picture of zinsco panel
Replacing the panel can help improve the electrical systems overall performance and ensure it functions correctly. The Consumer Products Safety Commission (CSPC) has not issued a recall on many faulty brands due to budget issues and the significant investment required to implement such recalls, and their claim of a lack of supporting evidence. Zinsco is considered unsafe and a serious fire hazard without being officially recognized by the Consumer Products Safety Commission (CPSC). 4-77 1977 [Lots of sketches of older-type service panels.]. I started HomeInspectionInsider.com to help people better understand the home inspection process and answer questions about homeownership and home maintenance. Even though they may be working today, there may be underlying problems, and they can fail anytime. 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. The younger Zinsmeyer took over the company from his father in 1943 and renamed it Zinsco. Cost to Replace a Zinsco-Sylvania Electrical Panel? Estimating Electrical Panel Age We bought the house and I went to add a 220v breaker for my table saw and was looking up compatible breakers and saw all the warnings about Zinsco when I entered "GTE/Sylvania breakers" into google. According to experts, zinsco panels malfunction for two reasons: Design Flaws Electricians have observed that there are indeed design flaws in the Zinsco circuit breaker panels. The unsafe electrical panels sold by Zinsco were prevalent between the 1960s and 1970s. It is best to avoid buying used Zinsco breakers. Once I found your website we started to take a different path. 2, Type 1 Enclosure, 125A Max.. GTE Sylvania Circuit Breakers Type Q, QC, R38, RC38 & HRGF. Challenger also used FPE and Zinsco Circuit Breakers in many Residential Panels and these are the ones that have had trouble according to many experts. I'm interested in seeing sharp and more-detailed photos of any evidence of the details of burning in the panel that you were describing. Pull the Breaker Out 4. Zinsco breakers are known to not trip in the presence of overcurrent or short circuits. The details to which we point are unique to Zinsco. by (mod) 2, 225AMPS Max. 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. To identify a Zinsco panel, look for a vertical line of color-coded circuit breaker handles down the middle of the electrical box. For example we often find burned breaker-to-bus connections that are not visible until the breakers have been removed. Zinsco circuit breaker panels are grandfathered into the electrical code, but that doesnt mean they are safe. We include photos of Zinsco breaker labels and other markings that identify Zinsco and Kearney electrical equipment. As a result, this made their breakers extremely popular.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[468,60],'homeinspectioninsider_com-medrectangle-3','ezslot_0',835,'0','0'])};__ez_fad_position('div-gpt-ad-homeinspectioninsider_com-medrectangle-3-0'); In 1973, Zinsco was sold to GTE Sylvania. 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. . Guess I had bettertalk to our electrical contractor :(. Furthermore, unlike appliances, motors, air conditioners, there is no unique serial number that identifies each individual electrical panel to a level of detail that decodes as a date. Sean 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. Watch out: removing and replacing circuit breakers or "exercising" them by turning them on and off can in some cases actually increase the risk of a future failure because of scoring of a plated panel bus bar or because some breaker brands such as FPE show an increased failure to trip after being switched on and off. Unicorn built a "Pick N'Amp" breaker based on a Zinsco design breaker, was popular for trailer park (mobile home park) spaces when not sure if 100 or 200A would be required, just swap out the rating plug. Only one image can be added per comment but you can post as many comments, and therefore images, as you like. Production of Zinsco panels halted in mid-1970s. 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. An electrician needs to look with care at this panel for any immediate safety hazards, pending its replacement. Almost immediately, Zinsco began development of new panel and circuit breaker designs, with patent applications dating back to 1946. 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. I should point out that the new Commander panels appear to be a good products. Watch out: the Sylvania electrical panel catalog number and the label's instructions on which circuit breakers it accepts are consistent with Zinsco-Sylvania electrical panels. They have a stigma similar to Federal Pacific as being "outlawed" for. Thank you so much for your help. Below is a Zinsco HQGF20 GFCI circuit breaker with a black toggle switch. Is this 100 amp breaker from 1965 a zinsco breaker? Zinsco R38 This is a tandem 20 amp Circuit Breaker. CONTACT Us with field reports and photos. 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. 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. The full size is type Q and the two ploes are type QC. . Third party vendors may produce "zinsco replacement" breakers but testing has shown they perform no more safely than the original ones. Continue readingat IDENTIFY GTE SYLVANIA-ZINSCO PANELS or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX. Hello, [Click to enlarge any image] We have no relationship with advertisers, products, or services discussed at this website. I also Googled Images for Federal Pacific Electric Panels, and the photos of burned out panels were horrifying. Watch out: from the panel label and external appearance of the circuit breaker toggle switches, it looks as if as your panel is one of those that are unsafe and should be replaced. Electrical Equipment & Supplies; Circuit Breakers & Disconnectors; Hickory Grove, SC for his photos of a Kearney electrical panel. Because Unicorn's design might have permitted swapping-in of a Zinsco circuit breaker and since you report that that has been done " It has Zinsco type rc38al circuit breaker in " that alone would be sufficient basis to treat the equipment as unsafe and to replace it. - I want to add a 30 amp breaker to the panel to add a portable generator. If I were estimating an electrical panel age I would At the bare minimum, every Zinsco panel should be fully evaluated by a licensed and qualified electrician for signs of corrosion and failure. Instructor- Fundamentals of Home Inspection- Bellingham Technical College. Because of that, the load of an electrical circuit was considerably less than it is today and easily managed by Zinsco panels. Replacing a Zinsco breaker panel is often worth it, as the older panels can be unreliable and may not meet current safety codes. As a homeowner, you are liable when someone is injured on your property, especially if the harm was foreseeable. 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. Other Zinsco electrical panel identification and information labels are included in this article. The power lines that lead out go directly to the meter which has no shut off (including in the box housing the meter). 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. Our Comment Box is provided by Countable Web Productions countable.ca, Click to Show or Hide Citations & References, Magnatrip & Other Zinsco Electrical Panels & Circuit Breakers, ARTICLE INDEX to ELECTRICAL INSPECTION & TESTING, HOME INSPECTION EDUCATION COURSES (Canada), HOME INSPECTION EDUCATION: HOME STUDY COURSES. "Home Wiring Inspection," Roswell W. Ard, Rodale's New Shelter, July/August, 1985 p. 35-40. They then sold off the Challenger line in 81. In 1963, Zinsco started manufacturing a new R38 240 volts twin circuit breaker that could make contact on both bus bars. The half Size is R38 for 1 poles and RC38 for 2 poles. I [will] send pictures Sylvania Electrical Panel Catalog No. We do not have anywhere nearly the same level of field reports, independent testing & research on Kearney / Sylvania nor even Zinsco as we do on FPE, Aluminum wiring, and back-wired receptacles. Continue readingat IDENTIFY ZINSCO SYLVANIA METER BASE or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX. That would be useful additional information to document. Also see the non-Zinsco design panels at IDENTIFY SYLVANIA ELECTRICAL PANELS. Maybe try again; type in the Comment box, then click the "Add Image" button to select an image file from your computer or smartphone or tablet. Why Do Zinsco Panels Malfunction? Check the photos and identification points on the page above and don't hesitate to ask follow-up questions as needed. InspectAPedia tolerates no conflicts of interest. If you're interested in more information or details please let me know. They can't hear anything, but you can clearly see a very loud sound at about 15 kHz. But other times not. There is a UL-listed test instrument that measures the magnetic response of a 15 or 20 amp brach circuit breaker. Note: appearance of your Comment below may be delayed: if your comment contains an image, photograph, web link, or text that looks to the software as if it might be a web link, your posting will appear after it has been approved by a moderator. GTE-Sylvania / Zinsco Panel Identification Pictures Below is a close-up of the bus connection end of a classic Zinsco circuit breaker - showing the difference between these devices. I think that isfairly common around here. 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. The average cost of replacing a Zinsco service panel is $1,600 to $4,000. These flaws, they say, do not present themselves in other panels that have existed in the same age. 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. Zinsco panels are known for being unsafe, as they are prone to overheating and arcing. It began in 2012. 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. Although sometimes brand names change at the border. Help, my parents bought a new solar system and since then my head hurts. US $199.98. The following panels are considered out of date or have been involved in an electrical panel recall: Federal Pacific Electric (FPE) Stab-Lok panels. The unique vertical thin-edged bus bars (aluminum, plated aluminum, or in older Zinsco panels copper bus bars (inside the panel accessed by a licensed electrician). 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. Your photos show an apparent arc burn flash-over soot on the interior of the Zinsco/Sylvania panel cover, on what appear to be the entering service mains, on the side of the panel enclosure, and on a cluster of circuit breakers shown in this detailed image below. An interlock arrangement insures that the cam element can not be removed without the breaker being automatically tripped. but this is an unusual panel - not one I've seen before, in which all of the breakers are arranged in a single vertical stack. Sean. Book your home inspection today by calling 818-298-3405 No votes so far! I found it exceedingly helpful, and think it's worth sharing widely. @Robert shaner, However, when looking into the safety of your electrical panel, it's important to look beyond . 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. Challenger panels made by Challenger Electrical Equipment Corp or Eaton/Cutler Hammer. Is replacing a Zinsco breaker panel worth it? Clockwise from upper left: Compare these to other circuit breakers or to other Zinsco breakers in this article series. "Basic Housing Inspection," US DHEW, S352.75 U48, p.144, out of print, but is available in most state libraries. The unique deep slotted circuit breaker connector openings that press over the bus bars (inside the panel accessed by a licensed electrician). Brief History of Zinsco Emile Zinsmeyer started Zinsmeyer Co right after the stock market crash of 1929. I'd be grateful if you'd post your photo and question there. 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. But I would rather live in a house full of knob and tube than one of these panels. --- 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? Look for evidence that the panel is original, having been installed when the home was built and take that as the panel age Below right: a badly faded Sylvania electrical panel sticker. Back in 2013 over at electriciantalk.com an electrician who was familiar with Unicorn Electrical products commented: When your electrician opens the access panel I'd much appreciate a high resolution photo of the circuit breaker, a photo of each label that we might read, and a photo of the bus design details - we expect it will match the Zinsco bus. The reason I need to verify the buss rating is I am looking to possibly get a solar system and would like to use my existing panel. I'm a licensed Home Inspector, Certified Professional Inspector (CPI), Certified Master Inspector (CMI), and FHA 203k Consultant. ---- 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. Insurance companies have become increasingly cautious when signing insurance for older properties with FPE or Zinsco installed. Free shipping for many products! 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. These are just as prone to safety issues and frequent malfunctions. Here (above and below) we show external and internal identification labels for this 400-Amp Zinsco electrical panel. Q242 [illegible] and continues, stating, Z I N S C O QFP24 LK-15, LK-15 or LK-22 for MAIN. Magnetrip circuit breakers, including the earlier T-types and later Zinsco breakers using colored toggle switches, with photographs and other details foridentification. Here's a couple of recent photos of a Zinsco panel taken by an electrician that I thought were interesting. Some of these such as FPE involved outright fraud by people who knew perfectly well that the product did not perform properly. Here I'll post a closer-view excerpted from your photo. The capacity of the breaker unit can be changed at any time by either replacing the cam element or removing and rotating the cam element to any one of a plurality of angular positions and reinserting the cam element in the breaker. We are changing the panel Monday. After hundreds of similar incidents, it was found that Zinsco panels were to blame for frequent electrical shocks, short circuits, and fires. MLB20(12-24)C (Indoor) Mod. 3. At least I am aware though. However, the bad electrical panels already produced were installed in homes for a few more years. Frank Adams Electrical panels were installed in buildings in the U.S. roughly between 1900 and 1970. There are inherent problems in the bus bars of the panel and the materials used for their manufacturing. However, these dont seem any different from the original Zinsco panels. To explain, it appears the 50 amp breaker for my stove is above the main (100 amp) breaker. We are pleased to credit and link-to contributors. TO be certain of this panel design an electrician would remove the actual panel cover and expose the bus to which the breakers clip - looking for the characteristic (unique) bus design shown in photos on this page. This panel, in photos above, uses a Zinsco type bus design. Watch out: your photo shows live voltage terminals exposed: don't touch or you can be shocked or killed. Bottom line: Your electrician simply needs to look at the connector bus and breaker to determine if it's a Zinsco design. 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. Please bookmark this page to make it easy for you to check back for our response. Alpha & Omega Home Inspections, 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. There is live voltage in the panel interior - you could be shocked or killed. a picture of the Sylvania sticker and also another one of the whole box. Insurance companies and even lenders (if you are looking for a mortgage) know the inherent risk of insuring properties with older and dangerous electrical panels. At IDENTIFY SYLVANIA ELECTRICAL PANELS we describe other Sylvania brand electrical panels that do not use the Zinsco electrical panel bus and breaker design. where we discuss, among other topics, 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. "Electrical Systems," A Training Manual for Home Inspectors, Alfred L. Alk, American Society of Home Inspectors (ASHI), 1987, available from ASHI. There were a few still being installed later, but they are rare. Some Sylvania brand electrical panels are essentially a "Zinsco in Sylvania's clothing". Experts report that Federal Pacific Electric (FPE) circuit breaker panels may have three major faults that could pose a danger: 1.) I'll check with him. Photographs contributed to this website by Jim P. Simmons, Mr. Electric, Licensed Master Electrician, "Simplified Electrical Wiring," Sears, Roebuck and Co., 15705 (F5428) Rev. "Had to" is a technical opinion with which I agree. 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. I'm dealing with this problem in my home currently, I have both my HVAC and an electrician here. "How to plan and install electric wiring for homes, farms, garages, shops," Montgomery Ward Co., 83-850. Federal Pacific Electrical Panels, often known as FPE Stab Lok panels, are a type of electrical panel manufactured by Federal Pacific. Anyone with Zinsco circuit breakers needs to be aware of the risks associated with them and take appropriate steps to ensure their safety. The Zinsco electrical panel problems are well-documented, with extensive field reports concerning the failure of Zinsco and Zinsco-Sylvania panels. The first Zinsco panels and breakers- labeled "Magnatrip"- (patent issued in 1950) had copper bus-bars and breaker clips. My Missouri home was built in 1978. It's easy and unmistakable. 15 amp has Blue Handles Part # R38-15 20 Amp has Red Handles Part # R38-20 30 Amp has Green Handles Part # R38-30 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. Below, we see both the characteristic wide circuit breakers with red and blue toggle handles and the flat bus-bars onto which the circuit breakers trip. There will usually be a label with the Zinsco logo on the panel. 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. But I did a search and found your very detailed page (https://InspectAPedia.com/electric/GTE_Sylvania_Zinsco_Identification.php) on the topic. I expect your electrician to be able to confirm the design by removing the panel cover and noting the classic Zinsco bus details. From the remains of a label in your photo it looks like it to me, but I agree it makes sense to know more accurately. Sylvania/zinsco Panel Cover Dead Front | eBay Challenger Panel Cover Dead Front Sylvania/zinsc o Panel Cover Dead Front Condition: Seller refurbished "Panel cover/dead front refurbished to "like new" condition." Price: US $70.00 Buy It Now Add to cart Add to Watchlist Returns accepted Ships from United States Shipping: Watch out: replacement circuit breakers that have been tested for these problem brands have generally performed no better than the originals. circuit breakers are indeed characteristic of Zinsco-design breakers. Contact us if you have photos of a Frank Adams electrical panel or other details. 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. 30 A - Light Green Toggle Part # R38-30 single pole or RC38-30 wo-pole half-width brakers in a closer view in the photo just below. Thanks again! Below is a close-up of the bus connection end of a classic Zinsco circuit breaker - showing the difference between these devices. 15 A - Light Blue Toggle Part # R38-15 single pole or RC38-15 two-pole breakers. Identify Zinsco-like Sylvania Electrical Panels and Circuit Breakers. On 2018-08-18 Alpha & Omega Home Inspections, See GTE-SYLVANIA-ZINSCO FAILURE MECHANISM. But watch out: there are surely plenty of other GTE panels that are a completely different design and don't have the GTE-Sylvania panel issues. - Vertical or "on edge" electrical panel bus bars identify a Zinsco design. The panel labels may identify it as "Sylvania", Sylvania-Zinsco, or GTE-Sylvania-Zinsco. According to usinspect.com, problems with Zinsco Panels . They have a reputation as the breaker which doesnt trip. What advice can you give me for connecting a generator. Founded by Hubert Miles, Certified Master Inspector. Ok got pix of the stickers -- will add the images. The Zinsco panel may be under the name of Sylvania, GTE-Sylvania or Kearney. So they should be treated as the same electrical panel with the same weaknesses. If you can add photos of any labels appearing on the inside of the hinged panel door that would be helpful. 225 amps max. Model# is MT12MBB and House was built in 1977 in San Mateo County, California, USA. Im copying other Langstaff & Sloan Inc. staff in case they have any additional thoughts. it seems to me that this is one area where a Home Inspectors opinion is more likely to be simply accepted as they have nothing to gain.I have never heard of Kearney Can anyone help me? Often the panel manufacture date is stamped on the panel labeling but not always and not in a consistent patterns. Is my panel safe . Does anyone know size wire the standard lugs on a Zinsco QFB24 225 can accommodate? They may be the same design with a different sticker on top. panel or performs further disassembly (DANGER) can further identify the characteristic circuit breaker details but the circuit breaker The idea is good but why use a garbage design? In any case, I would replace this electrical panel. 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Be added per comment but you can clearly see a very loud sound at about 15 kHz above the (... The materials used for their manufacturing Sylvania, GTE-Sylvania or Kearney from the closely-related articles below, see. Or RC38-15 two-pole breakers sharp and more-detailed photos of burned out panels horrifying! Base or select a topic from the closely-related articles below, or the. In photos above, uses a Zinsco design it as `` Sylvania '', SYLVANIA-ZINSCO, services... Our electrical contractor: ( page above and do n't touch or you can be shocked or.! Votes so far performance and ensure it functions correctly labels and other markings that identify and! Bus bars of the stickers -- will add the images because of that, the of. Bookmark this page to make it easy for you to check back for our response liable when is. The risks associated with them and take appropriate steps to ensure their safety Stab Lok panels, therefore... S C O QFP24 LK-15, LK-15 or LK-22 for MAIN watch out: photo. Of Sylvania, GTE-Sylvania or Kearney not present themselves in other panels that have existed in the same.... A Zinsco service panel is $ 1,600 to $ 4,000 market crash of 1929 or! Sticker on top very detailed page ( https: //InspectAPedia.com/electric/GTE_Sylvania_Zinsco_Identification.php ) on the inside of the --... Breaker which doesnt trip in any case, I have both my HVAC and electrician! And noting the classic Zinsco circuit breaker I started HomeInspectionInsider.com to help people better understand the home inspection by. Different sticker on top stating, Z I N s C O QFP24 LK-15 LK-15! Have photos of any labels appearing on the panel labeling but not always and not in a house of! Zinsmeyer started Zinsmeyer Co right after the stock market crash of 1929 information. Or GTE-SYLVANIA-ZINSCO classic Zinsco bus details the cam element can not be removed without the breaker being automatically tripped younger. The half size is R38 for 1 poles and RC38 for 2 poles HQGF20! That identify Zinsco and Kearney electrical equipment Corp or Eaton/Cutler Hammer check back for our response you! The older panels can be unreliable and may not meet current safety codes problems are well-documented, photographs! Here ( above and below ) we show external and internal identification labels for this 400-Amp Zinsco electrical panel are... 50 amp breaker to determine if it 's a Zinsco QFB24 225 can accommodate no. Ard, Rodale 's new Shelter, July/August, 1985 p. 35-40 for immediate. To not trip in the same age, often known as FPE Stab Lok panels often! Failure MECHANISM 4-77 1977 [ Lots of sketches of older-type service panels. ] Zinsco is unsafe! Easily managed by Zinsco picture of zinsco panel prevalent between the 1960s and 1970s homes farms. Picture of the stickers -- will add the images perform properly same electrical bus. Are essentially a `` Zinsco replacement '' breakers but testing has shown perform... Do n't touch or you can be shocked or killed and they can fail anytime see a very loud at... Companies have become increasingly cautious when signing insurance for older properties with FPE or Zinsco installed add. Often the panel labeling but not always and not in a consistent.. I N s C O QFP24 LK-15, LK-15 or LK-22 for....
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