• NECA 406-2014
Provide PDF Format

Learn More

NECA 406-2014

  • Standard for Installing and Maintaining Residential Generator Sets
  • standard by National Electrical Contractors Association, 2014
  • Publisher: NECA

$20.00$40.00


This standard describes installation and maintenance procedures for residential generators fueld by gasoline, natural gas, or liquefied petroleum gas (LP or propane) and permanently installed at one-family dwellings to provide backup power. Residential generators are usually rated 240/120 volts, single-phase, three-wire. Some larger one-family dwellings have three-phase electrical systems and may use backup generators rated 208Y/120 volts, three-phase, four-wire.

This standard also covers the installation of related items such as non-automatic (manual) or automatic transfer switches (MTS or ATS), disconnect switches, control panels, and fuel supply systems, and describes some electrical power distribution system design consideration related to the use of generators to supply important, non-emergency loads in single-family dwellings.

Residential generators are considered to be "optional standby power systems" in accordance with the NEC.

Related Products

NECA 503-2005

NECA 503-2005

Standard for Installing Fiber Optic Lighting Systems..

$20.00 $40.00

NECA 1-2006

NECA 1-2006

Standard Practice of Good Workmanship in Electrical Contracting..

$20.00 $40.00

NECA 120-2006

NECA 120-2006

Standard for Installing Armored Cable (Type AC) and Metal-Clad Cable (Type MC)..

$20.00 $40.00

NECA 121-2007

NECA 121-2007

Standard for Installing Nonmetallic-Sheathed Cable (Type NM) and Underground Feeder and Branch-Circu..

$20.00 $40.00