ABB - Installation Products FSS-20-HM - Flood Seal Insulating Cover, FSS Series, Aluminum and Copper Conductor Range #14 to 2/0 AWG, Cable Insulation Diameter Range .150 to .600 inch. Length 2-1/4 inch. Includes Rocket, Cap, Instruction Sheet and Silicone Grease. Black Santoprene Rubber
ABB - Installation Products

FSS-20-HM

UPC: 075114423458


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Overview

The ABB FSS-20-HM Flood Seal Insulating Cover (SKU: FSS-20-HM) is a pre-formed, submersible insulating sleeve engineered for aluminum and copper conductors ranging from #14 to 2/0 AWG. Designed for low-voltage applications, this cover accommodates cable insulation diameters from 0.150 to 0.600 inch and measures 2.25 inches in length. The black Santoprene rubber construction delivers exceptional resistance to moisture, ozone, and UV exposure, ensuring long-term insulation integrity in harsh environments. The FSS-20-HM eliminates the need for traditional taping, reducing labor and material costs associated with splice preparation. Its watertight design maintains full insulating value indefinitely in direct buried, underground network, and overhead splice joints. The included silicone grease enhances sealing performance, preventing water ingress and corrosion at connection points. The kit includes a rocket, cap, instruction sheet, and silicone grease for immediate installation. Ideal for outdoor electrical enclosures, junction boxes, and cable terminations, this insulating cover meets critical industry standards for electrical insulation. Its one-size-fits-all design simplifies inventory management while providing reliable protection for splices in both indoor and outdoor applications. The FSS-20-HM is part of ABB’s Flood Seal Series, a trusted solution for protecting electrical connections in demanding environments where moisture resistance and insulation integrity are paramount.
  • Pre-formed Santoprene rubber sleeve for #14 to 2/0 AWG conductors
  • Accommodates cable insulation diameters from 0.150 to 0.600 inch
  • 2.25-inch length with included silicone grease for watertight sealing
  • Eliminates taping; reduces labor and material costs for splice preparation
  • Maintains watertight integrity indefinitely in buried, underground, and overhead applications

Specifications

Application
Watertight Splice Applications. Rated 600 Volts - built for Heavy-Duty Loads
Color
Black
Conductor Range
#14 to 2/0 AWG
Length
2-1/4 in
Material
Santoprene Rubber
Series
FSS
Size
2-1/4 inch
Special Features
Sizes for most conductors, perfrect for Copper or Aluminum Conductors ranging from #14 AWG to 1500 kcmil. Easy to Install. Waterproof. Eliminate taping to significantly reduce labor and material cost of splice preparation
Standard
RUS Accepted
Type
Insulating Cover - End Caps
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)
0.0550 L
Package Weight (Metric)
0.0250 kg
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Frequently Asked Questions

What conductor sizes does the FSS-20-HM support?

The FSS-20-HM supports aluminum and copper conductors ranging from #14 to 2/0 AWG.

What is the cable insulation diameter range for this cover?

The cover accommodates cable insulation diameters from 0.150 to 0.600 inch.

What is included in the FSS-20-HM kit?

The kit includes a rocket, cap, instruction sheet, and silicone grease for immediate installation.

How long is the FSS-20-HM cover?

The FSS-20-HM cover measures 2.25 inches in length.

What material is the FSS-20-HM made from?

The cover is constructed from black Santoprene rubber with included silicone grease.

Does the FSS-20-HM require taping for installation?

No, the FSS-20-HM eliminates the need for traditional taping, reducing labor and material costs.

What environments is the FSS-20-HM suitable for?

The cover is designed for direct buried, underground network, and overhead splice joints in harsh environments.

How to Install the Flood Seal Submersible Splice Cover FSS 20 & FSS 20L

This guide provides step-by-step instructions for installing the Flood Seal Submersible Splice Cover, ensuring a watertight and insulated connection for low voltage cables. WARNING: Installation must be performed by trained installers in accordance with all applicable electrical codes and safety rules.

Estimated time: 20m

Tools needed:

Utility knife, Cable cutter, Insulation stripping tool

Supplies needed:

Silicone grease, Silicone sealant, Electrical connector, Flood Seal Submersible Splice Cover FSS 20/20L, Low voltage cable

  1. Select Correct Cut-Off Ring

    Identify and select the correct cut-off ring on the rocket sleeve and cap that corresponds to the specific cable size being used for the splice.

  2. Prepare Rocket Sleeve and Cap

    Cut off the rocket sleeve and cap at the tip of the arrow, ensuring that only the correct cable size marking is visible on the opened rocket and cap sections.

  3. Bevel Cable Insulation

    Bevel or pencil the cable insulation by approximately 1/4 inch (6mm) to facilitate easier installation and seating of the splice cover components.

  4. Apply Silicone Grease

    Apply a generous amount of silicone grease to the prepared cable insulation where the splice cover will be seated. This aids in installation and sealing.

  5. Slide Rocket and Cap Over Cable

    Carefully slide the cut rocket sleeve and cap over the prepared cable, positioning them appropriately for the splice connection.

  6. Install Electrical Connector

    Install the appropriate electrical connector onto the prepared cable ends, ensuring a secure and proper electrical connection.

  7. Seal Housing

    Apply silicone sealant to the open edge of the rocket sleeve. Then, slide the two halves of the Flood Seal Housing together, centering the housing precisely over the installed electrical connection to create a watertight seal.

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