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ABB - Installation Products 3702-A1 - 35kV 200 Amp, Loadbreak Feed-Thru Insert, rated for single phase applications only. Fully rotatable for 360 degree positioning. Includes bail assembly to secure feed-thru insert to bushing well.
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ABB Installation Products 3702-A1 35kV 200 Amp, Loadbreak Feed-Thru Insert, rated for single phase applications only.…

UPC: 783786470259


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Overview

The ABB 3702-A1 Loadbreak Feed-Thru Insert is a 35kV, 200 Amp rated component designed for single-phase applications in power distribution systems. This feed-thru insert enables safe connection and disconnection of electrical circuits under load, meeting ANSI/IEEE Standard 386 requirements. It features a fully rotatable 360-degree design for flexible installation and alignment with ANSI standard bushing wells, ensuring optimal positioning during setup and maintenance. Key specifications include a maximum phase-to-ground operating voltage of 21.1kV, 150kV BIL impulse withstand, 50kV AC one-minute withstand, and 103kV DC 15-minute withstand. The unit supports continuous and loadbreak operation at 200 Amps with a 10kA symmetrical momentary and fault close rating for 10 cycles. Corona extinction is rated at 26kV AC with 3pC sensitivity. Applications include transforming radial-feed transformers into loop-feed units, providing extra tap connections for elbow arresters, and interfacing shielded cable with sub-surface transformers, generators, pad-mounted transformers, switchgear, regulators, and reclosers. The 3702-A1 is compatible with Elastimold universal bushing wells and includes a black vent ring, protective shipping cap, lubricant, installation instructions, and bail assembly for secure mounting. Peroxide-cured insulation and jacket materials ensure long-term reliability in utility and industrial environments.
  • 35kV voltage class, 200 Amp continuous and loadbreak rating
  • Fully rotatable 360° for flexible installation and alignment
  • Includes bail assembly for secure mounting to ANSI bushing wells
  • Meets ANSI/IEEE Standard 386 with 150kV BIL impulse withstand
  • Compatible with sub-surface transformers, switchgear, and pad-mounted transformers

Specifications

Application
Designed for use as an apparatus bushing interface and provide extra tap connection, the 3702A1 is easily installed in an Elastimold universal bushing well and mated with an appropriate Elastimold product
Material
EPDM-Rubber
Size
12.00 inch (304.7 mm) long, 6.90 inch (172.7 mm) wide
Special Features
35kV, 200 Amp Loadbreak Rated. Transform radial feed transformer into loop-feed unit. Provide extra tap for elbow arrester connection. Peroxide-cured insulation and jacket. Rated for Single Phase switching. Black vent ring. Full 360 Degree positioning
Standard
ANSI/IEEE 386
Temperature Rating, Maximum
149 F
Temperature Rating, Maximum
65 C
Temperature Rating, Minimum
-40 F
Temperature Rating, Minimum
-40 C
Type
Feed-Thru Insert
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)
5.6200 L
Package Weight (Metric)
2.5490 kg
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Frequently Asked Questions

What is the momentary and fault close rating?

The momentary and fault close rating is 10kA Symmetrical for 10 Cycles.

What is the 3702A1 product?

The 3702A1 is a 35kV 200A Loadbreak Feed-Thru Insert, 1Ø rated with two 35kV class, 200 Amp load break bushing interfaces.

What is the voltage rating of the 3702A1?

The 3702A1 has a 35kV voltage class with a maximum phase-to-ground operating voltage of 21.1kV.

What is the current rating of this feed-thru insert?

The 3702A1 is rated for 200 Amp continuous and loadbreak current, single phase.

What equipment is compatible with the 3702A1?

It can connect shielded cable to sub-surface transformers, generators, pad mounted transformers, switchgear, regulators, and reclosers.

Does the 3702A1 meet industry standards?

Yes, the 3702A1 meets ANSI/IEEE Standard 386, Latest Revision.

What is the impulse withstand rating?

The BIL Impulse Withstand rating is 150kV (1.2 x 50 microsecond wave).

What is the corona extinction voltage?

The corona extinction voltage is 26kV AC at 3pC sensitivity.

Can the 3702A1 be rotated during installation?

Yes, the 3702A1 is fully rotatable for 360° positioning.

What is included in the 3702A1 kit?

Each kit contains one bushing insert, two protective shipping caps, lubricant, installation instructions, and a bail assembly.

How to Install the 3702A1 Loadbreak Feed-Thru Insert

This guide provides step-by-step instructions for installing the 3702A1 Loadbreak Feed-Thru Insert into an apparatus bushing well, including lubrication, mounting, grounding, and preparation for mating connections. All apparatus must be de-energized during installation.

Estimated time: 45m

Tools needed:

Wire strippers

Supplies needed:

3702A1 Loadbreak feed-thru insert, Stainless steel plate, Stainless steel hook bolts, Stainless steel wing nuts, Lubricant (supplied or ELASTIMOLD approved), No. 14 AWG (2.5mm²) copper wire, Suitable connector for grounding wire, Mating electrical connectors/caps

  1. Verify Mounting Bolt Clearance

    Inspect the apparatus bushing well to ensure mounting bolts do not protrude more than 1/2 inch (12mm) above the top. If they do, consult the apparatus manufacturer to shorten them, as excessive protrusion will prevent proper assembly of the feed-thru insert.

  2. Clean and Lubricate Bushing Well and Insert

    Ensure the apparatus bushing well is dry and free of contaminants. Apply the supplied ELASTIMOLD approved lubricant to the bushing well, its outer surface, and the bushing well interface and cuff area of the feed-thru insert. Do not use substitute lubricants as they may be harmful.

  3. Install and Align Feed-Thru Insert

    Carefully place the lubricated feed-thru insert into the apparatus bushing well. Rotate it clockwise until it is fully seated, but do not force it to avoid damaging threads. Utilize the 180-degree adjustment feature by rotating it counter-clockwise up to a half turn to achieve the desired alignment, stopping when a definite stop is felt.

  4. Assemble Hold-Down Bail

    Assemble the hold-down bail. Insert hook bolt 'A' into the upper bushing well tab. Place the plate over the threaded end of bolt 'A' with detents facing upward, selecting the hole that provides the most vertical position. Secure with a wing nut. Engage hook bolt 'B' into the lower bushing well tab, swing it into the plate slot (most vertical position), and secure with its wing nut. Hand-tighten both wing nuts securely.

  5. Install Electrostatic Grounding Wire

    Thread a No. 14 AWG (2.5mm²) copper wire through one of the grounding holes on the feed-thru insert. Form a small loop, twist tightly without damaging the conductive shield, and connect the free end to the system ground using a suitable connector. Ensure the grounding wire does not contact bushing interfaces or interfere with accessories.

  6. Prepare for Mating Products and Connect

    If immediately connecting, remove protective shipping caps from the feed-thru insert. Thoroughly clean and lubricate the bushing interfaces with the supplied ELASTIMOLD approved lubricant. Install mating products (e.g., elbow connectors, insulated caps) according to their specific instructions. If not immediately connecting, leave shipping caps on, but do not energize or submerge the apparatus with shipping caps.

  7. Verify Mating Product Seating

    Confirm proper seating of any installed insulated cap or elbow by ensuring no portion of the yellow band is visible when viewed from the side.

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