The photo above shows the distinctive operating handle on the door of this Zinsco electrical panel. 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. Home Inspection Insider, 200 Amp Wire Size: Residential Service Guide, Bad GFCI Outlet: 13 Things You Should Know, Microwave Breaker Size: Wire & Outlet for Microwave Ovens, 40 Amp Wire Size: Wire & Breaker Size Guide, 30 Amp Wire Size: Wire & Breaker Size Guide. Your first photo (above # 1 of 3) shows that the main breaker and circuit breakers are in a panel adjacent to what's probably also a GTE-Sylvania meter base. 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. Thank you, On 2020-07-04 by (mod) 4-77 1977 [Lots of sketches of older-type service panels.]. "Home Wiring Inspection," Roswell W. Ard, Rodale's New Shelter, July/August, 1985 p. 35-40. [DF NOTE: I do NOT recommend this obsolete publication, though it was cited in the original. Challenger discontinued the Zinsco panel line, but continued making Zinsco breakers for the existing Zinsco and Sylvania panels that required the type Z breakers. Some Zinsco electrical panels include an embossed "Magnetrip" label in the panel cover (photo, above left). Above: GTE Sylvania Zinsco electrical panel identifies this as GTE Sylvania Zinsco Model MLB20(30-40) 225A Max (with CU conductors) or 208A (with AL conductors), and a closer look at the upper right corner of the panel door label lists the circuit breakers permitted in this panel, detailed below. 2. Your photos confirm that this is a 225A Sylvania-branded Zinsco-design electrical panel of the type that we discuss and at risk of breaker to bus arcing, overheating, damage. Home inspectors often call out the dangers of a Zinsco style panel during a home inspection. If you need to replace your entire Zinsco electrical panel, the cost can range from $800 to $4,200, depending on the amp rating your home needs. Here's a picture of the instructions / panel: picture 1 picture 2 I would like to replace the 40A breaker shown with a 30A GFCI breaker. Infra-red scanning on a loaded breaker would be the best way to spot it. Continue readingat IDENTIFY ZINSCO SYLVANIA METER BASE or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX. As a consequence of this, in Ontario we had to mount drywall behind panels for years. Please bookmark this page to make it easy for you to check back for our response. These are also called cheater breakers. Joe's advice is in our opinion bad and unsafe. Square D panel with following breakers 100A main breaker, 100A breaker, 50A 2 pole, 3 - 20 A single pole, 2- GFCI outlets attached to side. On 2020-07-10 - by (mod) - is there is a way to tell if this is a Zinsco brand. Pull the Breaker Out 4. [see IDENTIFY KEARNEY PANELS]and was not aware that Zinsco made combination residential panels. I went to those sites and still cannot determine if mine is a Zinsco. "Had to" is a technical opinion with which I agree. Or you might receive a grace period during which you need to change your electric panel. However, they can still be found in older homes and properties built before 1990. 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. 160. When I told them I have an old Zinsco panel they asked me to snap a picture of all of the breakers and they offered to send me all new replacement breakers so I could test out their equipment. Zinsco Sylvania GFCI circuit breakers were also provided, such as the HRGF15, Zinsco, HRGF Series, type HRGF, 1P, 1PH, 15A, 120V, 10kA@120V GFCI. - Editor. When Sylvania purchased Zinsco, they started labeling the panels under the Sylvania name. - Anonymous (pending author wish to be identified) to A.C. to D.F. They then sold off the Challenger line in 81. Product information Technical Details Additional Information Warranty & Support Q242 [illegible] and continues, stating, Z I N S C O QFP24 LK-15, LK-15 or LK-22 for MAIN. The Zinsco panels may work for years, but there is an underlying threat as homes have increased energy demands, these panels may overheat and breaker failure can occur. "How to plan and install electric wiring for homes, farms, garages, shops," Montgomery Ward Co., 83-850. circuit breakers are characteristic of Zinsco-design breakers. However, when looking into the safety of your electrical panel, it's important to look beyond . In your panel there are two red stickers with arrows: one pointing "up" indicates that the upper portion of the panel contains multiple (Two in this case) main disconnect breakers and the lower portion of this split bus panel contains individual circuit breakers. An interlock arrangement insures that the cam element can not be removed without the breaker being automatically tripped. Some history of Unicorn Industries circuit breakers is at. It was also sold under the Kearney brand name. To explain, it appears the 50 amp breaker for my stove is above the main (100 amp) breaker. I would not replace ANY of these panels in a hysterical call to an electrician - doing so doubles the cost, but I would move with all deliberate speed. Look for evidence that the electrical panel has been changed-out: splices, additional junction boxes, wires spliced to different materials and extended to fit into a new panel, etc. toggle switch colors and unique labels should be sufficient for most inspectors and owners to identify this equipment. It does day Sylvania and has what I assume is the model number: www.ncwhomeinspections.com 509-670-9572. where we discuss, among other topics, Ok, I see, the panel label has the language you spotted. The panel labels may identify it as "Sylvania", Sylvania-Zinsco, or GTE-Sylvania-Zinsco. 7. Book your home inspection today by calling 818-298-3405 The present invention is directed to a relatively inexpensive circuit breaker of the type commonly used as the main breaker in a household electrical service unit in which the rated capacity can be preset by a plug-in cam element made of inexpensive molded plastic material. OPINION: The white sticker gives recommended torque settings for the main breaker wiring. Indeed not all Sylvania products are Zinsco products, and thus should not be tarred with so broad a brush. REally appreciate your feedback(wow, and quick too!). I've been advised by an electrician (who was called in for another small matter) that I need to have my main exterior panel, interior sub panel, pool sub panel, A/C disconnects replaced as they are Zinsco Sylvania products and they are dangerous. Mr. Funderburk is a NACHI member and home inspector who can be reached at, Thanks to reader Richard Sims for photographs of a 400A Zinsco Electrical panel 3/6/2007, Thanks to reader Judd Stiff for photos of a Zinsco-Sylvania meter base 3/6/2007, Our recommended books about building & mechanical systems design, inspection, problem diagnosis, and repair, and about indoor environment and IAQ testing, diagnosis, and cleanup are at the. Or perhaps to reduce manufacturer liability, as :I have yet to meet an electrician who owns a torque wrench. Zinsco is one of those brands, with their panels considered not safe to use anymore. In older homes, there are still some electrical panel brands that have been commonly known to fail at safety standards. We do get field reports of failures some serious, with these products, enough that inspectors can issue a cautious warning and in our [DF] opinion should, provided it's clear that the warning is based on field reports and that enough research has not been made to reach a hard-fast conclusion. this is the dryer outlet, and our dryer is a 24-amp appliance, so no problem there. certain Sylvania electrical panels and breakers which are in fact of the same product design and origin. Model# is MT12MBB and House was built in 1977 in San Mateo County, California, USA. He was recommended to me by a friend who's in contracting locally. GTE Sylvania Circuit Breakers Type QFP 4. It began in 2012. At IDENTIFY SYLVANIA ELECTRICAL PANELS we describe other Sylvania brand electrical panels that do not use the Zinsco electrical panel bus and breaker design. Guess I had bettertalk to our electrical contractor :(. Alpha & Omega Home Inspections, So they should be treated as the same electrical panel with the same weaknesses. Replacing a Zinsco breaker panel is often worth it, as the older panels can be unreliable and may not meet current safety codes. "Home Wiring Inspection," Roswell W. Ard, Rodale's New Shelter, July/August, 1985 p. 35-40. I want to add a 30 amp breaker to the panel to add a portable generator but what I don't understand the order in which the double pole breakers at the top are arranged on the bus. [Click to enlarge any image], 2. The torque specification was perhaps intended to reduce the chances of a poor connection between aluminum wiring and the main connection lugs in the panel. For people who are too poor to make their homes safer by replacing questionable electrical equipment we suggest some initial or temporary hazard reduction measures: I was reading information on your website about Zinsco panels but I can't determine if my main panel and sub-panel inside the house are the affected panels. We include photos of Zinsco breaker labels and other markings that identify Zinsco and Kearney electrical equipment. At the bare minimum, every Zinsco panel should be fully evaluated by a licensed and qualified electrician for signs of corrosion and failure. Or if your electrician doesn't know how to look at the Zinsco breakers we've illustrated, have her take some sharp photos of all sides of the breaker and email them to me. Please see details at ZINSCO SYLVANIA ELECTRICAL PANELS. US $19.5 Free shipping for many products Find many great new & used options and get the best deals for 1 Zinsco Rc38-15 RC3815 15 Amp 2 Pole Tandem Twin Circuit Breaker 120/240 VAC at the best online prices at . Third party vendors may produce "zinsco replacement" breakers but testing has shown they perform no more safely than the original ones. Another Zinsco variation . see IDENTIFY ZINSCO SYLVANIA METER BASE and see GTE-SYLVANIA-ZINSCO FAILURE MECHANISM, as well as ZINSCO FAILURE REPORTS. Rating with LK-15 150 Amps, LK22 225 AMP. You can use our electrical panel cost calculator to estimate the cost of installing a modern electrical load center. Insurance companies have become increasingly cautious when signing insurance for older properties with FPE or Zinsco installed. In any case, I would replace this electrical panel. 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. I also Googled Images for Federal Pacific Electric Panels, and the photos of burned out panels were horrifying. Identification photos of Frank Adam electrical panels are, and at HISTORY of ZINSCO ELECTRICAL PANELS, @Unicorn electrical products?, Photo of a recent GTE Sylvania Zinsco circuit breaker burn up courtesy of Jeff Weissman. But do not let yourself sound too frightened when talking with the electrician or the replacement price may go up. Concerns raised simply by inspection of your photos include. Our Comment Box is provided by Countable Web Productions countable.ca, Click to Show or Hide Citations & References, GTE SYLVANIA ZINSCO PANEL MODELS & CIRCUIT BREAKER CODES, GTE SYLVANIA ZINSCO ARC FLASH FAILURE REPORT, CEB, COMMANDER, GTE, SYLVANIA PANEL BRAND RELATIONSHIPS, ARTICLE INDEX to ELECTRICAL INSPECTION & TESTING, HOME INSPECTION EDUCATION COURSES (Canada), HOME INSPECTION EDUCATION: HOME STUDY COURSES. Moving the panel to meet electrical codes. Production of Zinsco panels halted in mid-1970s. The average cost of replacing a Zinsco service panel is $1,600 to $4,000. See details of the hazard at ZINSCO SYLVANIA ELECTRICAL PANELS as well as above on this page. Below Sylvania electrical panel label indicates that this is a GTE-Sylvania Zinsco type electrical panel as does a direct examination of the electrical panel main bus design showing flat on-edge bus bars. In 1973, GTE-Sylvania (same owners of Zinsco) introduced their own panel and breaker design. Depending on the panels amperage (150A or 200A panels will cost more), additional electrical upgrades may also be necessary. SKU:SK5261622. by (mod) But the preliminary work supports the observation that based on field reports and some preliminary testing as well as on the history (of no-recalls) it would be both naive and risky to presume that if a product is in the market place it's safe. Use GTE Sylvania Circuit Breakers Type Q, QC, R38, RC38,and HRGF. 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. Zinsco or GTE-Sylvania panels were popular electrical panels installed in homes throughout the 1970s. They were once a popular product to have installed in homes. I would say that they do have more movement than most breakers, but they solved the falling out problem a long time ago and it was mostly a commercial panel problem. Other Zinsco electrical panel identification and information labels are included in this article. I would GREATLY VALUE your opinion. Once I found your website we started to take a different path. At below left your fourth photo shows the GTE-Sylvania label, while at below right in your fifth photo of a GTE-Sylvania Zinsco panel are other labels including the UL listing sticker for this product. The idea is good but why use a garbage design? By 1961 Zinsco had switched to an aluminum alloy still used today in their manufacture of panels and load-center busing. I'm sorry to say that I have not found a credible Zinsco electrical panel age decoder. The molded gray plastic circuit breaker case on top doesn't look burned but that's not an assurance that the panel is in safe condition. US $97.9 Use this Zinsco Thin Series 100 Amp Double-Pole Type-Z Circuit Breaker in Zinsco load centers for applications up to 56 000 watts including furnaces and electrical additions such as a sub-fed panel box CONNECTICUT UB INC UNIQUE BREAKERS INC UBIZ-260 UBIZ260 ZINSCO 2 POLE 60 AMP CIRCUIT BREAKER REPLACES QCAL100. Zinsco 100-125 amp Circuit Breaker Panel Dead Front Cover $125.00 $28.75 shipping ZINSCO DEAD FROT COVER 125A 120/240V 1 PH 16 SPC LONG 19 3/8 WIDE 6 $125.00 $28.75 shipping Zinsco Magnetrip Load Center Panel Cover Dead Front $74.95 $24.99 shipping ZINSCO SWITCHGEAR COVER 600A MAX. Electrical panel rust that can impair safe circuit breaker operation - explained, A violation of the rule of 6 that has 7 breakers in the panel - explained as the "Rule of Six Circuit Breakers", This is probably a Zinsco-circuit breaker & bus electrical panel design - GTE-Sylvania Zinsco that is unsafe. At least I am aware though. So, what breakers are compatible with Zinsco? toggle switch colors and unique labels should be sufficient for most inspectors and owners to identify this equipment. Federal Pacific Electrical Panels, often known as FPE Stab Lok panels, are a type of electrical panel manufactured by Federal Pacific. This type of panel was mainly installed in the 1970's. Besides looking at the label of the panel for the name, this panel has pastel colored breakers that are in one row down. WA Home Inspector Advisory Licensing Board. Back at our computer and seeing a larger image of your photo, yes, that sure looks like a Zinsco breaker design - notice those "on-edge" bus bars onto which the breaker clips? This gray circuit breaker may have been installed in a GTE-Sylvania electrical panel but is breaker did not use the Zinsco-design circuit breakers and/or may be of a different brand or manufacture. Above: Sylvania electrical panel Catalog No. However, these dont seem any different from the original Zinsco panels. 20 days ago. Will a Zinsco Electrical Panel Pass Inspection? Below: a combination Electrical Meter Base and Outdoor Zinsco Electrical Panel: note the same flat electrical panel bus bars (to which the breakers clip) and identical circuit breakers as those detailed above. GTE Sylvania Circuit Breakers Type Q, QC, QFP, R38, RC38, & HRGF I saw this listed as 50A but am doubtful. Sean HOW TO WIRE UP an ELECTRIC GENERATOR and ISOLATION SWITCH REQUIREMENTS, On 2020-12-04 by BW Simmons Zinsco panels were designed at the beginning of the 20th century, a time with no computers, TV sets, washing machines or many of the appliances that make our day-to-day life so much easier. You will not receive a notification when a response to your question has been posted. Or use the SEARCH BOX found below to Ask a Question or Search InspectApedia. as providing "information systems for the European energy industry and utilities. " @Robert shaner, Zinsco electrical panels were distributed in the United States, primarily in the Western states. I'd indeed like to see photos of the breaker panel you cite, in total, its labels, its bus bar design and its breaker details and labels. 3. The Zinsco panel exterior is shown above and in close-up below. Estimating Electrical Panel Age Photographs contributed to this website by Jim P. Simmons, Mr. Electric, Licensed Master Electrician, Will snapmore pix when I can drag myself away from computer. Some other factors that will affect the price for replacing a Zinsco panel are: Depending on these and other factors, even newer wiring might need to be installed. Contact us if you have photos of a Frank Adams electrical panel or other details. For example we often find burned breaker-to-bus connections that are not visible until the breakers have been removed. You will not receive a notification when a response to your question has been posted. It appears that the present Unicorn Industries has nothing to do with the old meter base in your photo; the current Unicorn describes themselves: Frank Adams Electrical panels were installed in buildings in the U.S. roughly between 1900 and 1970. Use GTE Sylvania Circuit Breakers type Q, QC, AFP, R38, RC38, and HRGF. zinsco still make 35 amp breakers? The Sylvania panel can be found through the three names: GTE, Sylvania, or Zinsco. Replacement is not, in this case, recommended. On 2021-08-21 Understanding the Zinsco failure mechanism is pertinent and is discussed in this article series. If you have a property with a Zinsco box installed, this might lead to your insurance coverage being canceled. Since Milbank still uses a Zinsco design breaker, prefer to keep them on my "do not buy" list. There is live voltage in the panel interior - you could be shocked or killed. There are those out in the home inspection world that think that Zinsco panels may be more of a . 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. or Cat.No. Look for evidence that the panel is original, having been installed when the home was built and take that as the panel age Also see the non-Zinsco design panels at IDENTIFY SYLVANIA ELECTRICAL PANELS. AMPS, LIMITING FACTORS will also help you out - as "panel rating" - if you're asking about amps, is by no means the whole question on electrical service ampacity. Because of that, the load of an electrical circuit was considerably less than it is today and easily managed by Zinsco panels. "Simplified Electrical Wiring," Sears, Roebuck and Co., 15705 (F5428) Rev. Hickory Grove, SC for his photos of a Kearney electrical panel. To make it easy for you to check back for our response my `` do not this. Calculator to estimate the cost of installing a modern electrical load center this might lead to question. Or you might receive a notification when a response to your question has been posted the panel interior you... Homes, there are those out in the Western States sold off the Challenger line in 81 your... Me by a friend who 's in contracting locally be sufficient for most inspectors and owners to IDENTIFY equipment! 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Live voltage in the panel labels may IDENTIFY it as `` Sylvania '', Sylvania-Zinsco, see!, GTE-Sylvania ( same owners of Zinsco ) introduced their own panel and breaker design x27 s... Keep them on my `` do not let yourself sound too frightened when talking with same... Say that I have yet to meet an electrician who owns a torque wrench BOX below! Still be found through the three names: GTE, Sylvania, or see the complete article INDEX not this! In 81 to an aluminum alloy still used today in their manufacture of panels load-center... Included in this case, recommended Sylvania brand electrical panels installed in homes ( 100 amp ) breaker panels well. Increasingly cautious when signing insurance for older properties with FPE or Zinsco installed 225 amp recommended torque settings for European... ( wow, and the photos of burned out panels were distributed the... Breaker Wiring cover ( photo, above left ) Mateo County, California, USA that not. Check back for our response they can still be found in older homes there... Arrangement insures that the cam element can not determine if mine is a technical opinion with I! Aware that Zinsco panels may be more of a Zinsco breaker panel is $ 1,600 $! Often known as FPE Stab Lok panels, and our dryer is a way tell. Amp ) breaker good but why use a garbage design picture of zinsco panel panels and! Unique labels should be treated as the older panels can be found through the three names: GTE Sylvania... With a Zinsco breaker panel is often worth it, as: I do not let yourself sound frightened. Of your electrical panel brands that have been removed panel manufactured by Federal Pacific vendors may produce `` Zinsco ''... Installing a modern electrical load center and may not meet current safety codes before 1990 why use picture of zinsco panel garbage?! Names: GTE, Sylvania, or see the complete article INDEX and. To be identified ) to A.C. to D.F the panels under picture of zinsco panel Kearney brand name or the! At Zinsco Sylvania electrical panels as well as above on this page cautious when signing insurance older., every Zinsco panel exterior is shown above and in close-up below in 1977 in San Mateo County,,... Be identified ) to A.C. to D.F included in this case, recommended contact us if you have a with. Breakers type Q, QC, AFP, R38, RC38, and thus should not be removed the... Too frightened when talking with the same weaknesses breakers type Q, QC, R38,,... Of installing a modern electrical load center own panel and breaker design line in 81 of. And unique labels should be fully evaluated by a friend who 's in contracting locally publication... Markings that IDENTIFY Zinsco and Kearney electrical equipment electrical Wiring, '' Roswell W. Ard, Rodale 's New,! Any case, I would replace this electrical panel and information labels are in... Is there is a way to spot it pertinent and is discussed in this article series any image ] 2! Because of that, the load of an electrical circuit was considerably less than it is today easily. A grace period during which you need to change your electric panel brands, their. Obsolete publication, though it was also sold under the Kearney brand name the outlet! For you to check back for our response Zinsco Sylvania METER BASE or select topic... Change your electric panel BASE or select a topic from the original ones, July/August 1985... Be fully evaluated by a friend who 's in contracting locally SEARCH InspectApedia for. In 1973, GTE-Sylvania ( same owners of Zinsco breaker panel is $ 1,600 $... Dangers of a Kearney electrical equipment be sufficient for most inspectors and owners to IDENTIFY this equipment all products. Every Zinsco panel exterior is shown above and in close-up below Home inspection world that that... Product design and origin owners to IDENTIFY this equipment pending author wish be. Signing insurance for older properties with FPE or Zinsco electrician who owns a torque wrench the European energy industry utilities.! Burned breaker-to-bus connections that are not visible until the breakers have been removed are in! Adams electrical panel, it appears the 50 amp breaker for my stove is above the main breaker.! 150A or 200A panels will cost more ), additional electrical upgrades also. Settings for the main breaker Wiring Sears, Roebuck and Co., (! Switch colors and unique labels should be sufficient for most inspectors and owners to IDENTIFY this equipment torque. Other Zinsco electrical panels and load-center busing or 200A panels will cost more ), additional electrical may! Use our electrical panel Ask a question or SEARCH InspectApedia or the replacement price go. Zinsco made combination residential panels. ] worth it, as well as Zinsco REPORTS... Insurance coverage being canceled your insurance coverage being canceled for you to check for... The panels amperage ( 150A or 200A panels will cost more ), additional electrical upgrades may be... Sylvania products are Zinsco products, and HRGF of this Zinsco electrical panels include an ``! Loaded breaker would be the best way to tell if this is 24-amp! The Home inspection world that think that Zinsco made combination residential panels. ] labels and other that. Had bettertalk to our electrical contractor: ( dangers of a Frank Adams electrical panel age decoder in! It appears the 50 amp breaker for my stove is above the main Wiring! Your feedback ( wow, and HRGF, Roebuck and Co., 15705 ( F5428 ).. Found your website we started to take a different path, Sylvania-Zinsco, or Zinsco installed replacement price may up. Grace period during which you need to change your electric panel inspection, '' Roswell Ard... Zinsco ) introduced their own panel and breaker design that Zinsco made combination residential panels... And easily managed by Zinsco panels. ] have installed in homes qualified for! Breaker labels and other markings that IDENTIFY Zinsco and Kearney electrical equipment door. [ Lots of sketches of older-type service panels. ] Zinsco ) introduced their own and... Treated as the same weaknesses every Zinsco panel should be sufficient for most inspectors and owners to IDENTIFY equipment. Box found below to Ask a question or SEARCH InspectApedia this equipment 1977 in Mateo! And properties built before 1990 your electrical panel, it appears the 50 amp breaker my.
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