Generac GF20BK 20A 120V GFCI Duplex Receptacle – NEMA 5-20R

Description

The Generac GF20BK is a 20-amp GFCI duplex receptacle for replacing a damaged or malfunctioning generator receptacle. Designed for compatible 120V electrical systems, it provides two grounded outlets and helps reduce the risk of electric shock by interrupting power when a ground fault is detected.

The black thermoplastic housing is designed for panel-mounted applications. The NEMA 5-20R configuration supports standard grounded 15-amp plugs and 20-amp plugs with a horizontal blade. Integrated TEST and RESET controls allow the GFCI function to be checked before use.

Generac GF20BK Key Features

• Ground-fault circuit-interrupter protection
• Duplex design provides two outlets
• Integrated TEST and RESET buttons
• Durable thermoplastic housing
• NEMA 5-20R receptacle configuration
• Accepts compatible grounded 15A and 20A plugs
• Designed for compatible Generac generator panels and electrical equipment

What Is Included

• 1 black 20A GFCI duplex receptacle

Generac GF20BK Specifications

• Brand/application: Generac
• Component designation: GF20BK
• Related Generac part number: 0D4966
• Product type: GFCI duplex receptacle
• Circuit voltage: 120V AC
• Device rating: 20A, 125V
• Frequency: 60 Hz
• Wiring configuration: Two-pole, three-wire grounding
• NEMA configuration: 5-20R
• Color: Black
• Quantity: 1 receptacle

Compatibility: Check Before You Order

This 20A GFCI duplex receptacle is not universally compatible with every generator or electrical box. Before ordering, confirm the following:

• The original receptacle number
• The mounting configuration
• The wiring terminals
• The panel clearance
• The voltage and amperage

Matching these details to your equipment manual helps you choose the correct generator GFCI outlet replacement. If your equipment lists the related Generac part number 0D4966, compare it with the information above.

How the Generac GF20BK GFCI Protection Works

A GFCI receptacle monitors for a ground fault and interrupts power when one is detected. This helps reduce the risk of electric shock. The TEST and RESET buttons let you confirm the protection is working before you connect a load.

Important Safety Information

• The receptacle itself does not provide overload protection for the generator circuit. The correctly rated circuit breaker must remain installed and functional.
• GFCI protection does not replace proper equipment grounding or safe operating procedures.
• Installation should be completed with the generator shut down and all power sources isolated.
• Electrical work should be performed by a qualified technician in accordance with the equipment manual and applicable electrical codes.
• After installation, test the GFCI using its TEST and RESET buttons before connecting a load.

Why Choose the Generac GF20BK Receptacle?

If your generator panel has a worn, damaged, or malfunctioning outlet, replacing it with a compatible receptacle helps restore a grounded connection point. The NEMA 5-20R design accepts compatible grounded 15A and 20A plugs, and the duplex layout gives you two outlets in one device. Its thermoplastic housing is intended for panel-mounted use.

Frequently Asked Questions

What plugs does the Generac GF20BK accept?

The NEMA 5-20R configuration accepts compatible grounded 15-amp plugs and 20-amp plugs with a horizontal blade.

Does this GFCI receptacle protect against overloads?

No. The receptacle does not provide overload protection for the generator circuit. The correctly rated circuit breaker must remain installed and functional.

Is the Generac GF20BK compatible with every generator?

No. It is designed for compatible Generac generator panels and electrical equipment. Confirm the original receptacle number, mounting configuration, wiring terminals, panel clearance, voltage, and amperage before ordering.