disconnect height from floor for electric enclosure NFPA70 Section 404.8 calls for a maximum height above the floor for a disconnect . $46.99
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1 · maximum height of disconnect handle
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What is the maximum height a disconnect or breaker handle can be from the ground? I am referring specifically to a breaker disconnect handle on the front of a drive enclosure. What section of NEC is this? Another question is I think you need 36" clearance in .NFPA70 Section 404.8 calls for a maximum height above the floor for a disconnect .
When the top of a disconnect (safety) switch is mounted at 6 feet (72 inches or 1.8 meters) above the floor, and the top of the panelboard exceeds 6.5 feet, the minimum workspace height . NFPA70 Section 404.8 calls for a maximum height above the floor for a disconnect of 79 inches but provides for an exception (#2): "Switches and circuit. The code requires switches in a readily accesible place, and the location of the switch shall not exceed 6'7" above the floor or working platform per Section 404.8(A). Other .
The model codes, such as the U.S. NEC, do not specify a minimum height for an electrical panel box or enclosure itself above the floor surface. Rather the minimum height is described as the height above floor to the highest circuit . There's a maximum height, NEC 404.8(a) - center of the grip of the operating handle not more than 2.0 meters (6'7") above floor level, but there is no minimum height .
In addition to the dimensions shown in Table K-1, workspace shall not be less than 30 inches (762 mm) wide in front of the electric equipment. Distances shall be measured from the live parts if .
The answers is no. I always try to do 72 inches to main disconnect, unless something requires me to go lower. The ‘clearance’ around the electric panel must be at least 30 inches wide, on either or both sides, with a front workspace clearance of 3’. *Note: The electric panel door, if/when .
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What is the maximum height a disconnect or breaker handle can be from the ground? I am referring specifically to a breaker disconnect handle on the front of a drive enclosure. What section of NEC is this? Another question is I think you need 36" clearance in front of 480V panel by code.When the top of a disconnect (safety) switch is mounted at 6 feet (72 inches or 1.8 meters) above the floor, and the top of the panelboard exceeds 6.5 feet, the minimum workspace height required for the panelboard is the height of the panelboard itself.
NFPA70 Section 404.8 calls for a maximum height above the floor for a disconnect of 79 inches but provides for an exception (#2): "Switches and circuit.For example, a panelboard is installed next to a disconnect (safety) switch on a concrete block wall. The actual panelboard height is 5 feet, 4 inches, but it is mounted 20 inches from the floor. The top of the panelboard is 84 inches (7 feet) above the floor. The code requires switches in a readily accesible place, and the location of the switch shall not exceed 6'7" above the floor or working platform per Section 404.8(A). Other than that, I think common sense and good judgment should be the determining factor.
The model codes, such as the U.S. NEC, do not specify a minimum height for an electrical panel box or enclosure itself above the floor surface. Rather the minimum height is described as the height above floor to the highest circuit breaker or control switch in the panel enclosure. There's a maximum height, NEC 404.8(a) - center of the grip of the operating handle not more than 2.0 meters (6'7") above floor level, but there is no minimum height defined in NEC. Possible but unlikely to have a local modification to adopted code, but plain vanilla NEC does not define one.
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In addition to the dimensions shown in Table K-1, workspace shall not be less than 30 inches (762 mm) wide in front of the electric equipment. Distances shall be measured from the live parts if they are exposed, or from the enclosure front or opening if the live parts are enclosed. The answers is no. I always try to do 72 inches to main disconnect, unless something requires me to go lower. The ‘clearance’ around the electric panel must be at least 30 inches wide, on either or both sides, with a front workspace clearance of 3’. *Note: The electric panel door, if/when equipped with one, must be able to open to a 90° degrees. Hope that helps. What is the maximum height a disconnect or breaker handle can be from the ground? I am referring specifically to a breaker disconnect handle on the front of a drive enclosure. What section of NEC is this? Another question is I think you need 36" clearance in front of 480V panel by code.
When the top of a disconnect (safety) switch is mounted at 6 feet (72 inches or 1.8 meters) above the floor, and the top of the panelboard exceeds 6.5 feet, the minimum workspace height required for the panelboard is the height of the panelboard itself. NFPA70 Section 404.8 calls for a maximum height above the floor for a disconnect of 79 inches but provides for an exception (#2): "Switches and circuit.
For example, a panelboard is installed next to a disconnect (safety) switch on a concrete block wall. The actual panelboard height is 5 feet, 4 inches, but it is mounted 20 inches from the floor. The top of the panelboard is 84 inches (7 feet) above the floor. The code requires switches in a readily accesible place, and the location of the switch shall not exceed 6'7" above the floor or working platform per Section 404.8(A). Other than that, I think common sense and good judgment should be the determining factor.The model codes, such as the U.S. NEC, do not specify a minimum height for an electrical panel box or enclosure itself above the floor surface. Rather the minimum height is described as the height above floor to the highest circuit breaker or control switch in the panel enclosure.
There's a maximum height, NEC 404.8(a) - center of the grip of the operating handle not more than 2.0 meters (6'7") above floor level, but there is no minimum height defined in NEC. Possible but unlikely to have a local modification to adopted code, but plain vanilla NEC does not define one.In addition to the dimensions shown in Table K-1, workspace shall not be less than 30 inches (762 mm) wide in front of the electric equipment. Distances shall be measured from the live parts if they are exposed, or from the enclosure front or opening if the live parts are enclosed. The answers is no. I always try to do 72 inches to main disconnect, unless something requires me to go lower.
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disconnect height from floor for electric enclosure|height disconnect requirements