• Revision eliminates GFCI protection for receptacles rated above 125-volt, single phase, 20-ampere (240-volt and 3-phase receptacles) at agricultural buildings. GFCI protection is only required for 125-volt, 15- and 20-ampere receptacles installed in areas having an equipotential plane, outdoors, damp or wet locations, and dirt confinement areas for livestock.

Expert Analysis

For the 2020 NEC, a new provision was added to 547.5(G) stating that GFCI protection is not required for other than 125-volt, 15- and 20-ampere receptacles installed within certain areas of an agricultural building. This new limitation on GFCI provisions will apply to areas having an equipotential plane, outdoors, damp or wet locations, and dirt confinement areas for livestock.

According to the substantiation for this change, the use of equipment such as portable air compressors, welders, milk pumps, feed augers and conveyors often causes unintended or unwanted tripping of GFCI protective devices, which can cause property damage.

Leviton Solution

When it comes to outdoor GFCI protection, it’s smart to choose SmartlockPro® GFCIs. Our large selection includes outdoor grade Weather-Resistant versions that are also tamper-resistant. Constructed with UV stabilized thermoplastic for high cold impact resistance, the devices feature stainless steel straps and mounting screws. For the increased power that agricultural environments demand, Leviton’s 20-Amp GFCI’s are up to the test.
Important: Covers must be used with WR GFCI receptacles in damp or wet locations per NEC Section 406.9

             Cat. No. GFWT2-KW