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Overview
- 600 Amp, 35kV rating for medium-voltage applications
- Complete kit with insulated plug, cap, stud, lug, and cable adapter
- Accommodates cable insulation diameters from 1.370" to 1.630"
- Aluminum compression lug for 3/0 AWG to 4/0 kcmil stranded conductors
- ABB - Installation Products manufacturer, SKU 755LR-M0260
Specifications
Amperage Rating | 600 A |
Application | Designed to provide Fully Shielded, Dead-Front Submersible Cable Connections to High-Voltage Apparatus |
Color | Black |
Conductor Range | 3/0 STR/COMPR AWG , 4/0 SOL/COMPT AWG |
Environmental Conditions | Fully Submersible |
Insulation | True |
Material | Housing - EPDM-Rubber |
Size | Cable Insulation Diameter 1.370 inch to 1.630 inch |
Special Features | 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. Optional Accessories allow Visible External Separation, By-Pass, Isolation, Dead-Ending, Grounding, and Testing as well as Adding Taps, Surge Arrestors, and Fault Current Indicators |
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 |
Voltage Rating | 35 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) | 8.2500 L |
Package Weight (Metric) | 3.7420 kg |
376LR-J-5260
200 Amp, 35kV, Loadbreak Elbow Connector with Test Point, Cable Insulation Diameter 0.980 inch to 1.180 inch. Bi-Metal Compression Lug, Conductor Size AWG Compressed Stranded 3/0 /Solid 4/0 /mmSquared 85.01.
755LR-L0330
600 Amp, 35kV, 600 Series Deadbreak Elbow (with Insulated Plug, Cap, Stud, Lug and Cable Adapter). Cable Insulation Diameter 1.180 inch to 1.465 inch. Aluminum Compression Lug. Conductor Size AWG or kcmil, Compressed Stranded 500 /Compacted Solid 600 /mmSquared Compact 250/300.755LR-L0300
600 Amp, 35kV, 600 Series Deadbreak Elbow (with Insulated Plug, Cap, Stud, Lug and Cable Adapter). Cable Insulation Diameter 1.180 inch to 1.465 inch. Aluminum Compression Lug. Conductor Size AWG or kcmil, Compressed Stranded 350 /Compacted Solid 400 /mmSquared Compact 185.755LR-L0270
600 Amp, 35kV, 600 Series Deadbreak Elbow (with Insulated Plug, Cap, Stud, Lug and Cable Adapter). Cable Insulation Diameter 1.180 inch to 1.465 inch. Aluminum Compression Lug. Conductor Size AWG or kcmil, Compressed Stranded 4/0 /Compacted Solid 250 /mmSquared Compact 125.755LR-K0330-S
600 Amp, 35kV, 600 Series Deadbreak Elbow (with Insulated Plug, Cap, Stud, Lug and Cable Adapter). Cable Insulation Diameter 1.090 inch to 1.310 inch. Aluminum Compression Lug. Conductor Size AWG or kcmil, Compressed Stranded 500 /Compacted Solid 600 /mmSquared Compact 250/300. 200ECS Cold-Shrinkable Jacket Seal Included.755LR-K0350-S
600 Amp, 35kV, 600 Series Deadbreak Elbow (with Insulated Plug, Cap, Stud, Lug and Cable Adapter). Cable Insulation Diameter 1.090 inch to 1.310 inch. Aluminum Compression Lug. Conductor Size AWG or kcmil, Compressed Stranded 600 /Compacted Solid 600. 200ECS Cold-Shrinkable Jacket Seal Included.755LR-L0260
600 Amp, 35kV, 600 Series Deadbreak Elbow (with Insulated Plug, Cap, Stud, Lug and Cable Adapter). Cable Insulation Diameter 1.180 inch to 1.465 inch. Aluminum Compression Lug. Conductor Size AWG or kcmil, Compressed Stranded 3/0 /Compacted Solid 4/0 /mmSquared Compact 95.Frequently Asked Questions
What is the maximum operating voltage for the 755LR?
The 755LR is designed for a 35kV voltage class, with a maximum phase-to-ground operating voltage of 21.1kV.
What standard does the 755LR meet?
The 755LR meets ANSI/IEEE Standard 386, Latest Revision.
What is the AC one-minute withstand voltage?
The AC one-minute withstand voltage for the 755LR is 50kV.
What is the maximum phase-to-phase voltage rating?
The maximum phase-to-phase voltage rating for the 755LR is 36.6kV.
What is included in a 755LR kit?
Each kit contains an elbow connector housing, copper compression lug, stud, insulated plug with cap, lubricant tubes, cable adapter, and installation instructions.
What is the impulse withstand rating of the 755LR?
The 755LR has a 150kV BIL Impulse Withstand rating (1.2 x 50 microsecond wave).
Is the 755LR suitable for submersible applications?
Yes, the 755LR features a fully shielded, fully submersible molded rubber housing.
What insulation diameter range does the 755LR support?
The 755LR supports insulation diameters from 0.760 inches to 2.120 inches.
What is the continuous current rating of the 755LR?
The 755LR has a continuous current rating of 600 Amps.
What conductor sizes are compatible with the 755LR?
The 755LR is compatible with aluminum and copper conductors ranging from #2 AWG to 1250 kcmil.
How to Install 755/775LR Deadbreak Elbow Connectors
This guide provides step-by-step instructions for the safe installation and connection of 755LR and 775LR Deadbreak Elbow Connectors on 35kV class systems, including cable preparation, lug crimping, and grounding procedures. Ensure all apparatus are de-energized before beginning installation.
Estimated time: 1h 30m
Tools needed:
Wire strippers, Crimping tool, Wire brush (for aluminum conductors), Hotstick, Suitable voltage sensing device (for capacitive test points), Torque wrench (for mating parts and L-Kits)
Supplies needed:
755/775LR Deadbreak Elbow Connector Kit (includes Elbow, Cable Adapter, Compression Lug, Insulating Plug, Lubricant, Stud Prepack), High voltage cable (35kV class), Grounding wire (minimum #14 AWG Copper ampacity), Suitable grounding connector, Waterproofing material (for cable jacket, recommended), Tape marker
- Perform Initial Checks and Ensure Safety
DANGER: All apparatus must be de-energized during installation or removal. Do not touch or move energized products. This product must be installed only by competent personnel trained in good safety practices involving high voltage electrical equipment. Check the contents of the package to ensure they are complete and undamaged. Verify all components for proper fit with the cable and/or mating products. Read all instructions thoroughly before starting.
- Position Cable and Make Initial Cut
Position the cable in its final assembled location, ensuring enough slack to allow adequate clearance for removing the elbows. If using concentric neutral cable, unwind the concentric neutral wires. Cut the cable 1-3/4 inches (45mm) from the centerline of the mating product.
- Clean the Cable Outer Jacket
Clean the outer jacket of the cable for a distance of 24 inches (610mm) from the cut end to ensure a clean working surface.
- Prepare Cable Insulation and Shield
Follow the specific cable preparation instructions based on your cable type (e.g., UNISHIELD, Lead Sheath, Jacketed, Non-Jacketed, Flat Metallic Tape Shield, Fabric Tape Shield, Longitudinally Corrugated Shield). This involves removing the outer jacket (if applicable) and preparing the cable insulation and semi-con shield to the specified dimensions (e.g., 10-3/8 inches, 11-3/8 inches, 13-5/8 inches from the end, and flush with a tape marker).
- Install the Cable Adapter
Bevel the end of the cable insulation at a 45-degree angle, approximately 1/4 inch (6mm) back. Thoroughly clean and then lubricate the cable insulation, always working toward the semi-con shield. Install the cable adapter, small end first, until it is flush with the edge of the tape marker.
- Trim Protruding Cable Insulation
Remove any cable insulation protruding beyond the cable adapter by cutting it even with the end of the cable adapter. Be careful not to cut or nick the cable adapter or the conductor. The exposed conductor length must be between 4-3/8 inches to 4-3/4 inches (111mm-121mm); otherwise, redo the assembly.
- Crimp the Compression Lug
For copper conductors, fully insert the conductor into the compression lug. For aluminum conductors, wire brush the conductor immediately before fully inserting it into the compression lug. Measure the 'Check Dimension' before crimping, ensuring it is less than 7 inches (178mm). Crimp the compression lug according to the instructions supplied with the lug. Wipe all excess inhibitor from the compression lug and cable adapter surface after crimping. The distance from the end of the compression lug to the cable adapter after crimping must be between 6-7/8 inches to 7-5/8 inches (175mm-194mm); otherwise, redo the assembly.
- Install the Elbow onto the Cable Adapter
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. Verify that the cable adapter remains flush with the tape marker; reposition the cable adapter if necessary. Remove the tape marker.
- Prepare Mating Products for Connection
WARNING: DO NOT CONNECT OR DISCONNECT MATING PRODUCTS WHILE ENERGIZED. DO NOT ENERGIZE WHILE DISCONNECTED. Remove any protective caps from both the elbow and the mating part. If the mating part is not equipped with a stud, hand tighten the threaded stud supplied with the elbow into the mating part. Clean and lubricate both the elbow and the mating part with the supplied lubricant, ensuring surfaces remain clean.
- Connect the Elbow to the Mating Part
Push the elbow firmly onto the mating part, carefully lining up the hole in the compression lug with the stud on the mating part until fully seated.
- Complete Opposite End Connection (if applicable)
If connecting to another mating part on the opposite end of the elbow, clean and lubricate its mating surface. Insert this mating part into the elbow, engage the threads, and hand tighten. Torque the mating part according to the instructions supplied with that specific mating part.
- Install Insulating Plug (if used)
If an insulating plug is used as a mating part, clean and lubricate the inner surface of the voltage detection cap. Place the cap on the elbow and push down hard until it snaps securely into place.
- Ground the Cable Shield
Insert one end of a piece of wire, with an ampacity at least equivalent to No. 14 AWG Copper, through the grounding eye and twist to make a small loop without damaging the eye. Connect this wire to ground using a suitable connector. The shield of the cable must be grounded; ground it according to the instructions supplied with any grounding device used, or via an alternate method if no device is present. It is also recommended to waterproof the cable jacket at this point to prevent moisture ingress.
- Perform Voltage Test (Post-Installation)
CAUTION: When constructing 600amp L-Kits, ensure each component is tightened to the specified torque per the plug connector instructions. The ELASTIMOLD deadbreak elbow connector features an integral capacitance test point. To use it: 1. Remove the test point cap with a hotstick, peeling it off at an angle. 2. WARNING: The voltage test point is a capacitance device, not directly connected to the conductor. Do not use conventional voltage measuring equipment. Follow the manufacturer’s directions for the specific meter used. Test with a suitable sensing device designed for capacitive test points to determine if the cable is energized. Contamination, moisture, dirt, or incorrect equipment can cause a false 'no voltage' indication. Treat the elbow as energized until 'no voltage' is confirmed by other means to prevent serious or fatal injury. 3. After testing, clean and lubricate the inside surface of the cap with silicone lubricant and replace it on the test point.
Frequently Asked Questions about ABB - Installation Products
How are Thomas and Betts products typically installed?
Thomas and Betts products are installed using a variety of methods tailored to specific applications, including the use of flexible cords and cable fittings, non-metallic cable glands, and armored cable fittings. Proper selection of fittings is crucial to match the cable type and installation environment, ensuring durability and preventing physical damage. Tools such as the Blackburn® Comfort Crimp® and HEX-FLEX® systems enhance installation efficiency and reliability, reducing labor time and ensuring secure connections.
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Thomas and Betts offers a comprehensive range of accessories for their products, including various cord and cable fittings, non-metallic cable glands, service entrance cable fittings, and armored cable fittings. Their accessories are designed to enhance installation efficiency and ensure compatibility with different cable types and environmental conditions, providing reliable connections for a wide array of applications.
What environmental ratings do Thomas and Betts products have?
Thomas and Betts products feature robust environmental ratings, including NEMA Type 1, 2, 3, 4, 4X, 12, and 13 certifications, as well as IEC 60529 IP66 protection. These ratings ensure that their products are designed to withstand harsh industrial environments, with capabilities to resist dust, water, and corrosion, and operate effectively in a wide temperature range.
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Thomas and Betts products are known for their innovative designs, high performance, and compliance with industry standards such as the National Electrical Code and Underwriters' Laboratories. They offer a comprehensive range of rugged and reliable electrical fittings, including liquidtight and dust-tight connections, which enhance installation efficiency and reduce overall project costs. Their products are engineered for durability in harsh environments, ensuring long-term reliability and lower installed costs.
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What are the main product lines offered by Ocal?
Ocal offers a comprehensive range of corrosion-resistant conduit systems, including PVC-coated conduit and fittings, conduit bodies, hazardous location fittings, and strut accessories. Their products are designed to provide superior corrosion protection, featuring a hot-dipped galvanizing process and UL listed Type 4X PVC-coated conduit bodies, ensuring durability in the most demanding environments.