A. The National Electric Code (NEC) includes the minimum standards for installing a circuit breaker panel box. Guys, I know the maximum height for a breaker in a panel is 6 ft 6 in but I dont know which article of the code its in. where is height of panel defined in NEC? NEC Questions 006 - Mike Holt Apr 3, 2003. I stated that 6'5" is permitted due to it being less than the maximum. Height. I'm thinking that just pertains to the main, and not to the branch circuit breakers. With the height of the gutter and the new main panel on top. Q. The maximum height allowed for the circuit breaker box is 6 feet. If it is in a mobile home Art.550.11 (A) states that the bottom of the panel has to be at least 24" above the floor. What is the maximum height of a disconnect? max height of circuit breakers - ECN Electrical Forums This does not apply only to the main. The passenger compartment configuration is an important factor when calculating the actual CG. Outdoor mobile home disconnecting means shall be installed so the bottom of the enclosure containing the disconnecting means is not less than 600 mm (2 ft) above finished grade or working platform.The disconnecting means shall be installed so that the center of the . Battery Calculations. Circuit breakers and fuses must be readily accessible, and they must be installed so the center of the grip of the operating handle of the fuse switch or circuit breaker . 5. Residential. How high should a sub panel be mounted? Circuit breakers and fuses must be readily accessible, and they must be installed so the center of the grip of the operating handle of the fuse switch or circuit breaker, when in its highest position, isn't more than 6 feet, 7 inches above the floor or working platform, unless the installation is for [240.24 (A)]: But switches, and circuit breakers used as switches, shall be installed so the center of the grip of the operating handle of the switch or circuit breaker, when in its highest position, is not more than 6 ft 7 in . bennie. Main panel minimum height from floor? - Electrical ... Rule of thumb: Put the top of the panel at 6 foot and you will never miss. Height of panel within residential unit | The Building ... 9 Min Read. Exception No. Code Q&A - EC&M What is the maximum number of circuit breakers allowed in ... Apr 3, 2003. I'll see you and raise you one.inch. Mounting Height The maximum height for an electric meter is six feet from the ground to the center of the box. panel boards shall be 6ft 7inch above the finish floor. Commercial. What is code for electrical panel height? max height of circuit breakers - ECN Electrical Forums This does not apply only to the main. What is the maximum height of a circuit breaker? Member. The circuit breaker at the top of the box may not be higher than 6-foot 7-inches from the floor. Was spec replace main gear on top of a gutter to splice onto the service conductors. Click to expand. Article 110.26 in the National Electrical Code (NEC) contains specifications for the working space dimensions required around all electrical equipment. April 8, 2014, 10:13pm #2 From purely a code standpoint the center of the grip of the operating handle of the switch or circuit breaker when in the highest position is not more than 6'7"…we can read that in 404.8 of the NEC. NEC Questions. ADAG compliance, in dwellings the highest overcurrent device is a maximum of 48 inchs above the finished floor. The mounting height should be 6'6" to the center of the panel. The center of the breaker handle in its highest position cannot be more than 6-foot 7-inches above the floor, per the Residential Edition of the Florida Building Code [FBC E3705.7 (6)], International Residential Code (IRC), and the National Electrical Code [NEC 240 . height of the highest switch but there is no max. Sub Panel - NEC code. It's set at 6'-7" above the floor, with an exception allowed for supplementary breakers that are necessary for major applianes (utilization equipment). I've always heard 6'7" for maximum height for main breaker but I need the NEC code section proving it. Re: Panelboard Mounting Height. Russ. The main can be at the bottom on some panels. above the floor or working platform [404.8(A)]. A. I'm looking in the code and can't seem to find the minimum. ('99 NEC) This rule applies to switches, and circuit breakers used as switches. However, 550.32(F) requires the service disconnecting means enclosure for mobile and manufactured homes to be mounted a minimum of 2 feet above the finished grade. 380-8. Rule of thumb: Put the top of the panel at 6 foot and you will never miss. Three of these standards concern the box location, clearance and space around the box, and box height. (I'm look through ADA standards as we speak but am yet to find that) mark handler Sawhorse Joined Oct 25, 2009 The minimum height for a circuit breaker box is 4 feet, though the ideal height is between 5 feet and 6 feet. for more on this. The NEC does not specify a minimum height, only the maximum height of 2 meters or 6'7" to to center of the operating handle. The main can be at the bottom on some panels. (A) Accessibility. What is the maximum height that a safety switch can be installed? Art.404.8 (A) gives you the max. Others can be found in the various specific articles, such as 430 covering motors. The mounting height should be 6'6" to the center of the panel. In a mobil home the min is 24 inches off finish floor. The maximum height allowed for the circuit breaker box is 6 feet. What is the maximum height a disconnect or breaker handle can be from the ground? Wednesday, February 20, 2019. Section 308.2.1. But there is a maximum height allowed for an electrical panel, which is based on the height of the highest breaker switch in the panel. But the 2008 edition of the NEC deleted the . The service equipment on the outside of mobile homes are . There is 500a breaker and at the center of the handle is 6'8" It's feeding a soft start then to the 350hp well pump. That was the absolute maximum, unless the manufacturer specified a lower number, which was often the case for smaller panel boxes. For an inverse-time breaker: 22 A x 2.5 = 55A, next size up = 60A . Isn't there wording such as 'likely to be operated' or some such? Does NEC 2017 240.24(4) apply. Additionally, how high is a breaker panel? above the floor or working platform, unless one of the following applies: The box can be installed in a closet that is not located in bathrooms. Mar 31, 2005. Subsequently, question is, how high should a sub panel be mounted? of the switch or circuit breaker, when in its highest position, is not more than 6 ft 7 in. #6. Use Page 70-57"9, or Tables 4 and 5 if wires are all different size. Height. Also, how high should a sub panel be mounted? There is no minimum height for switches and circuit breakers. The maximum height allowed for the circuit breaker box is 6 feet. I am referring specifically to a breaker disconnect handle on the front of a drive enclosure. The max height for other similar switches is 2.0 meters (6 ft, 7 inches), but this dimension does not appear to be associated with service disconnects for some reason. Additionally, how high is a breaker panel? 2 permits switches and circuit breakers used as switches to be mounted higher than 6 ft 7 in. 4. The mounting height should be 6'6" to the center of the panel. There is 500a breaker at the center of the handle is 6'8" It's feeding a soft start then to the 350hp well pump. Article 220 of the National Electrical Code (NEC) provides requirements for calculating branch circuit, feeder and service loads. A height limit applies to mounting a panel box. Does NEC 2017 240.24 (4) apply. The circuit breaker at the top of the box may not be higher than 6-foot 7-inches from the floor. Then of course we see it again in 240.24 (A) as well…again the 6'7" threshold. The center of the breaker handle in its highest position cannot be more than 6-foot 7-inches above the floor, per the Residential Edition of the Florida Building Code [FBC E3705.7 (6)], International Residential Code (IRC), and the National Electrical Code [NEC 240.24 (A)]. Esteemed Member. Also to know, what is the maximum height of a main breaker? One way to help safeguard people from hazards arising from electricity use is to ensure there is sufficient working space in front of and around electrical equipment. The National Electrical Code (NEC) specified that a lighting and appliance branch circuit panelboard could not contain more than 42 overcurrent devices (circuit breakers). (F) Mounting Height. Another question is I think you need 36" clearance in front of 480V panel by code. Location A circuit breaker box cannot be installed in a bathroom. But switches, and circuit breakers used as switches, shall be installed so the center of the grip of the operating handle of the switch or circuit breaker, when in its highest position, is not more than 6 ft 7 in. Height. Breaker panel must be at least 4 feet off the ground, but no higher than 6 feet. One of my mechanics disagrees with me and I need back up from the NEC. Makes you wonder, doesn't it. A switchboard or multiple . Re: max height of circuit breakers. But I suspect there is more to the reason behind the question. Sep 13, 2010 #6 mtlogcabin said: . Height. There is no maximum height specified for the panel box, but the center of the highest breaker handle in its highest position cannot be more than 6-foot 7-inches above the floor. The max height for other similar switches is 2.0 meters (6 ft, 7 inches), but this dimension does not appear to be associated with service disconnects for some reason. The maximum height for the top breaker or breakers is 6'7". Hereof, What is code for electrical panel? Sub Panel - NEC code. After circuits have been derated to get proper wire size use Table 3A if wires are all same size. Joined Mar 31, 2010 Messages 1,344 Location New England. The maximum height allowed The minimum height for a circuit breaker box is 4 feet, though the ideal height is between 5 feet and 6 feet. or min. The maximum height for the top breaker or breakers is 6'7". The NEC does not mandate a minimum mounting height for panelboards, disconnects, or meter enclosures. The minimum height for a circuit breaker box is 4 feet, though the ideal height is between 5 feet and 6 feet. What is the maximum height that a safety switch can be installed? It is from the ICC/ANSI A117.1, 2003 Edition. The highest switch in a Subpanel in accessible units should be no higher than a maximum reach height of 48 inches. With the height of the gutter and the new main panel on top. # 84482 04/05/03 03:59 AM. Maximum Feed Breaker Capacity HWBP-2S-15-120L3 HWAP-8D-15-120L3 HWBP-8D-15-120L3 120 / 240 V ~ 50/60 Hz . A permanent platform must be below the panel box if the top circuit breaker exceeds this specific height. An exception is allowed for supplementary breakers that are part of an appliance (utilization equipment) or adjacent to an appliance. and working space according to the National Electrical Code . The minimum height for a circuit breaker box is 4 feet, though the ideal height is between 5 feet and 6 feet. height of the disconnecting means. No defining height is mandated from floor to panel box base. #7. The NEC National Electrical Code does not specify a minimum height for a service meter, however the typical minimum height for mounting a service meter on side of a house is 5 to 6 feet above the finished grade or . What section of NEC is this? . Note: The 10 AWG conductors are protected . 240.24 Circuit breaker max height no more than 6'7" above floor or working platform. 4.The main breakers in the building provide over current protection for the power panels, and must not be sized larger than the ampacity rating of the power panels. Height. I think it's 6ft. The Minimum Height for an Electric Service Meter is actually specified by the local electric utility provider or the power company. Click to expand. Depending on where your panel is and if it is service equipment this may apply.. 550.32 Service Equipment. These standards set the minimum safety standards for panel boxes. NEC allows a maximum of six hand movements at one location to shut off all the power of a building with a large power-distribution system. Ground wires should be run with all branch circuits. The following is a listing of some of them. NEC Requirements For Circuit Breakers. Mike Holt. What is the minimum mounting height for a panelboards, disconnect, or meter located in or on a building? The National Electrical code has several requirements for circuit breakers (overcurrent protective devices). Mike_Whitt (Mike Whitt) July 26, 2007, 8:51pm #3 On anything other than a mobil home the panel must be above ground. 3", but just want to make sure. By Mike Holt for EC&M Magazine. Re: max height of circuit breakers. Covid-19 Impact on Global Three-phase Circuit Breaker Market Insights, Forecast to 2026 is a market research report available at US 00 for a Single User PDF License from RnR Market Research Reports Library. Yankee Registered User. NEC 404.8 (A) ('02) and 380-8 ('99) both say (Exceptions notwithstanding), it's 2.0m (6ft 7in )to the center of the operating handle when it's in its highest position. What is the maximum allowed height of a circuit breaker (OCPD) above the floor? Was spec replace main gear on top of a gutter to splice onto the service conductors. I was looking in 110.26 and 230 but cant seem to find it. If so how would a circuit breaker fall under that def? The NEC does not mandate a minimum mounting height for panelboards, disconnects, or meter enclosures. See our blog post What is the maximum allowed height of a circuit breaker (OCPD) above the floor? But switches, and circuit breakers used as switches, shall be installed so the center of the grip of the operating handle of the switch or circuit breaker, when in its highest position, is not more . Also Know, how high is a breaker panel? wiz1997 said: 6 feet inside or out. is sized in accordance with 240.6(A), 430.52(C)(1) Ex. Why do you feel that this height is an issue? Re: max height of circuit breakers. Mounting Height. Switches containing fuses and circuit breakers shall be readily accessible and installed so that the center of the grip of the operating handle of the switch or circuit breaker, when in its highest position, is not more than 2.0 m (6 ft. 7 in.) G. The maximum height for an electric meter is six feet from the ground to the center of the box. 6 feet 7 inches . Copy Link to Clipboard. A. if they Member. Maybe I skimmed past it. I've always heard 6'7" for maximum height for main breaker but I need the NEC code section proving it. #7. No defining height is mandated from floor to panel box base. I have a job coming up I'll probably have to turn the panel upside down to get the main breaker down low enough. Esteemed Member. 1, and Table 430.150. MCP Breakers for Motors 125% or next larger size Standard breaker sizes are listed Page 70-74, 240-6 NEC Conduit Sizing 1. Sub Panel - NEC code. If ADA or ANSI A116.1 does not apply, then NEC 240.24 (A) requires the operating handle of the highest breaker in its highest position to be no more than 6'-7" above the floor. This working space also shall be maintained to permit ready and safe . of height of the "panel board". A permanent platform must be below the panel box if the top circuit breaker exceeds this specific height. Code Q&A. Nov. 6, 2008. But I suspect there is more to the reason behind the question. What's the minimum and maximum height for electrical equipment that contains circuit breakers or switches? 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