Authorized ABB Distributor (Installation Products)
ABB - Installation Products 274FLR3-C0230 - Molded Current Limiting Fuse Housing, Nominal Fuse Voltage Rating 17.2kV, Fuse Test Port - Two Capactive Test Ports, Large Housing, Cable Insulation Diameter 0.805 inch - 1.060 inch / 20-27mm, Aluminum Conductor size 1 AWG Stranded Compressed, 1/0 AWG Solid Compact

ABB Installation Products 274FLR3-C0230 Molded Current Limiting Fuse Housing, Nominal Fuse Voltage Rating 17.2kV, Fuse Test Port…

UPC: 783786492695


Documents & Media
Installation InstructionsSpecification SheetManufacturer Product Website

Contact for Pricing

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

Overview

The ABB 274FLR3-C0230 molded current-limiting fuse housing is a medium-voltage protective device designed for systems requiring precise fault isolation and high reliability. Rated for a nominal fuse voltage of 17.2kV, this housing accommodates cable insulation diameters from 0.805 to 1.060 inches (20-27mm), supporting aluminum conductors including 1 AWG stranded compressed and 1/0 AWG solid compact configurations. The large housing design provides ample clearance for high-performance fuse elements while maintaining a compact installation footprint, ideal for space-constrained environments. Dual capacitive test ports enable safe, non-intrusive verification of fuse status without system de-energization, significantly reducing maintenance downtime. The housing is compatible with standard current-limiting fuse classes, making it suitable for critical applications such as distribution transformers, switchgear, and industrial power systems where fault isolation and operational continuity are essential. Constructed from corrosion-resistant aluminum, the 274FLR3-C0230 ensures long-term durability in harsh industrial and outdoor environments. The bottom wire entry configuration simplifies installation and cable management, while the robust design supports high interrupting current ratings up to 100kAIC. This fuse housing is a proven solution for medium-voltage systems requiring reliable overcurrent protection and operational safety.
  • Rated for 17.2kV nominal fuse voltage with 100kAIC interrupting rating
  • Accommodates cable insulation diameters from 0.805 to 1.060 inches (20-27mm)
  • Supports aluminum conductors: 1 AWG stranded compressed and 1/0 AWG solid compact
  • Dual capacitive test ports enable non-intrusive fuse status verification
  • Bottom wire entry configuration for simplified installation and cable management

Specifications

Amperage Rating
200 A
Application
Protect Light Duty Underground Distribution Systems
Color
Black
Conductor Range
#1 STR/COMPR AWG , 1/0 SOL/COMPT AWG
Insulation
True
Length
21.12 in
Length
536.448 mm
Material
Aluminum
Material
EPDM-Rubber
Series
274FLR3
Size
Cable Insulation Diameter 0.805 inch - 1.060 inch / 20-27mm
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
15.5 to 16.2 kV
Voltage Rating
17.2 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
600 Amp, 35kV, 600 Series Deadbreak Elbow (with Insulated Plug, Cap, Stud, Lug and Cable Adapter). Cable Insulation Diameter 0.850 inch to 1.050 inch. Aluminum Compression Lug. Conductor Size AWG or kcmil, Compressed Stranded #1/ Compacted Solid 1/0 /mmSquared Compact 50.

755LR-H0230

600 Amp, 35kV, 600 Series Deadbreak Elbow (with Insulated Plug, Cap, Stud, Lug and Cable Adapter). Cable Insulation Diameter 0.850 inch to 1.050 inch. Aluminum Compression Lug. Conductor Size AWG or kcmil, Compressed Stranded #1/ Compacted Solid 1/0 /mmSquared Compact 50.
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 17.2kV, Fuse Test Port - Two Capactive Test Ports, Large Housing, Cable Insulation Diameter 0.890 inch - 1.220 inch / 25-31mm, Aluminum Conductor size 2 AWG Stranded Compressed, 1 AWG Solid Compact

274FLR3-D0220

Molded Current Limiting Fuse Housing, Nominal Fuse Voltage Rating 17.2kV, Fuse Test Port - Two Capactive Test Ports, Large Housing, Cable Insulation Diameter 0.890 inch - 1.220 inch / 25-31mm, Aluminum Conductor size 2 AWG Stranded Compressed, 1 AWG Solid Compact
Molded Current Limiting Fuse Housing, Nominal Fuse Voltage Rating 8.3kV, Fuse Test Port - Two Capacitive Test Ports, Large Housing, Cable Insulation Diameter 0.635 inch - 0.905 inch / 16-23mm, Aluminum Conductor size 2 AWG Solid/Compact.

168FLR3-B0210

Molded Current Limiting Fuse Housing, Nominal Fuse Voltage Rating 8.3kV, Fuse Test Port - Two Capacitive Test Ports, Large Housing, Cable Insulation Diameter 0.635 inch - 0.905 inch / 16-23mm, Aluminum Conductor size 2 AWG Solid/Compact.
Molded Current Limiting Fuse Housing, Nominal Fuse Voltage Rating 8.3kV, Fuse Test Port - Two Capacitive Test Ports, Small Housing, Cable Insulation Diameter 0.575 inch - 0.740 inch / 15-19mm, Aluminum Conductor size 4/0 AWG Stranded/Compressed.

168FLR1-A0270

Molded Current Limiting Fuse Housing, Nominal Fuse Voltage Rating 8.3kV, Fuse Test Port - Two Capacitive Test Ports, Small Housing, Cable Insulation Diameter 0.575 inch - 0.740 inch / 15-19mm, Aluminum Conductor size 4/0 AWG Stranded/Compressed.
600 Amp, 15/25kV, 600 Series Deadbreak, Elbow with Insulated Plug, Cap, Stud, Lug and Cable Adapter. Aluminum Compression Lug. Cable Insulation Diameter 1.370 inch to 1.630 inch. Conductor Size kcmil Compressed/Stranded 800.

K655LR-M0390

600 Amp, 15/25kV, 600 Series Deadbreak, Elbow with Insulated Plug, Cap, Stud, Lug and Cable Adapter. Aluminum Compression Lug. Cable Insulation Diameter 1.370 inch to 1.630 inch. Conductor Size kcmil Compressed/Stranded 800.
600 Amp, 15/25kV, 600 Series Deadbreak, Elbow with Insulated Plug, Cap, Stud, Lug and Cable Adapter. Aluminum Compression Lug. Cable Insulation Diameter 1.370 inch to 1.630 inch. Conductor Size kcmil Compressed/Stranded 700/750 or Compact/Solid 900.

K655LR-M0380

600 Amp, 15/25kV, 600 Series Deadbreak, Elbow with Insulated Plug, Cap, Stud, Lug and Cable Adapter. Aluminum Compression Lug. Cable Insulation Diameter 1.370 inch to 1.630 inch. Conductor Size kcmil Compressed/Stranded 700/750 or Compact/Solid 900.
600 Amp, 15/25kV, 600 Series Deadbreak, Elbow with Insulated Plug, Cap, Stud, Lug and Cable Adapter. Aluminum Compression Lug. Cable Insulation Diameter 1.370 inch to 1.630 inch. Conductor Size kcmil Compressed/Stranded 650 or Compact/Solid 750 or mm2 Compact 400.

K655LR-M0360

600 Amp, 15/25kV, 600 Series Deadbreak, Elbow with Insulated Plug, Cap, Stud, Lug and Cable Adapter. Aluminum Compression Lug. Cable Insulation Diameter 1.370 inch to 1.630 inch. Conductor Size kcmil Compressed/Stranded 650 or Compact/Solid 750 or mm2 Compact 400.

Frequently Asked Questions

What voltage rating does this fuse housing support?

The fuse housing is rated for a nominal voltage of 17.2kV.

What cable insulation diameters fit this housing?

The housing accommodates cable insulation diameters from 0.805 to 1.060 inches (20 to 27mm).

Which aluminum conductor sizes are compatible?

The housing supports 1 AWG stranded compressed and 1/0 AWG solid compact aluminum conductors.

How many test ports does this housing have?

The housing includes two capacitive test ports for non-intrusive diagnostics.

Is this housing suitable for outdoor installations?

The aluminum construction provides corrosion resistance, making it suitable for harsh environments.

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.

What technical support does Thomas and Betts offer?

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?

Thomas and Betts products are utilized across various industries including electrical construction, industrial automation, telecommunications, and utilities. Their extensive range of cord and cable fittings, electrical boxes, and metal framing systems are designed for applications that require durability and reliability in harsh environments, ensuring optimal performance in both permanent and temporary installations.

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.