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ABB - Installation Products 756LR-R0440 - 35kV 600 Series Deadbreak Elbow with Test Point (with Insulated Plug, Cap, Stud, Lug and Cable Adapter). Aluminum Compression Lug. Cable Insulation Diameter 2.115 inch to 2.235 inch. Conductor Size kcmil Compressed Stranded 1250 kcmil.

ABB Installation Products 756LR-R0440 35kV 600 Series Deadbreak Elbow with Test Point (with Insulated Plug, Cap, Stud, Lug and…

UPC: 075114359580


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Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The ABB 756LR-R0440 is a 35kV, 600 Amp deadbreak elbow connector designed for fully shielded, submersible cable connections to high-voltage apparatus. This Elastimold® connector meets ANSI/IEEE Standard 386, offering a 21.1kV maximum phase-to-ground operating voltage and 36.6kV maximum phase-to-phase voltage. It features a 150kV BIL impulse withstand (1.2 x 50 microsecond wave), 50kV AC one-minute withstand, and 103kV DC 15-minute withstand. The corona extinction voltage is rated at 26kV AC at 3pC sensitivity. The continuous current rating is 600 Amps, with a 25kA symmetrical momentary fault current rating for 10 cycles. The 756LR-R0440 is constructed with 100% peroxide-cured EPDM molded rubber for insulation and conductive properties, ensuring a fully shielded and submersible design. It supports conductor sizes from #2 AWG to 1250 kcmil for both aluminum and copper conductors, with cable insulation diameters ranging from 0.760 inches to 2.120 inches. This specific model accommodates cable insulation diameters from 2.115 inches to 2.235 inches and conductor sizes up to 1250 kcmil compressed stranded aluminum. The kit includes the elbow connector housing (756BLR), a copper compression lug, a stud (750SA), an insulated plug with cap (750BIP), lubricant tubes, a cable adapter (755CA-W), and installation instructions. When used on metallic tape shield or drain wire cable, an ECS cable seal grounding device is recommended. The deadbreak design allows for connection and disconnection using standard hand tools and equipment in a de-energized state. Optional accessories are available for visible external separation, by-pass, isolation, dead-ending, grounding, and testing, as well as adding taps, surge arrestors, and fault current indicators. Manufacturer: ABB. SKU: 756LR-R0440.
  • Fully rated 35kV, 600 Amp Deadbreak Elbow Connector
  • Fully shielded, fully submersible molded rubber housing
  • 100% peroxide-cured EPDM construction
  • Supports conductor sizes up to 1250 kcmil (compressed stranded)
  • Cable insulation diameter range: 2.115" to 2.235"
  • Meets ANSI/IEEE Standard 386 with 150kV BIL rating
  • Includes insulated plug, cap, stud, aluminum compression lug, and cable adapter
  • Compatible with metallic tape shield or drain wire cables (ECS grounding recommended)

Specifications

Amperage Rating
600 A
Application
35 kv, 600 Amp
Color
Black
Conductor Range
1250 COMPR/STR kcmil
Connection
Compression
Connection Type
Compression
Environmental Conditions
Fully Submersible
Insulation
True
Material
Aluminum
Material
Housing - EPDM-Rubber
Series
600 Series
Size
2.115 inch to 2.235 inch
Special Features
35kV, 600 Amp Loadbreak Elbow. Fully shielded, fully submersible molded rubber housing. 100 percent peroxide-cured construction includes insulation and conductive EPDM materials. Can be easily connected or disconnected using standard hand tools and equipment in a de-energized state
Standard
ANSI/IEEE Standard 386
Temperature Rating, Maximum
149 F
Temperature Rating, Maximum
65 C
Temperature Rating, Minimum
-40 F
Temperature Rating, Minimum
-40 C
Type
Deadbreak Elbow Connector with Test Point
Voltage Rating
35 kV
Width
12.28 in
Width
311.912 mm
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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Frequently Asked Questions

What is the maximum conductor size for this deadbreak elbow?

This deadbreak elbow is designed for compressed stranded conductors up to 1250 kcmil.

What is the cable insulation diameter range for the 756LR-R0440?

The cable insulation diameter range for this ABB deadbreak elbow is 2.115 inches to 2.235 inches.

Does the 756LR-R0440 include a test point?

Yes, the ABB 756LR-R0440 35kV 600 Series Deadbreak Elbow is equipped with a test point for diagnostic purposes.

What type of lug is included with this deadbreak elbow?

This deadbreak elbow comes with an aluminum compression lug.

What is the voltage rating of the ABB 756LR-R0440?

The ABB 756LR-R0440 is rated for 35kV.

How to Install 756LR Deadbreak Elbow Connectors

This guide provides step-by-step instructions for the safe and proper installation of 756LR Deadbreak Elbow Connectors, designed for fully shielded, submersible cable connections to high voltage apparatus on 35kV class systems.

Estimated time: 1h 30m

Tools needed:

Crimping tool, Wire brush (for aluminum conductors), Hotstick, Suitable voltage sensing device, Wire strippers

Supplies needed:

756LR Elbow connector, Cable Adapter, Compression Lug, Insulating Plug (if applicable), Lubricant, Threaded Stud (if not on mating part), Grounding wire (min. No. 14 AWG Copper), Suitable grounding connector, Silicone lubricant (for test point cap)

  1. Prepare for Installation and Safety Checks

    De-energize all apparatus in the work area. Inspect all parts for damage, proper rating, and compatibility with mating parts and cable. Ensure all required tools and supplies are at hand, and maintain cleanliness throughout the procedure.

  2. Position and Prepare Cable

    Position the cable in its final assembled position with enough slack for elbow removal. Cut the cable 1-3/4” (45mm) from the centerline of the mating product. Clean the outer jacket of the cable for a distance of 24” (610mm). Prepare the cable according to its specific type (e.g., UNISHIELD, JACKETED, NON-JACKETED) by removing the outer jacket and preparing the insulation and semi-con shield to the specified dimensions.

  3. Install Cable Adapter and Prepare Conductor

    Bevel the end of the cable insulation at a 45-degree angle, approximately 1/4” (6mm) back. Thoroughly clean and lubricate the cable insulation, working toward the semi-con shield. Install the cable adapter, small end first, until it is flush with the edge of the tape marker. Remove the protruding cable insulation by cutting it even with the end of the cable adapter, ensuring the exposed conductor length is between 4-3/8” to 4-3/4” (111mm-121mm).

  4. Crimp Compression Lug

    For copper conductors, fully insert the conductor into the compression lug. For aluminum conductors, wire brush the conductor and immediately fully insert it. Measure the "Check Dimension" (must be less than 7” (178mm)) before crimping. Crimp the compression lug following its supplied instructions. Wipe all excess inhibitor from the lug and cable adapter. Verify the distance from the end of the lug to the cable adapter is between 6-7/8” to 7-5/8” (175mm-194mm).

  5. Install Elbow and Prepare Mating Parts

    Lubricate the cable adapter and the inside of the elbow's cable entrance. Install the elbow onto the cable adapter until it cannot advance further, ensuring the cable adapter remains flush with the tape marker. Remove the tape marker. DANGER: DO NOT CONNECT OR DISCONNECT MATING PRODUCTS WHILE ENERGIZED. DO NOT ENERGIZE WHILE DISCONNECTED. Remove protective caps from the elbow and the mating part. Hand tighten the threaded stud (if needed) into the mating part. Clean and lubricate both the elbow and the mating part.

  6. Connect Elbow to Mating Parts

    Push the elbow onto the first mating part, aligning the compression lug hole with the stud. If connecting a second mating part to the opposite end of the elbow, clean and lubricate it, then insert it into the elbow, engage threads, hand tighten, and torque according to its instructions.

  7. Install Insulating Plug and Ground Cable Shield

    If an insulating plug is used, clean and lubricate the inner surface of the voltage detection cap and place it on the elbow, pushing until it snaps into place. Insert one end of a grounding wire (min. No. 14 AWG Copper) through the grounding eye and twist to form a loop. Connect this wire to ground using a suitable connector. Ground the cable shield according to instructions or an alternate method. Waterproof the cable jacket to prevent moisture.

  8. Perform Voltage Test (Optional but Recommended)

    CAUTION: For 600amp L-Kits, tighten components to specified torque. To test for voltage, remove the test point cap with a hotstick, peeling it off at an angle. WARNING: The voltage test point is a capacitance device; do not use conventional voltage measuring equipment. Use a suitable sensing device designed for capacitive test points. Treat the elbow as energized until a "no voltage" indication is confirmed by other means. After testing, clean and lubricate the inside of the cap with silicone lubricant and replace it.

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