ABB - Installation Products K671GAD - 600 Amp, 15/25kV, Deadbreak 600 Series Grounding Device. Copper with EPDM Rubber Insulation.
ABB - Installation Products

K671GAD

UPC: 075114144483


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Overview

The ABB K671GAD 600 Series Deadbreak Grounding Device is a high-reliability, direct grounding solution for 15/25kV electrical systems. Engineered for utility substations, industrial power distribution, and critical infrastructure, this device provides a permanent 600A, 25kA rated ground connection with a removable protective cap for enhanced safety during operations. Key specifications include: - Voltage class: 15kV (8.3kV phase-to-ground, 14.4kV phase-to-phase) and 25kV (16.2kV phase-to-ground, 28kV phase-to-phase) - Continuous current rating: 600A - Momentary rating: 25kA symmetrical for 10 cycles - Insulation: EPDM rubber with copper construction for durability and conductivity - Impulse withstand: 95kV BIL (15kV class) and 140kV BIL (25kV class) - Corona extinction: 11kV AC (15kV) and 21.5kV AC (25kV) at 3pC sensitivity The device connects to the back interface of 600A series elbow connectors (T-body) to ground de-energized circuits, eliminating the need for temporary grounding adapters. The included insulating cap with capacitive test point enables safe voltage verification before grounding, supporting hot-stick operations. This grounding device is designed to improve safety processes and reduce downtime during maintenance or fault events.
  • 600A continuous current rating with 25kA symmetrical momentary rating
  • Compatible with 15kV and 25kV voltage classes per ANSI/IEEE Standard 386
  • EPDM rubber insulation with copper construction for durability and conductivity
  • Removable protective cap with capacitive test point for safe voltage verification
  • Hot-stick workable design for enhanced safety during operations

Specifications

Amperage Rating
600 A
Application
15/25 kV, 600 Amps
Conductor Material
Copper
Connection
Threaded
Current Rating
600 A
Insulation
EPDM Rubber
Length
10.56 in
Material
Copper with EPDM Rubber
Series
600 Series
Special Features
5/8-11 Threaded Stud
Standard
ANSI/IEEE Standard 386
Type
Grounding Device
Voltage Rating
15/25 kV
Package Dimensions (L x W x H)
0.01 IN x 0.01 IN x 0.01 IN
Package Dimensions (L x W x H)
0.0254 cm x 0.0254 cm x 0.0254 cm
Package Weight (Imperial)
1.0000 L
Package Weight (Metric)
0.4540 kg
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900 Amp, 15/25kV, 600 Series Straight Receptacle Housing, (Lug and Cable Adapter not included) with Test Point, Deadbreak.

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Frequently Asked Questions

Where is the GAD installed in an electrical system?

The Elastimold GAD easily installs in the rear interface of a 600 A series elbow connector (T-body), providing a direct and permanent grounding connection.

What types of grounding clamps are compatible with the GAD?

The GAD is available for both C-clamp and ball-stud grounding clamp types. Series GAD and GADDR are for C-clamps, while BGAD and BGADDR are for ball-stud connections.

What are the voltage classes for the GAD?

The Elastimold GAD is available for 15 kV, 25 kV, and 35 kV system classes.

What fault current can the GAD withstand?

The Elastimold GAD has a short circuit withstand rating of up to 25 kA. It is designed for 600 A and 900 A applications.

What is the Elastimold GAD used for?

The Elastimold grounding-aid device (GAD) provides a permanent, reliable, direct 600 A or 900 A, 25 kA rated ground connection in underground systems when fault currents exceed 10 kA.

Where is the GAD installed in an electrical system?

The Elastimold GAD easily installs in the rear interface of a 600 A series elbow connector (T-body), providing a direct and permanent grounding connection.

What types of grounding clamps are compatible with the GAD?

The GAD is available for both C-clamp and ball-stud grounding clamp types. Series GAD and GADDR are for C-clamps, while BGAD and BGADDR are for ball-stud connections.

What are the voltage classes for the GAD?

The Elastimold GAD is available for 15 kV, 25 kV, and 35 kV system classes.

What is the Elastimold GAD used for?

The Elastimold grounding-aid device (GAD) provides a permanent, reliable, direct 600 A or 900 A, 25 kA rated ground connection in underground systems when fault currents exceed 10 kA.

What fault current can the GAD withstand?

The Elastimold GAD has a short circuit withstand rating of up to 25 kA. It is designed for 600 A and 900 A applications.

How to Install the K671GAD Deadbreak Grounding Device and K676GADDR Insulated Cap

This guide provides step-by-step instructions for the safe installation of the K671GAD Deadbreak Grounding Device and the K676GADDR Insulated Cap with Test Point onto a 600Amp elbow, including wiring, lubrication, and torque specifications.

Tools needed:

600ATM assembly tool, Torque wrench, 2 hotsticks

Supplies needed:

Lubricant (supplied), No. 14AWG (2.55mm) copper wire or equivalent

  1. Prepare for Installation and Lubricate Interfaces

    DANGER: Ensure all apparatus is de-energized before beginning installation. This product must be installed by competent personnel trained in high voltage electrical equipment safety practices. Inspect all parts for damage, proper rating, and compatibility with mating parts. Clean and lubricate the K671GAD Grounding Connector interface and the 600Amp elbow interface using only the supplied lubricant. DO NOT SUBSTITUTE, as other lubricants may harm the product or mating parts.

  2. Install and Ground the K671GAD Grounding Connector

    Insert the K671GAD Grounding Connector into the 600Amp elbow and rotate it clockwise to engage the stud. Insert the 600ATM assembly tool into the K671GAD Grounding Connector. Using a torque wrench, continue rotating clockwise until the connector stops, then tighten to 55-60 foot-pounds torque. Remove the 600ATM tool. Using a No. 14AWG (2.55mm) copper wire or equivalent, insert one end through the grounding eye on the K671GAD Grounding Connector. Twist the wire tightly, taking care not to damage the eye. Connect the free end of this grounding wire to the system ground.

  3. Install and Ground the K676GADDR Insulated Cap

    Prepare a No. 14AWG (2.55mm) copper wire or equivalent. Insert one end through the grounding eye of the K676GADDR insulated cap, form a small loop, and twist tightly without damaging the eye. Connect the free end of this grounding wire to the system ground. Ensure the wire length is sufficient to reach the grounding point and wrap around the insulated cap approximately 10 times (90 inches) during assembly. Clean and lubricate the K676GADDR insulating cap and the K671GAD interface using only the supplied lubricant. Attach the first hotstick tool to the insulated cap's assembly/disassembly bail. Push the cap receptacle onto the K671GAD bushing interface until it stops. With a second hotstick, engage the grounding wire and establish slight tension, wrapping it loosely around the center of the insulated cap body. While pushing against the bushing interface with the first hotstick, rotate the cap clockwise until the threads engage. Discontinue pushing and continue turning until resistance is felt. Tighten to a maximum of 15 ft-lb. DO NOT OVERTIGHTEN. Remove the second hotstick.

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