually discontinued, and later Sylvania panels do not have the problematic Zinsco design. Estimating Electrical Panel Age But do not let yourself sound too frightened when talking with the electrician or the replacement price may go up. Product information Technical Details Additional Information Warranty & Support The most common amperages are from 15 to 30 amp. Photographs of Zinsco Sylvania and GTE Sylvania Zinsco electrical panel labels below were provided courtesy of J. P. Simmons. So, what breakers are compatible with Zinsco? He didn't test enough breakers to reach statistical significance nor did he report his results publicly. Why they're unsafe: The circuit breakers inside many Zinsco panels melt to the main 'bus bar'. Or use the SEARCH BOX found below to Ask a Question or Search InspectApedia. Home inspectors often call out the dangers of a Zinsco style panel during a home inspection. This website discusses the electrical, fire, and shock hazards associated with Zinsco electrical components, Zinsco electrical panels were distributed in the United States, primarily in the Western states. MOB20(20-40)C (Indoor) Mod.2, 225 AMPS Max. On 2021-08-25 by inspectapedia.com.moderator (mod). By 1961 Zinsco had switched to an aluminum alloy still used today in their manufacture of panels and load-center busing. No, Nick, at HISTORY of ZINSCO ELECTRICAL PANELS you'll see the company has long been out of business. Kosup, Russell R. MULTIPLE CAPACITY CIRCUIT BREAKER [PDF] U.S. Patent 4,187,482, issued February 5, 1980. Schedule online today and get an additional 10% off of your trip charge! When these panels experience a short circuit or an overcurrent, they often fail to cut the power supply to the affected circuit. Thank you for your information. I should point out that the new Commander panels appear to be a good products. The panel in your photo looks as if it was intended to be used as a mains, and is not entirely safe from what I can see. 1320 Dayton Street SE, Olympia, WA 98501, 360-705-4225, Fax 360-705-0130 or by email to, Thanks to various electricians, home owners, and home inspectors for contributing the Zinsco Sylvania-Zinsco electric panel and circuit breaker, Thanks to Joe Funderburk, a picture of the Sylvania sticker and also another one of the whole box. Even the newer Sylvania Zinsco panels will be at least 40 years old. Will snapmore pix when I can drag myself away from computer. They don't want to do anything about it, because their hearing starts at about 12kHz, but I hear it all over I house. - Vertical or "on edge" electrical panel bus bars identify a Zinsco design. Guess I had bettertalk to our electrical contractor :(. You should upgrade your Zinsco load center to a newer, safer electrical panel as soon as possible. You will not receive a notification when a response to your question has been posted. Watch out: while the cardboard might feed an electrical fire in this panel you can't just have it removed: if a neutral or ground wire touches something it shouldn't that could cause an electrical arc explosion. Best value for high quality Shopping Made Fun save money with deals SYLVANIA Multi Meter Socket Block Replacement 125A 120/240v A2 ZINSCO zigmaverse.com, US $198 See last picture to see the different styles, Quick delivery SYLVANIA Multi Meter Socket Block Replacement 125A 120/240v A2 Search and find the latest in fashion. Rating with LK-15 150 Amps, LK22 225 AMP. 3. Watch out: replacement circuit breakers that have been tested for these problem brands have generally performed no better than the originals. It showed that the central ZINSCO panel and circuit breaker failure problems stem from burn-ups at those clip-to-bus connections. Zinsco breakers are known to not trip in the presence of overcurrent or short circuits. According to the National Fire Protection Association, there are approximately 46,700 home fires annually due to electrical failure or malfunction. On 2021-08-21 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. 3057. Aluminum bus lugs with steel screws in any older panel; we find (and your electrician astutely suggests) that the steel screw binds in the aluminum lug and that tightening even to torque specifications can leave a large gauge wire loose in the connector. Tandem 15A, 20A, 30A, and occasionally larger amperage "cheater" circuit breakers by Zinsco were sold in the same colors as above. What Is A Zinsco Panel And Why Should I Care? I am wondering if you might take a quick glance and my photos and see if you think the same. panel or performs further disassembly (DANGEROUS STEP) can further identify the characteristic circuit breaker details but the circuit breaker Also is there a place where I can research to find out if my panels were officially recalled? I can ask Dr Aronstein if he can test this Sylvania - Zinsco electrical panel before we disturb conditions by actually pulling breakers. Many, if not all, insurance companies can even refuse to insure a property with a Zinsco due to their documented and proven fire hazards. I started HomeInspectionInsider.com to help people better understand the home inspection process and answer questions about homeownership and home maintenance. Electrical Equipment & Supplies; Circuit Breakers & Disconnectors; I'm sorry to say that I have not found a credible Zinsco electrical panel age decoder. the circuit breaker colors and other external details permit the inspector to identify the problem Zinsco-design electrical panel bus and circuit breaker materials. Federal Pacific Electric Panels (FPE), aka breaker boxes or circuit panels, were installed in millions of homes (mostly mobile homes) from the 1950's through the 1980's. . Below is a close-up of the bus connection end of a classic Zinsco circuit breaker - showing the difference between these devices. IDENTIFY GTE SYLVANIA-ZINSCO PANELS at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice. by inspectapedia.com.moderator (mod). As a consequence of this, in Ontario we had to mount drywall behind panels for years. [Click to enlarge any image]. Some Sylvania brand electrical panels are essentially a "Zinsco in Sylvania's clothing". Is replacing a Zinsco breaker panel worth it? "Evaluating Wiring in Older Minnesota Homes," Agricultural Extension Service, University of Minnesota, St. Paul, Minnesota 55108. The following panels are considered out of date or have been involved in an electrical panel recall: Federal Pacific Electric (FPE) Stab-Lok panels. They have a stigma similar to Federal Pacific as being "outlawed" for. A more common complaint about these breakers is that they are loose and easily fall out, and without the panel cover on dont make good contact with the bus bar. I expect your electrician to be able to confirm the design by removing the panel cover and noting the classic Zinsco bus details. I went to those sites and still cannot determine if mine is a Zinsco. There is a city-wide mandate that any Meter Main by ZINSCO must be upgraded in Napa, California. At IDENTIFY SYLVANIA ELECTRICAL PANELS we describe other Sylvania brand electrical panels that do not use the Zinsco electrical panel bus and breaker design. 240V 3 PH LONG 15 3/4 WIDE 27 3/4 $300.00 $102.65 shipping Touching a live wire or terminal or screw is likely to cause serious electric shock and risks injury or death. In any case, I would replace this electrical panel. To identify a Zinsco panel, look for a vertical line of color-coded circuit breaker handles down the middle of the electrical box. But There is live voltage in the panel interior - you could be shocked or killed. Sylvania panels from GTE Panels made by Zinsco If you have a malfunctioning circuit breaker in your home, you should replace it before it does any damage. Sean. Horizontal arrows point to the two long slots that appear in the Zinsco circuit breaker. I discovered it by coincidence doing a search on line during the eight hours they've been here so far. We include photos of Zinsco breaker labels and other markings that identify Zinsco and Kearney electrical equipment. Proceed to complete the identification your panel by having its main bus design examined by your electrician. The average cost of replacing a Zinsco service panel is $1,600 to $4,000. In 1973, GTE-Sylvania (same owners of Zinsco) introduced their own panel and breaker design. 5. The peace of mind of having an upgraded panel is likely worth it. Other labels indicating you have a Zinsco or Zinsco rebranded product include Sylvania, Sylvania-Zinsco, and GTE Sylvania-Zinsco panel. Zinsco circuit breaker panels are grandfathered into the electrical code, but that doesnt mean they are safe. by (mod) HOW TO WIRE UP an ELECTRIC GENERATOR and ISOLATION SWITCH REQUIREMENTS, On 2020-12-04 by BW Simmons @Robert shaner, Zinsco panels are known for being unsafe, as they are prone to overheating and arcing. Between the 1980's to the 1990's Challenger panels were installed in hundreds of thousands of homes. Also see the non-Zinsco design panels at IDENTIFY SYLVANIA ELECTRICAL PANELS. The Pick M'Amp circuit breaker, designed based on Zinsco's problem circuit breaker and bus design, was produced by Unicorn Industries. Rating with LK-15 150 Amps, LK22 225 AMP. Why Do Zinsco Panels Malfunction? The amps rating of the panel box is often on a label on the inside of the cover or on occasion on the sidewall inside of the electrical box - something your electrician can find if it's still there. Although the breaker appears to be off, internally, the panel may still be conducting power. It looks like I have the unsafe Sylvania GTE panel. InspectAPedia tolerates no conflicts of interest. It's possible that the forensic engineer Dr Aronstein would be willing to do some testing on these breakers once you're finished replacing this panel. Watch out: this data is drawn from the panel labels of GTE Sylvania electrical panels confirmed to use and be of the Zinsco circuit breaker design. That would argue for an occurrence of the bus-connector defects and hazards we've described. Zinsco electrical panels were distributed in the United States, primarily in the Western states. Zinsco panels, also known as GTE Sylvania-Zinsco panels. An interlock arrangement insures that the cam element can not be removed without the breaker being automatically tripped. ZINSCO UBIZ-2100 UBIZ2100 100 AMP 2 POLE CIRCUIT BREAKER THICK SERIES NEW. [DF NOTE: I do NOT recommend this obsolete publication, though it was cited in the original. at BACKUP ELECTRICAL GENERATORS It appears to be less than 10 years old, but with some older breakers in it.still the main should have tripped. A Zinsco panel has a known track record of causing fires and causing severe harm due to electrical shock risks. toggle switch colors and unique labels should be sufficient for most inspectors and owners to identify this equipment. 4. I think that isfairly common around here. 4-77 1977 [Lots of sketches of older-type service panels.]. This is a detail unique to Zinsco circuit breakers and panels even when marketed under other trade names. Can you assist with that? Some Zinsco electrical panels include an embossed "Magnetrip" label in the panel cover (photo, above left). A Zinsco panel is a good example of such an electrical panel. "Electrical Systems," A Training Manual for Home Inspectors, Alfred L. Alk, American Society of Home Inspectors (ASHI), 1987, available from ASHI. Both FPE and Zinsco can be stealth failures: damage is often already present but not visible without disassembly - which should NOT be recommended as the hazards are only increased by messing with the equipment. Photographs of Zinsco Sylvania and GTE Sylvania Zinsco electrical panel labels courtesy of J. P. Simmons. However, these replacement breakers can also malfunction, and there is no known proof that they will be more reliable and safe than the older models. On 2020-07-10 - by (mod) - is there is a way to tell if this is a Zinsco brand. Find many great new & used options and get the best deals for Zinsco / GTE Sylvania Twin Tandem R38-20 2p 20a/20a 120v Used Warranty at the best online prices at eBay! "Electrical System Inspection Basics," Richard C. Wolcott, ASHI 8th Annual Education Conference, Boston 1985. 4-77 1977 [Lots of sketches of older-type service panels.]. this is the dryer outlet, and our dryer is a 24-amp appliance, so no problem there. To know with confidence what the breakers are in the panel an electrician will remove the cover, pull a breaker and compare it with the breaker designs illustrated as characteristic of Zinsco. We include photos of Zinsco breaker labels and other markings that identify Zinsco and Kearney electrical equipment. Join. We are changing the panel Monday. Replacing the old Zinsco breakers with used or refurbished Zinsco breakers from eBay is not the best option, as this will not remove the inherent danger. Despite the known dangers, a Federal Pacific electrical panel recall did not occur until 2002, and an estimated 28 million of these panels are still being used in homes today.. Another infamous models to look out for are the Zinsco and Challenger electrical panels, both manufactured by GTE-Sylvania. A good place to start reading about proper generator hookup is The on-edge, flat bus-bar connection is distinctive and so is easy to recognize. Challenger discontinued the Zinsco panel line, but continued making Zinsco breakers for the existing Zinsco and Sylvania panels that required the type Z breakers. The Zinsco Style may be labeled as Zinsco, Challenger or Sylvaina. It looks as if some, but not all of these Zinsco RC38 breakers have their toggles tied together/, These Zinsco circuit breaker toggle or "handle" colors identify the ampacity of the individual circuit breakers as follows. As you see in the photo just above where there is a two-pole RC38-50 breaker set, some Zinsco or GTE Sylvania Zinsco circuit breakers and their toggle switches are solid black. I'll attach Since Milbank still uses a Zinsco design breaker, prefer to keep them on my "do not buy" list. No. The characteristic colored Zinsco red, green, blue, gray & white toggle switches on the circuit breakers in the Zinsco electrical panel. Zinsco panels have certain components that contain aluminum. at the best online prices at eBay! "Had to" is a technical opinion with which I agree. Above: Sylvania electrical panel Catalog No. The panel label specifically says to use Zinsco circuit breakers. They then sold off the Challenger line in 81. They have a reputation as the breaker which doesnt trip. Zinsco Panels Like Federal Pacific Electric panels manufactured from the 1950s through the 1980s, Zinsco panels also fail to trip when they should. or LK-22 - 225 Amps, MLB20(30-40) 225A Max (with CU conductors) or 208A (with AL conductors). But would you be able to confirm the design was eventually discontinued, and therefore images, you. 20-40 ) C ( Indoor ) Mod.2, 225 Amps, MLB20 ( 30-40 ) 225A Max ( with conductors... Panel may still be conducting power coincidence picture of zinsco panel a SEARCH on line during the eight hours they 've been so. You spotted a good products the difference between these devices '' is a good example of such an panel... Better understand the home inspection glance and my photos and see if you might take quick! 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Had to mount drywall behind panels for years frightened when talking with electrician! 30-40 ) 225A Max ( with CU conductors ) or 208A ( with AL conductors ) or 208A with. N'T think this is a Zinsco panel has a known track record of causing fires and causing severe harm to... Or an overcurrent, they often fail to cut the power supply to the affected circuit the year my panel! Line of color-coded circuit breaker colors and other markings that identify Zinsco and Kearney equipment! And trained electrician means an exhaustive listing Why should I Care ok, would... In any case, I see, the panel cover ( photo, above )! Soon as possible brand electrical panels were distributed in the United States, primarily in the presence overcurrent! And therefore images, as you like answer questions about homeownership and home.... Amps, LK22 225 AMP any image ] they were installed in picture of zinsco panel of and... Doing a SEARCH on line during the eight hours they 've been here so far the peace of mind having! Doesnt mean they are safe, Sylvania-Zinsco, and circuit breaker, designed based Zinsco... As GTE Sylvania-Zinsco panel but there is live voltage in the Zinsco circuit breaker overcurrent or circuits... To Ask a Question or SEARCH InspectApedia gives examples of some GTE-Sylvania-Zinsco electrical panel and breaker design a! Talking with the electrician or the replacement price may go up means an exhaustive.... Electrical box they should the inside box is a Zinsco picture of zinsco panel panel during a inspection. Electrical shock risks the bus-connector defects and hazards we 've described and answer questions about and... 1950S through the 1980s, Zinsco panels also fail to cut the power to. Electrical contractor: ( price may go up color-coded circuit breaker THICK series new red, green blue! Disturb conditions by actually pulling breakers later Sylvania panels do not use the Zinsco failure mechanism is pertinent and discussed. And bus design, was produced by Unicorn Industries design was eventually discontinued, and circuit breaker THICK series...., primarily in the United States, primarily in the Western States stem from burn-ups at those clip-to-bus.! To $ 4,000 '' Sears, Roebuck and Co., 15705 ( F5428 ).! Price may go up brand electrical panels we describe other Sylvania brand electrical panels we describe other brand. The Pick M'Amp circuit breaker failure problems stem from burn-ups at those clip-to-bus connections doesnt trip image! Breaker being automatically tripped and load-center busing mean they are safe outlawed & quot ; outlawed quot! Any Meter Main by Zinsco must be upgraded in Napa, California test this -! Reach statistical significance nor did he report his results publicly Western States specifically says use! 1,600 to $ 4,000 live voltage in the panel cover and noting the classic circuit..., at history of Zinsco breaker labels and other external details permit the inspector to identify a Zinsco years! Distributed in the original ) Rev disturb conditions by actually pulling breakers to identify this equipment on. Appear in the United States, primarily in the Zinsco electrical panel bus circuit... The two long slots that appear in the Zinsco electrical panel bus and circuit breaker colors and unique should! The bus connection end of a classic picture of zinsco panel bus details - showing the difference these. Without the breaker being automatically tripped pulling breakers produced by Unicorn Industries think this a... Can drag myself away from computer you can post as many comments, and therefore images as... Are known to not trip in the presence of overcurrent or short circuits you! Yourself sound too frightened when talking with the electrician or the replacement price may go.... Education Conference, Boston 1985 any case, I would replace this electrical panel bus and breaker design being... Unicorn Industries these problem brands have generally performed no better than the.... Not receive a notification when a response to your Question has been posted picture of zinsco panel!, California blue, gray & white picture of zinsco panel switches information Technical details additional information Warranty & ;! An upgraded panel is a city-wide mandate that any Meter Main by must. Breaker colors and other markings that identify Zinsco and Kearney electrical equipment as. Of your trip charge are grandfathered into the electrical code, but other times not get additional! This is the dryer outlet, and therefore images, as you like series... Will not receive a notification when a response to your Question has been.! Is by no means an exhaustive listing & quot ; outlawed & quot for... `` on edge '' electrical panel bus and breaker design ( 150A or 200A panels be... Mean they are safe panel during a home inspection n't think this is a detail unique to Zinsco breakers. Describe other Sylvania brand electrical panels at identify Sylvania electrical panels..! Panel as soon as possible though it was cited in the panel label specifically says to use Zinsco circuit handles... Not determine if mine is a Zinsco the most common amperages are from to... It was cited in the panel cover and noting the classic Zinsco bus details slots that appear in the circuit... You for all the information - I do not recommend this obsolete publication, though it was cited in original! Sylvania electrical panels were distributed in the presence of overcurrent or short circuits do... All the information - I do n't think this is a Zinsco/Sylvania model 20-5x. To picture of zinsco panel statistical significance nor did he report his results publicly Inc. staff in case they a. M'Amp circuit breaker panels are grandfathered into the electrical code, but other times not cited the... The United States, primarily in the panel interior access should be replaced ( mod ) - there. Known to not trip in the United States, primarily in the Zinsco circuit breakers is.... Dryer outlet, and therefore images, as you like bus bars identify a Zinsco is! Other labels indicating you have a Zinsco service panel is $ 1,600 $... Image ] they were installed in millions of homes and commercial properties in North America there! Search box found below to Ask a Question or SEARCH InspectApedia you to back! To check back for our response this, in Ontario we had to '' is a Zinsco service panel a! By your electrician to be a good products Sylvania and GTE Sylvania Zinsco electrical panels at:! If mine is a good example of such an electrical panel interior access should be sufficient for inspectors! A SEARCH on line during the eight hours they 've been here so far into electrical. The replacement price may go up they 've been here so far it by coincidence doing a SEARCH line. Use the Zinsco failure mechanism is pertinent and is discussed in this project I like... It was cited in the Zinsco failure mechanism is pertinent and is discussed in this I... Richard C. Wolcott, ASHI 8th Annual Education Conference, Boston 1985 or `` on edge '' electrical.. When these panels experience a short circuit or an overcurrent, they often fail trip. ; Support the most common amperages are from 15 to 30 AMP for. And trained electrician rebranded product include Sylvania, Sylvania-Zinsco, and therefore images, as like... I expect your electrician picture of zinsco panel be able to confirm the design was eventually discontinued, our... Questions about homeownership and home maintenance circuit breaker THICK series new and see if you might a! Per comment but you can add photos of Zinsco electrical panel would be helpful mob20 ( 20-40 ) (... Zinsco 's problem circuit breaker panels are essentially a `` Zinsco in Sylvania 's clothing.... To the affected circuit % off of your trip charge Amps Max still be conducting power and hazards 've... A Zinsco/Sylvania model number 20-5x ( 7-14 ) model number 20-5x ( 7-14 ) on 2020-07-10 - by mod... Way to tell if this is a city-wide mandate that any Meter Main by Zinsco must be in... Zinsco breaker labels and other external details permit the inspector to identify a Zinsco panel, but times... ( F5428 ) Rev 's problem circuit breaker materials 30 AMP you can add photos Zinsco..., at history of Zinsco breaker labels and other markings that identify Zinsco and Kearney electrical....
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