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Important:

 

Read these instructions thoroughly before operating the system. Be sure that the 

connectors are rated for the intended energized use. (See Hubbell catalog (C7) for selecting the correct 

mating product.) For additional information, you may want to reference IEEE Std. 1816, Guide for 

Preparation Techniques of Extruded Dielectric, Shielded Cables Rated 2.5 kV through 46 kV and the 

Installation of Mating Accessories.

 

Note:

 For kits with reducing taps or modular splice kits, please refer to supplemental instructions 

packaged with those components.  

STEP 6. Connection

A.  Clean and lubricate the T-Body, apparatus 

bushing, and insulating plug interfaces with supplied 

lubricant.

  

B.  Hand tighten the loose stud into the insulating 

plug two or three turns if the mating interface is not 

equipped with one.

C.  Align the T-Body to the apparatus bushing 

interface.  Insert the insulating bushing and hand 

tighten to prevent cross-threading.  Tighten the 

insulating bushing to 50-60 ft-lbs of torque using a 

1” socket and a torque wrench.  (See Figure 11.) 

D.  Clean and lubricate the test point cap and snap 

it onto the insulating bushing.  

STEP 7. Grounding

A. Attach a #14 AWG copper wire (or equivalent) 

to the grounding eye of the T-body.  Twist the wire 

at least two turns to ensure it is secured properly.  

Attach the free end to system ground.   

B. Twist the neutral wires into a braid and connect 

to system ground with appropriate connector.  Make 

sure to provide sufficient slack in ground braid to 

provide for future operation.  (See Figure 12.) 

DESCRIPTION

The Hubbell 600 A Deadbreak T-body Connectors 

are designed to terminate underground cables 

and provide a connection to transformers, 

switches, sectionalizing cabinets, and a means 

to create modular splices.  These components 

conform to all requirements of IEEE Std. 386 and 

are designed to mate with all other manufacturer’s 

products that also conform to IEEE Std. 386, 

Interface 11.  

•  

15/25 kV Class 600 A 15.2 kV

CONTENT OF PACKAGE

(1) T-body Housing 

(1) Insulating Plug with Cap

(1) Compression Connector

(1) Cable Adapter 

(1) Stud

(1) Instructions

(1) Lubricant (DO NOT      

     

     SUBSTITUTE)

INSTALLATION TOOLS

• 

Hand Tools

• 

Crimp Tools & Dies

• 

Torque Wrench

!

    CAUTION

The equipment covered by these instructions should be installed, operated and serviced only by competent 

personnel familiar with safety practices. This instruction is written for such personnel and is not intended as a 

substitute for adequate training and experience in safe procedures for this type of equipment.

!

    DANGER

Do not touch or move energized product by hand. Failure to follow this instruction may result in serious or fatal 

injury, as well as damage to the product.

These instructions do not purport to cover all details or variations in equipment nor to provide for every possible contingency to be met in connection with installation, 
operation or maintenance. Should further information be desired or should particular problems arise which are not covered sufficiently for the purchaser’s purposes, the 
matter should be referred to Hubbell Power Systems, Inc.

IS628BT Rev. B 4/18

!

    CAUTION

Optional Capacitive Test Point- When making voltage measurements, the area of and around the voltage test 

point must be dry and free of contaminants.  The voltage test point is not intended for actual voltage measure-

ments or phasing operations and has no direct connection to the conductor.  It uses an impedance capaci-

tance tap and only voltage indicating instruments designed for this application to establish the presence of 

voltage should be used.  A voltage reading will indicate the presence of voltage, but a reading of no voltage is 

not sufficient to establish a de-energized circuit before touching the connector.  Other procedures should be 

implemented to establish a de-energized circuit.

© Copyright 2006 Hubbell Power Systems  

 

 

Printed in U.S.A.

NOTE: Because Hubbell has a policy of continuous product improvement, we reserve the right to change design and specifications without notice.

1850 Richland Ave. East • Aiken, SC 29801  •  Phone: 573-682-5521 • Fax: 573-682-8714

E-mail: hpsliterature@hps.hubbell.com  •  Website: http://www.hubbellpowersystems.com

IS628BT Rev. B 4/18

Hubbell Deadbreak Connector

600 A, 15 / 25 kV Class T-Body

IS628BT

Installation & Operating 

Instructions

NOTES

•  Check contents of box to ensure that it is complete and components are NOT damaged.

•  A shield adaptor may be required for certain power cables.

CONNECTION

TD_03_048E

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