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ABB - Installation Products 274FLR3-B0220 - Molded Current Limiting Fuse Housing, Nominal Fuse Voltage Rating 17.2kV, Fuse Test Port - Two Capactive Test Ports, Large Housing, Cable Insulation Diameter 0.635 inch - 0.905 inch / 16-23mm, Aluminum Conductor size 2 AWG Stranded Compressed, 1 AWG Solid Compact

ABB Installation Products 274FLR3-B0220 Molded Current Limiting Fuse Housing, Nominal Fuse Voltage Rating 17.2kV, Fuse Test Port…

UPC: 783786481675


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

Overview

The ABB 274FLR3-B0220 molded current limiting fuse housing is a high-voltage protection component designed for nominal 17.2kV systems. This fuse housing accommodates cable insulation diameters from 0.635 inch to 0.905 inch (16-23mm) and supports both 2 AWG stranded compressed and 1 AWG solid compact aluminum conductors. The housing features two capacitive test ports for safe and efficient electrical testing without system disconnection. Current limiting fuse housings are critical in medium-voltage applications where fault current protection is required to prevent damage to downstream equipment. The molded construction provides environmental resistance and mechanical durability in industrial and utility installations. The large housing design allows for proper clearance and heat dissipation, ensuring reliable operation under fault conditions. This product is part of ABB’s Installation Products line, known for reliable electrical infrastructure components. The 274FLR3-B0220 is suitable for use in switchgear, transformers, and distribution systems where medium-voltage protection is mandated. The fuse housing’s design aligns with industry standards for current limiting fuse applications, providing a secure enclosure for fuse elements while allowing for operational testing via the integrated test ports.
  • Nominal fuse voltage rating: 17.2kV
  • Two capacitive test ports for safe electrical testing
  • Cable insulation diameter range: 0.635 inch - 0.905 inch (16-23mm)
  • Supports 2 AWG stranded compressed and 1 AWG solid compact aluminum conductors
  • Molded construction for environmental and mechanical durability

Specifications

Amperage Rating
200 A
Application
Protect Light Duty Underground Distribution Systems
Color
Black
Conductor Range
#2 STR/COMPR AWG , #1 SOL/COMPT AWG
Insulation
True
Length
21.12 in
Length
536.448 mm
Material
Aluminum
Material
EPDM-Rubber
Size
0.635-0.905 inch / 16-23mm (Cable Insulation Diameter), 2 AWG Stranded Compressed / 1 AWG Solid Compact (Conductor Size)
Special Features
Full-Range Current-Limiting Fusing with 50kA Interrupting Capability. Hotstick Operable 25/28kV Loadbreak Elbow Switching
Standard
IEEE 386, ANSI C37.40, ANSI C37.41, ANSI C37.47
Temperature Rating, Maximum
149 F
Temperature Rating, Maximum
65 C
Temperature Rating, Minimum
-40 F
Temperature Rating, Minimum
-40 C
Type
Loadbreak Fused Elbow Connector with Test Point
Voltage Rating
17.2 kV
Voltage Rating
15.5 to 16.2 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)
1.0000 L
Package Weight (Metric)
0.4540 kg
15-25kV 600 Series Deadbreak Separable Wye Joint Package (3-Way) with Test Point, Cable Insulation Diameter 0.980 inch to 1.180 inch. Aluminum Compression Lug. Conductor Size AWG Compressed Stranded #2 or Compacted Solid #1.

K656CY-J0220

15-25kV 600 Series Deadbreak Separable Wye Joint Package (3-Way) with Test Point, Cable Insulation Diameter 0.980 inch to 1.180 inch. Aluminum Compression Lug. Conductor Size AWG Compressed Stranded #2 or Compacted Solid #1.
Single cable clamp 150-300mm2 for power terminal type 5

45000034

Single cable clamp 150-300mm2 for power terminal type 5
Molded Current Limiting Fuse Housing, Nominal Fuse Voltage Rating 15.5kV, Fuse Test Port - Two Capactive Test Ports, Small Housing, Cable Insulation Diameter 0.575 inch - 0.740 inch / 15-19mm, Bi-Metal Conductor size 1/0 AWG Stranded Compressed, 2/0 AWG Solid Compact.

274FLR1A5240

Molded Current Limiting Fuse Housing, Nominal Fuse Voltage Rating 15.5kV, Fuse Test Port - Two Capactive Test Ports, Small Housing, Cable Insulation Diameter 0.575 inch - 0.740 inch / 15-19mm, Bi-Metal Conductor size 1/0 AWG Stranded Compressed, 2/0 AWG Solid Compact.
Molded Current Limiting Fuse Housing, Nominal Fuse Voltage Rating 15.5kV, Fuse Test Port - Two Capactive Test Ports, Small Housing, Cable Insulation Diameter 0.805 inch - 1.060 inch / 20-27mm, Aluminum Conductor size 2 AWG Stranded Compressed, 1 AWG Solid Compact

274FLR1-C0220

Molded Current Limiting Fuse Housing, Nominal Fuse Voltage Rating 15.5kV, Fuse Test Port - Two Capactive Test Ports, Small Housing, Cable Insulation Diameter 0.805 inch - 1.060 inch / 20-27mm, Aluminum Conductor size 2 AWG Stranded Compressed, 1 AWG Solid Compact
Molded Current Limiting Fuse Housing, Nominal Fuse Voltage Rating 15.5kV, Fuse Test Port - Two Capactive Test Ports, Small Housing, Cable Insulation Diameter 0.805 inch - 1.060 inch / 20-27mm, Aluminum Conductor size 1/0 AWG Stranded Compressed, 2/0 AWG Solid Compact

274FLR1-C0240

Molded Current Limiting Fuse Housing, Nominal Fuse Voltage Rating 15.5kV, Fuse Test Port - Two Capactive Test Ports, Small Housing, Cable Insulation Diameter 0.805 inch - 1.060 inch / 20-27mm, Aluminum Conductor size 1/0 AWG Stranded Compressed, 2/0 AWG Solid Compact
Molded Current Limiting Fuse Housing, Nominal Fuse Voltage Rating 15.5kV, Fuse Test Port - Two Capactive Test Ports, Small Housing, Cable Insulation Diameter 0.890 inch - 1.220 inch / 25-31mm, Aluminum Conductor size 4/0 AWG Stranded Compressed

274FLR1-D0270

Molded Current Limiting Fuse Housing, Nominal Fuse Voltage Rating 15.5kV, Fuse Test Port - Two Capactive Test Ports, Small Housing, Cable Insulation Diameter 0.890 inch - 1.220 inch / 25-31mm, Aluminum Conductor size 4/0 AWG Stranded Compressed
Molded Current Limiting Fuse Housing, Nominal Fuse Voltage Rating 15.5kV, Fuse Test Port - Two Capactive Test Ports, Small Housing, Aluminum Cable Insulation Diameter 0.575 inch - 0.740 inch / 15-19mm, Conductor size 2 AWG Stranded Compressed, 1 AWG Solid Compact

274FLR1-A0220

Molded Current Limiting Fuse Housing, Nominal Fuse Voltage Rating 15.5kV, Fuse Test Port - Two Capactive Test Ports, Small Housing, Aluminum Cable Insulation Diameter 0.575 inch - 0.740 inch / 15-19mm, Conductor size 2 AWG Stranded Compressed, 1 AWG Solid Compact
Molded Current Limiting Fuse Housing, Nominal Fuse Voltage Rating 15.5kV, Fuse Test Port - Two Capactive Test Ports, Small Housing, Cable Insulation Diameter 0.805 inch - 1.060 inch / 20-27mm, Bi-Metal Conductor size 1/0 AWG Stranded Compressed, 2/0 AWG Solid Compact.

274FLR1-C5240

Molded Current Limiting Fuse Housing, Nominal Fuse Voltage Rating 15.5kV, Fuse Test Port - Two Capactive Test Ports, Small Housing, Cable Insulation Diameter 0.805 inch - 1.060 inch / 20-27mm, Bi-Metal Conductor size 1/0 AWG Stranded Compressed, 2/0 AWG Solid Compact.

Frequently Asked Questions

What is the nominal fuse voltage?

The nominal fuse voltage for the 25/28kV voltage class is 16.2kV (Phase to Ground).

How do I select the correct housing size?

The housing size is selected based on the desired fuse. Size 1 is for 3-45A 8.3kV and 6-20A 15.5kV fuses, while Size 3 is for 65-80A 8.3kV and 3-45A 17.2kV fuses.

What is the frequency rating of the product?

The product is rated for a frequency of 50/60 Hz.

What is the DC 15-minute withstand voltage?

The DC 15-minute withstand voltage rating for this product is 84kV DC.

What is the AC one-minute withstand voltage?

The AC one-minute withstand voltage rating for this product is 40kV AC.

What is the cable insulation diameter range for W code 'A'?

For W code 'A', the cable insulation diameter ranges from 0.575 in to 0.740 in (14.61 mm to 18.80 mm).

What is the recommended sealing and grounding kit for safety?

A sealing and grounding kit is highly recommended for safety purposes. Options include 200ECS for jacketed concentric neutral cables and 200ECS-G3 for copper tape shield cables.

What items are included in the kit?

Each kit contains an elbow connector housing, a crimp connector, a probe lug, lubricant tubes, installation instructions, a crimp chart, and a V.D Cap-Peroxide.

Is the fuse included with the elbow connector?

No, the fuse is ordered separately and is not included with the elbow connector kit.

What standards does this product meet?

The product meets IEEE 386, ANSI C37.40, ANSI C37.41, and ANSI C37.47 standards.

How to Install the 168FLR/274FLR Loadbreak Fused Elbow Connector

Complete installation guide for the 168FLR or 274FLR Loadbreak Fused Elbow Connector, designed to provide an in-line full-range current limiting fuse while terminating UD cable with concentric neutral and extruded insulation shielding.

Estimated time: 2h

Tools needed:

Probe Wrench, Allen Wrench (torque limiting, supplied), Wire brush, Crimp tool, Wire strippers, Cable cutting tool, Hotstick

Supplies needed:

Cable Half Housing, Elbow Half Housing, Fuse, Compression Lug, Probe, Probe Connector, Hose Clamp, Lubricant (supplied), Optional 200ECS Cold Shrink Cable Seal, No. 14 AWG / 2.5mm copper wire, Grounding connector

  1. Prepare Cable for Training

    DANGER: De-energize all apparatus before beginning installation to prevent serious or fatal injury. Using the bushing centerline as reference, cut excess cable off 20 inches minimum beyond the bushing. Slide the optional 200ECS Cold Shrink Cable Seal onto the cable, if used. Remove the jacket from the excess cable length and a distance of 'A' + 7-3/8 inches from the bushing centerline. If a Cable Seal kit is used, follow its instructions. Otherwise, unwrap and fold the concentric neutral wires back over the jacket and bind them. Using the bushing centerline as reference, squarely cut off the cable a distance of 'A', leaving 7-3/8 inches minimum of cable to terminate. Note: 'A' = 11-1/2 inches for FLR-1, 15-3/4 inches for FLR-3.

  2. Prepare Cable End and Install Lug

    Cut 1-1/8 inches from the cable end, ensuring a square cut and taking care not to nick the conductor. Wire brush bare aluminum conductors and immediately install the compression lug. Rotate the lug to spread inhibitor. Crimp the unthreaded end of the compression lug to the conductor, referring to the crimp chart for tool information. Start crimp at the crimp line mark and rotate 180 degrees for each successive crimp. Carefully wipe excess inhibitor from the outside of the lug and cable. Remove the insulation shield 5-1/2 inches from the end of the lug. Bevel the insulation end 1/8 inch maximum. Thoroughly clean the insulation to remove all traces of conductive residue.

  3. Lubricate and Insert Cable Half

    Apply the supplied lubricant to the outside of the connector, cable insulation, conductive shield, and the cable half of the Fused Elbow cable entrance end. DO NOT SUBSTITUTE lubricant. Insert the connector and cable into the cable half of the Fused Elbow until the top end of the connector protrudes beyond surface 'A'. This allows the fuse to be tightened before bottoming on the rubber.

  4. Install the Fuse

    Insert the threaded terminal end of the fuse into the cable half of the Fused Elbow and hand tighten it into the cable connector. CAUTION: The fuse stud will fracture if over torqued. Pull the housing up against the bottom of the tightened fuse.

  5. Assemble Probe Connector

    Assemble the probe connector to the fuse terminal. Rotate the probe connector so that the flats are perpendicular to the bushing with which it will mate. Lock the probe connector in position and tighten the setscrews using the special torque limiting allen wrench supplied in the fuse kit. Rotate the cable half of the Fused Elbow so that the test point is perpendicular to the flats on the probe connector.

  6. Assemble Elbow Half

    Apply lubricant to the elbow half of the fused elbow and assemble it to the cable half. The cuff of the cable half will overlap the elbow half by 3/4 inch. Ensure the probe connector faces the opening of the fused elbow half and the two test points are in line with each other. Insert the probe into the probe connector. Push on the cable if necessary to align the probe with the fuse. Start the threads by hand, taking care not to cross-thread. To tighten, use the special torque limiting allen wrench supplied; insert the short end into the hole in the probe and tighten until the wrench bends and remains bent. Position the hose clamp as shown in the diagram and tighten it. DO NOT OVERTIGHTEN.

  7. Connect Concentric Neutral

    Using a separate copper wire (No. 14 AWG / 2.5mm or equivalent), insert one end through each grounding eye on the elbow housing and cable housings. Twist tightly, taking care not to damage the eye. Finish installing the 200ECS jacket seal if used. Twist all neutral wires, exercising care not to damage grounding eyes, and connect to ground using an appropriate connector. Provide adequate slack in the wires for elbow operation.

  8. Connect Elbow to Bushing Plug

    Lubricate the receptacle portion of the elbow connector and the mating bushing with the supplied lubricant. LUBRICATE ONLY IF THE TRANSFORMER AND ELBOW ARE KNOWN TO BE DE-ENERGIZED. Operate the connection using a full insulated 'hotstick' type tool as per operating instructions. DO NOT OPERATE BY HAND.

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.

What accessories are available for Thomas and Betts products?

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.

What communication protocols do Thomas and Betts products support?

Thomas and Betts products support a wide range of industrial communication protocols, including Ethernet, DeviceNet, PROFIBUS, Modbus, CANopen, and others. This extensive compatibility ensures seamless integration and reliable communication across various industrial automation systems, catering to diverse application needs.

What are the key features of Thomas and Betts products?

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.

What are the main product lines offered by Thomas and Betts?

Thomas and Betts offers a comprehensive range of product lines including electrical connectors, cable management systems, grounding and bonding solutions, and industrial automation components. Their products are designed for durability and reliability in demanding industrial environments, ensuring optimal performance and safety across various applications.

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Thomas and Betts offers comprehensive technical support, including access to field application engineers for onsite training and installation assistance. Their technical support staff is available to address inquiries related to product specifications and installation practices, ensuring optimal performance and safety of electrical systems. Additionally, they provide a variety of training programs to enhance the knowledge and skills of users in the field.

What industries and applications are Thomas and Betts products used for?

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What certifications and standards do Thomas and Betts products comply with?

Thomas and Betts products comply with critical international certifications including UL (Underwriters Laboratories), CSA (Canadian Standards Association), and CE (European Community). Our products are designed to meet rigorous industrial standards such as NEMA enclosure ratings and IEC 60529 IP ratings, ensuring safety and reliability across various industrial applications.

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.