Mechanical Cable Connectors
WISETREE is a professional mechanical cable connectors manufacturer and supplier in China, providing bolted cable connectors and mechanical shear bolt connectors for electrical power distribution, cable jointing, and industrial installations. As part of our cable connectors manufacturer product range, our mechanical cable connectors offer bolted connection solutions for compatible electrical conductors without conventional compression crimping dies.
Our product range includes BMC, TMC, BMC-NW, BMC-N, MSC, and BSM-UL series, covering mechanical cable splice connectors and shear bolt cable connectors with different conductor-size ranges, connector dimensions, and bolt configurations. The BMC and TMC series include published models for conductor sizes up to 1000 mm² and 800 mm² respectively.
WISETREE supplies standard mechanical cable connectors and accepts custom connector inquiries based on drawings, conductor specifications, and installation requirements. Customers can request technical information, samples, OEM customization, and bulk order quotations.
Mechanical Cable Connector Product Range
WISETREE offers six mechanical cable connector series. Compare the product types, conductor requirements, and bolt configurations before selecting a suitable mechanical cable joint connector.
| Product Series | Connector Type | Selection Focus |
|---|---|---|
| BMC | Mechanical Cable Connector | Conductor range, connector dimensions, bolt quantity, screw specification, and bolt-head size. |
| TMC | Mechanical Cable Connector | Conductor size, overall length, bore dimensions, and bolt-head configuration. |
| BMC-NW | Mechanical Shear Bolt Connector | Conductor compatibility, shear bolt construction, and installation requirements. |
| BMC-N | Mechanical Shear Bolt Connector | Conductor-size range, bolt configuration, and connection geometry. |
| MSC | Mechanical Shear Bolt Connector | Connector body dimensions, conductor requirements, and bolt installation method. |
| BSM-UL | Mechanical Shear Bolt Connector | Model dimensions, conductor compatibility, and required technical documentation. |
The BMC and TMC series have published dimensional tables. For BMC-NW, BMC-N, MSC, and BSM-UL shear bolt connectors, request the corresponding model specifications to confirm the available conductor sizes and installation configurations.
Mechanical Cable Connector Specifications & Available Sizes
Mechanical cable connectors must match the conductor cross-section, connector bore, installation space, and bolt configuration. The following specifications should be checked when selecting mechanical cable splice connectors or shear bolt cable connectors.
| Specification | Selection Information |
|---|---|
| Available Series | BMC, TMC, BMC-NW, BMC-N, MSC, BSM-UL |
| Conductor Cross-Section | Model-specific conductor range in mm². |
| Conductor Material | Copper, aluminum, or specified compatible conductor material. |
| Conductor Construction | Solid, stranded, or other conductor class where supported. |
| Connection Method | Bolted or shear bolt connection. |
| Overall Length | L (mm). |
| Connection Length | L1 (mm). |
| Outer Diameter | D (mm). |
| Inner Diameter | d (mm). |
| Number of Bolts | According to the selected connector model. |
| Bolt Head Size | Across Flats (AF), in mm. |
| Screw Specification | Model-specific screw dimensions. |
| Rated Voltage / Standard | Confirm applicable model-specific electrical requirements and test documentation. |
BMC Mechanical Cable Connector Sizes
The WISETREE BMC mechanical cable connector series includes models with different conductor ranges, lengths, and bolt quantities.
| BMC Model | Conductor Size (mm²) | L (mm) | D (mm) | Bolts | Bolt AF (mm) |
|---|---|---|---|---|---|
| BMC-10/35 | 10–35 | 45 | 19 | 2 | 10 |
| BMC-16/95 | 16–95 | 70 | 24 | 2 | 10 |
| BMC-25/150 | 25–150 | 85 | 30 | 2 | 10 |
| BMC-95/240 | 95–240 | 120 | 33 | 4 | 13 |
| BMC-120/300 | 120–300 | 142 | 38 | 4 | 19 |
| BMC-185/400 | 185–400 | 170 | 42 | 6 | 19 |
| BMC-400/630 | 400–630 | 200 | 52 | 6 | 19 |
| BMC-800 | 800 | 220 | 60 | 8 | 22 |
| BMC-1000 | 1000 | 220 | 60 | 8 | 22 |
For additional L1, inner diameter, and screw specifications, view our BMC Mechanical Cable Connectors.
TMC Mechanical Cable Connector Sizes
The TMC mechanical cable connector series provides additional dimensional and bolt-head configurations. Available catalogue models include:
| TMC Model | Conductor Size (mm²) | L (mm) | D (mm) | Bolts | Bolt AF (mm) |
|---|---|---|---|---|---|
| TMC-10/35 | 10–35 | 45 | 19 | 2 | 10 |
| TMC-25/95 | 25–95 | 65 | 24 | 2 | 13 |
| TMC-35/150 | 35–150 | 80 | 28 | 2 | 17 |
| TMC-95/240 | 95–240 | 125 | 33 | 4 | 19 |
| TMC-120/300 | 120–300 | 140 | 37 | 4 | 22 |
| TMC-185/400 | 185–400 | 170 | 42 | 6 | 22 |
| TMC-500 | 500 | 190 | 46 | 6 | 22 or 27 |
| TMC-630 | 630 | 200 | 50 | 6 | 22 or 27 |
| TMC-800 | 800 | 270 | 56 | 8 | 22 or 27 |
For complete model dimensions and technical drawings, see TMC Mechanical Cable Connectors.
Selection Note: The listed dimensions follow WISETREE's published BMC and TMC product tables. The conductor-size designation alone does not establish compatibility with every conductor material, class, or shape. Confirm the model's approved conductor range and installation requirements before ordering.
How to Select Mechanical Cable Connectors
Select mechanical cable connectors according to conductor material, cable size, connection method, and installation requirements.
| Selection Factor | Required Information | Selection Guidance |
|---|---|---|
| Conductor Material | Copper / Aluminum / Specified conductor material | Check material compatibility for the exact model. |
| Conductor Size | Cross-section of both cable ends | Confirm both conductors fall within the approved connection range. |
| Conductor Construction | Solid / Stranded / Compacted / Flexible | Verify the compatible conductor class. |
| Conductor Shape | Round / Sector | Check whether inserts or preparation are required. |
| Connection Method | Bolted / Shear Bolt | Choose the required bolt connection design. |
| Joint Configuration | Equal-size / Reducing / Repair Joint | Confirm compatibility at both connection ends. |
| Installation Space | Available length and diameter | Check connector dimensions against the joint enclosure. |
| Electrical Requirements | Voltage, current, applicable standards | Verify model-specific application and test documentation. |
For mechanical cable connectors used with copper and aluminum conductors, confirm that the selected model is approved for the specified material combination. For unequal-size cable joints, provide conductor A and conductor B specifications separately.
Shear Bolt Technology & Connector Construction
Mechanical shear bolt connectors use a bolt-based clamping mechanism to establish conductor contact. In a shear-bolt design, the bolt head is intended to separate at a specified installation condition. The actual shear behavior, bolt configuration, and installation procedure depend on the connector model.
| Structural Feature | Technical Description / Selection Requirement |
|---|---|
| Shear Bolt Design | Confirm the specified shear mechanism and compatible installation method. |
| Bolt Quantity | Check the number of bolts for the selected connector size. |
| Bolt Head Size | Confirm the AF dimension and matching installation tool. |
| Shear-Off Position | Review the specified final bolt-head condition after installation. |
| Connector Body | Verify material, outer diameter, inner diameter, and surface finish. |
| Centering Insert | Confirm availability where conductor positioning is required. |
| Center Barrier | Check whether the design incorporates a conductor stop or barrier. |
| Oil Stop | Confirm blocked or unblocked construction where specified. |
| Jointing Compound | Verify whether contact compound is supplied with the model. |
WISETREE offers BMC-NW, BMC-N, MSC, and BSM-UL mechanical shear bolt connector series. Customers can request the corresponding product drawings to compare bolt designs and connector structures.
Mechanical vs. Compression Cable Connectors
Mechanical cable connectors and compression cable connectors use different conductor joining methods. Select the appropriate type based on installation equipment and project requirements.
| Feature | Mechanical Cable Connectors | Compression Cable Connectors |
|---|---|---|
| Connection Method | Bolted or shear bolt connection. | Crimped connection. |
| Installation Tools | Specified wrench or compatible bolt installation tool. | Crimping tool and matching die. |
| Conductor Size | Some models accept a defined conductor-size range. | Generally matched to a designated conductor size and crimping system. |
| Installation Control | Bolt tightening or specified shear-off procedure. | Crimping profile, position, and compression sequence. |
| Main Selection Factor | Bolt design, conductor compatibility, and connector dimensions. | Crimping die, conductor compatibility, and compression requirements. |
For projects requiring conventional compression joining, explore copper cable connectors and aluminum cable connectors. Mechanical and compression connectors should not be considered interchangeable without technical verification.
Conductor Compatibility & Material Options
Mechanical cable splice connectors may be designed for different conductor materials and constructions. Compatibility must be confirmed for the selected BMC, TMC, or shear bolt connector model.
| Compatibility Item | Required Verification |
|---|---|
| Copper Conductors | Confirm approved copper conductor sizes and classes. |
| Aluminum Conductors | Confirm approved aluminum conductor sizes and installation requirements. |
| Copper-to-Aluminum Connections | Verify that the specific model supports the required material transition. |
| Solid Conductors | Check nominal size and actual conductor dimensions. |
| Stranded Conductors | Confirm conductor class and compatibility. |
| Sector-Shaped Conductors | Verify whether preparation or inserts are required. |
| Flexible Conductors | Check whether the connector is approved for the specified flexible conductor class. |
| Reducing Connections | Confirm independent size requirements for both conductors. |
| Connector Body Material | Review the specified metal or alloy for the product. |
| Surface Treatment | Confirm the available finish and contact protection requirements. |
For dedicated copper-to-aluminum transition products, customers can also review bimetallic connectors. Select the final connection type according to the actual conductor materials and project specifications.
Mechanical Connector Installation Requirements
Correct installation is essential for bolted cable connectors and mechanical shear bolt connectors. Use the installation procedure specified for the selected product series.
| Installation Step | Requirement |
|---|---|
| 1. Cable Preparation | Prepare the conductor and strip insulation according to the installation instructions. |
| 2. Connector Inspection | Check the connector body, bolts, and supplied components. |
| 3. Conductor Insertion | Insert the conductor to the specified position. |
| 4. Centering Inserts | Install any required conductor positioning components. |
| 5. Bolt Installation | Use the specified tool and bolt-tightening sequence. |
| 6. Shear Bolt Operation | Follow the specified shear-off procedure for applicable models. |
| 7. Connection Inspection | Check the completed connection against the product installation requirements. |
| 8. Joint Enclosure | Verify compatibility with the insulation and sealing system. |
Important: Bolt torque, shear-off characteristics, installation sequence, and tool specifications must come from the selected connector's technical instructions. Do not apply installation values from another manufacturer's mechanical connector.
Mechanical Cable Connector Applications
WISETREE mechanical cable connectors can be evaluated for conductor joining requirements in electrical distribution systems, industrial installations, and infrastructure projects.
| Application | Connection Requirement | Selection Focus |
|---|---|---|
| Power Distribution Networks | Joining compatible power conductors. | Conductor range, bolt connection, and applicable standards. |
| Underground Cable Jointing | Conductor joining within a complete cable joint system. | Connector dimensions, insulation system, and approved electrical rating. |
| Substation Cable Connections | Mechanical joining according to project specifications. | Conductor compatibility and technical documentation. |
| Industrial Electrical Systems | Joining power cables during installation or modification. | Installation space, conductor size, and bolt configuration. |
| Cable Repair & Extension | Connecting existing or replacement conductors. | Conductor materials, sizes, and connection geometry. |
| Renewable Energy Infrastructure | Cable joining in suitable power distribution installations. | Electrical specifications and environmental requirements. |
For underground cable joints, the mechanical connector must be compatible with the complete insulation and sealing system. The connector itself does not provide the full waterproofing or insulation required by a finished cable joint.
Custom Mechanical Cable Connectors & OEM Manufacturing
As a mechanical cable connectors manufacturer, WISETREE supplies standard catalogue models and accepts custom mechanical connector inquiries based on technical drawings, conductor specifications, and purchasing requirements.
| Customization Item | Availability / Scope | Required Information |
|---|---|---|
| Product Series | Standard: BMC, TMC, BMC-NW, BMC-N, MSC, BSM-UL. | Model and quantity. |
| Conductor Size | Custom: Special conductor-size requirements subject to evaluation. | Conductor material, class, and size. |
| Connector Length | Custom: Special overall or connection length. | Dimensions and tolerances. |
| Inner / Outer Diameter | Custom: Special connector dimensions. | Technical drawing. |
| Bolt Quantity | Custom: Alternative bolt configurations subject to engineering review. | Connection structure and installation requirements. |
| Bolt Specification | Custom: Specified bolt dimensions or head design. | Bolt drawing and technical requirements. |
| Connector Material | Optional / Custom: Specified material grade subject to confirmation. | Material specification. |
| Surface Treatment | Optional: Specified finish subject to process availability. | Surface treatment requirements. |
| Centering Insert | Optional / Custom: Conductor positioning components subject to design compatibility. | Conductor dimensions and connection drawing. |
| Oil Stop / Barrier | Custom: Special blocking structure subject to design review. | Joint construction requirements. |
| Product Marking | Optional: Model or customer identification. | Marking specification and quantity. |
| OEM Packaging | Optional: Customer labels and packaging. | Packaging artwork and order quantity. |
Customization Note: Standard refers to existing catalogue series. Optional and Custom requirements are evaluated according to manufacturing feasibility, technical specifications, and order conditions. A modified connector design may require additional electrical or mechanical validation.
For custom mechanical cable connectors, send a drawing showing conductor sizes, connector dimensions, bolt arrangement, material requirements, and estimated purchasing quantity.
Quality Control & Applicable Standards
WISETREE performs product inspections before shipment. For mechanical cable connectors and shear bolt connectors, quality requirements should be reviewed against the approved model specifications and applicable test documentation.
| Inspection Item | Verification Focus |
|---|---|
| Material Verification | Connector body and bolt material specifications. |
| Dimensional Inspection | Overall length, diameters, bolt dimensions, and tolerances. |
| Bolt Inspection | Bolt quantity, dimensions, threads, and construction. |
| Shear Bolt Verification | Applicable shear-off performance requirements and inspection criteria. |
| Electrical Performance | Applicable electrical resistance and temperature-rise testing requirements. |
| Mechanical Performance | Connection integrity and model-specific mechanical test requirements. |
| Surface Inspection | Visible defects, surface condition, and specified contact protection. |
| Product Identification | Model, size, marking, and shipment traceability. |
Applicable Standards: Depending on connector design and project requirements, mechanical cable connectors may be specified under applicable parts of the IEC 61238 series or other relevant electrical connection standards. Product compliance must be confirmed using model-specific documents and the applicable standard edition.
For projects requiring type-test reports, material certificates, dimensional inspection records, or other technical documents, include the documentation requirements in the RFQ. Company-level certification does not automatically establish compliance for every mechanical shear bolt connector model.
MOQ, Samples, Lead Time & Packaging
WISETREE supplies mechanical cable connectors for electrical distributors, equipment manufacturers, contractors, and infrastructure projects. Standard products and custom shear bolt connectors may have different purchasing conditions.
| Procurement Item | Supply Information |
|---|---|
| Standard Series | BMC, TMC, BMC-NW, BMC-N, MSC, and BSM-UL. |
| Standard MOQ | Confirmed according to model and purchasing quantity. |
| Custom MOQ | Confirmed according to customization and manufacturing requirements. |
| Standard Samples | Standard samples may be provided without a sample charge, subject to availability and shipping arrangements. |
| Custom Samples | Special customized samples may require a sample fee. |
| Sample Lead Time | Confirmed according to the selected model and sample requirements. |
| Production Lead Time | Confirmed according to order quantity and production schedule. |
| Standard Packaging | Product packaging and carton quantity confirmed for each model. |
| Protective Packaging | Special protection requirements for bolts, contact surfaces, or supplied components can be reviewed. |
| OEM Packaging | Customer-specific packaging and labels subject to order confirmation. |
| Technical Documents | Available dimensional drawings and product specifications upon request. |
For wholesale mechanical cable connector orders, provide the required product series, model numbers, purchasing quantities, and delivery destination. For project procurement, include the conductor specifications and applicable technical requirements.
Frequently Asked Questions About Mechanical Cable Connectors
What is the difference between BMC, TMC, BMC-N and BMC-NW mechanical connectors?
BMC and TMC are mechanical cable connector series with published dimensional and bolt configuration tables. BMC-N and BMC-NW are listed as mechanical shear bolt connector series. Their suitability depends on conductor compatibility, connector dimensions, bolt construction, and installation requirements. Compare the actual model specifications before selecting a product.
How do I select the correct mechanical cable connector size?
Start with the conductor material, cross-section, construction, and shape. Check the connector's approved conductor range, inner diameter, length, and bolt configuration. If the two cable ends differ, provide the specifications of both conductors.
Can mechanical cable connectors join copper and aluminum conductors?
Some mechanical cable connector designs are suitable for specified copper and aluminum conductors, but compatibility must be confirmed for the selected model. Do not assume that every BMC, TMC, or shear bolt connector supports copper-to-aluminum connections.
What is the difference between bolted and shear bolt cable connectors?
Both use mechanical clamping to connect electrical conductors. Shear bolt connectors incorporate a bolt-head separation mechanism as part of the specified installation process. The required tools, installation sequence, and final bolt configuration depend on the connector model.
Do shear bolt cable connectors require special installation tools?
Installation requires tools compatible with the specified bolt-head design and connector instructions. Provide the connector model and bolt specifications to confirm the required tool. Conventional compression crimping dies are not used for the mechanical bolted connection itself.
Can mechanical cable connectors accommodate different cable sizes?
Some mechanical connector models cover a defined conductor-size range, and certain designs can accommodate unequal-size conductor joints. The actual conductor sizes, materials, and constructions must be compatible with the selected model.
Are WISETREE mechanical cable connectors suitable for medium-voltage applications?
Suitability depends on the specific connector, applicable electrical test documentation, and complete cable joint system. Customers requiring medium-voltage cable connectors should specify the voltage class and relevant project standards so the available product information can be reviewed.
Are your mechanical connectors tested according to IEC 61238?
Applicable test standards and report coverage must be confirmed for each model. If your project requires a particular part or edition of IEC 61238, include it in your inquiry together with the connector model and conductor specifications.
Can WISETREE manufacture custom mechanical cable connectors?
Yes. WISETREE accepts custom mechanical cable connector inquiries based on drawings, conductor requirements, connector dimensions, and bolt specifications. Non-standard designs are subject to technical feasibility review and any required product validation.
What are the MOQ and lead time for mechanical cable connectors?
MOQ and production lead time depend on the selected model, order quantity, and customization requirements. Standard product samples may be available without a sample charge, while special custom samples may require additional fees. Contact WISETREE with your model list and estimated purchasing quantities.
Request a Mechanical Cable Connector Quote
Looking for a reliable mechanical cable connectors manufacturer for power distribution, cable jointing, or wholesale supply? WISETREE provides BMC, TMC, BMC-NW, BMC-N, MSC, and BSM-UL mechanical cable connectors, including bolted and shear bolt connector series for specified conductor joining requirements.
Send us your product model, conductor materials, conductor sizes for both cable ends, connector dimensions, preferred bolt configuration, applicable technical standards, and order quantity. For custom mechanical shear bolt connectors, attach a technical drawing or reference sample to support product evaluation and quotation.
Need Mechanical or Shear Bolt Cable Connectors?
Contact WISETREE for mechanical cable connector specifications, BMC and TMC model selection, custom shear bolt connectors, sample requests, and bulk order quotations. Share your cable sizes, bolt requirements, or technical drawing to get started.
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