Reliable cable-to-equipment connections are essential to the safe operation of medium-voltage power distribution systems. In a pad-mounted transformer, cable branch box, switchgear cabinet, or underground distribution network, the connection point must maintain electrical insulation, conductor continuity, external shielding, mechanical stability, and environmental sealing throughout its service life.
YIEOU is a professional Separable Connector manufacturer in China, specializing in medium- and high-voltage cable accessories and power connection components. Our American-style cable accessory range covers 200A loadbreak systems, 600A deadbreak systems, equipment-side bushings, junctions, protective caps, grounding accessories, busbars, and elbow surge arresters.
Rather than supplying only one connector body, YIEOU supports the matching of the cable-side connector, equipment interface, conductor terminal, insulating component, and associated accessories. This allows project requirements to be evaluated as a complete connection arrangement before manufacturing begins.
YIEOU Manufactures Separable Connector Systems for Medium-Voltage Distribution
A Separable Connector is a shielded and insulated cable accessory used to connect a medium-voltage cable to compatible electrical equipment. Depending on its interface and current class, it may be configured as a loadbreak or deadbreak connection.
The Separable Connector is commonly installed between a shielded power cable and equipment such as:
- Pad-mounted transformers
- Cable branch boxes
- Medium-voltage switchgear
- Ring main units
- Sectionalizing cabinets
- Underground cable junctions
- Distribution substations
- Other equipment fitted with compatible bushing interfaces
YIEOU’s American-style products are developed around ANSI/IEEE 386-related interface and product requirements. Our current product coverage includes 15kV and 25kV 200A loadbreak elbow connectors, 15kV and 24kV 600A T-shaped connectors, bushings, junctions, grounding elbows, insulated caps, busbars, and associated connection components.
Table 1: Main YIEOU Separable Connector Product Families
| Product family | Main function | Typical installation position |
| 200A loadbreak elbow connector | Connects shielded cable to a compatible loadbreak bushing interface | Pad-mounted transformers, cable branch boxes and sectionalizing equipment |
| 600A T-shaped front connector | Connects higher-current cable to a compatible 600A equipment interface | Switchgear, transformers and cable distribution cabinets |
| 600A deadbreak connector plug | Supports separable splices or extensions within a 600A deadbreak system | Equipment fronts, cable splices and extended bushing arrangements |
| Bushing insert | Converts a compatible bushing well into a 200A loadbreak interface | Transformer and switchgear bushing wells |
| Integral deadbreak bushing | Provides an equipment-side interface for a 600A connector | Cable branch cabinets, switchgear and related equipment |
| Loadbreak junction | Supports cable loops, taps, splices and sectionalizing points | Underground vaults, cabinets and distribution equipment |
| Single-pass and double-pass connectors | Extend or divide cable connection interfaces | Compact distribution cabinets and branch connection arrangements |
| Insulated protective cap | Insulates and seals an unused compatible interface | Bushings, junctions and equipment connection points |
| Grounding elbow | Creates a visible grounding connection for cable checking and maintenance | Underground cable distribution systems |
| Elbow surge arrester | Limits incoming overvoltage at the cable-equipment interface | Transformers, switchgear and cable networks |
| 200A, 600A and mixed busbars | Supports multi-way cable connection and current-class transition arrangements | Cable branch equipment and distribution cabinets |
This product coverage allows the connector and its related equipment-side components to be considered together. It is particularly useful where a project includes several cable directions, spare interfaces, grounding requirements, surge protection, or future connection expansion.
200A Loadbreak Elbow Connectors Support Flexible Distribution Layouts
The 200A loadbreak elbow connector is one of the principal products in YIEOU’s American cable accessory range. It provides a fully insulated and externally shielded plug-in termination between an underground cable and compatible loadbreak equipment.
YIEOU provides 15kV and 25kV 200A loadbreak elbow connector series. The connector body is manufactured with insulating and semiconductive EPDM rubber structures. Depending on the selected configuration, the assembly can include a conductor cable lug, loadbreak probe, test-point cap, grounding wire, installation tool, silicone lubricant, cleaning materials, installation instructions, and quality documentation.
A Complete 200A Connection Requires More Than the Elbow
A 200A elbow connector normally operates together with an equipment-side bushing insert or another compatible interface. The cable-side elbow and equipment-side bushing must match in voltage class, current class, interface design, and operating category.
YIEOU’s 15kV 200A bushing insert threads into a compatible universal bushing well to establish the loadbreak interface. When correctly matched with the elbow connector, the arrangement creates an insulated, shielded, and separable cable connection.
Depending on the system layout, a 200A loadbreak arrangement may also include:
- Loadbreak junctions
- Single-pass casing connectors
- Double-pass casing connectors
- Lengthening casings
- Insulated protective caps
- Grounding elbows
- Elbow surge arresters
These components allow the connection system to support radial feeds, loop feeds, cable branches, sectionalizing points, testing arrangements, grounding operations, and spare-interface protection.
Cable Dimensions Must Be Confirmed Before Production
The nominal voltage and conductor cross-section alone are not enough to select a 200A elbow connector.
The actual cable insulation diameter must also fit the connector or cable adapter range. Conductor material affects terminal selection, while the shielding structure affects cable preparation and grounding. The equipment bushing must also be confirmed as a compatible loadbreak interface.
For this reason, YIEOU recommends confirming the complete cable datasheet and equipment-side interface before preparing samples or production orders.
600A Deadbreak Connectors Serve Higher-Current Cable Connections
Where the circuit requires a higher continuous current class, YIEOU provides 600A American-style cable accessories for 15kV and 24kV distribution systems.
The main products include T-shaped front connectors, deadbreak connector plugs, integral deadbreak bushings, insulated protective caps, standard busbars, shaped busbars, and mixed 600A/200A busbars.
T-Shaped Connectors Form the Main Cable Termination
YIEOU’s 600A T-shaped front connector is designed as a prefabricated cable termination with insulating, semiconductive, stress-control, and grounding structures.
Its main components can include:
- T-shaped connector body
- Conductor cable lug
- Cable adapter
- Connecting screw
- Insulating plug or cap
- Test-point component
- Grounding wire
- Installation wrench
- Silicone lubricant
- Cleaning material
- Installation instructions
- Quality certificate
The conductor terminal can be selected according to the cable material. Copper terminals can be used for copper conductors, while copper-aluminum terminals may be selected for aluminum cable conductors where applicable.
The external semiconductive EPDM layer works with the cable shielding system to maintain external shielding continuity. Internally, the stress-control structure helps manage the electric field around the cable insulation cutback and connection area.
Deadbreak Connector Plugs Support Extension and Splicing
A 600A deadbreak connector plug can be used to connect compatible deadbreak terminations or to form a separable splice. It may also be combined with a bushing extension where additional distance is needed between the equipment front plate and the cable termination.
This can be useful when cable routing space is limited or when the bending radius and positioning of larger medium-voltage cables require additional clearance.
Equipment-Side Bushings Must Match the Connector
YIEOU also manufactures integral deadbreak bushings for use with compatible 600A T-shaped connectors. These epoxy-resin bushing components can be installed in cable branch cabinets and switchgear arrangements, including equipment using SF₆ switching structures.
For a reliable connection, the connector and bushing must be checked as one interface. Similar current and voltage descriptions do not automatically guarantee mechanical or electrical compatibility.
Loadbreak and Deadbreak Connectors Have Different Operating Roles
A 200A loadbreak elbow and a 600A deadbreak connector are both separable cable accessories, but they are designed for different current levels, interfaces, and operating procedures.
Table 2: 200A Loadbreak and 600A Deadbreak Connector Comparison
| Comparison point | 200A loadbreak system | 600A deadbreak system |
| Typical current class | 200A | 600A |
| Common connector shape | Elbow connector | T-shaped connector |
| Typical interface | Loadbreak bushing insert or junction | Integral or equipment-mounted deadbreak bushing |
| Connection structure | Plug-in connection | Bolted and plugged T-body connection |
| Typical equipment | Pad-mounted transformers, branch boxes and sectionalizing cabinets | Switchgear, transformers and higher-current cable branch equipment |
| Common supporting parts | Bushing inserts, junctions, caps, grounding elbows and elbow arresters | T-plugs, integral bushings, protective caps, extensions and busbars |
| Switching consideration | Used according to applicable loadbreak ratings and procedures | Separated only after the circuit has been de-energized and secured |
| Main selection data | Cable diameter, conductor size, voltage, bushing and cable material | Cable diameter, conductor size, voltage, bushing, cable material and equipment space |
The operating category must be clearly identified before product selection. A deadbreak connector should never be treated as a loadbreak switching device. Site operation must follow the applicable system design, safety procedure, equipment instructions, and local electrical requirements.
Supporting Components Complete the Separable Connector Arrangement
A stable Separable Connector system often includes several products beyond the primary elbow or T-shaped cable termination.
Bushing Inserts Create the Equipment Interface
A bushing insert is installed in a compatible bushing well to provide the mating interface for a 200A loadbreak elbow.
This arrangement can simplify equipment assembly and field replacement because the insert is installed as a separate component. The connection still depends on correct tightening, interface compatibility, and complete seating of the elbow on the insert.
Loadbreak Junctions Support Loops, Taps, and Sectionalizing
YIEOU’s 200A loadbreak junctions are intended for pad-mounted equipment, underground vaults, and other distribution arrangements requiring cable loops, taps, splices, or sectionalizing points.
A junction can also make it easier to isolate a cable section during fault identification or equipment replacement. When matched with comparably rated loadbreak elbows, it forms a shielded and separable connection arrangement.
Grounding Elbows Provide a Visible Grounding Point
Grounding elbows are used in underground distribution systems to establish a visible grounding connection during cable checking, testing, or maintenance preparation.
YIEOU’s 15kV 200A grounding elbow includes conductive contact components, an insulated and shielded rubber body, and a grounding cable. It can be connected to compatible bushing inserts or feed-through interfaces according to the grounding arrangement.
Grounding procedures must always be carried out by qualified personnel under the applicable site safety rules.
Protective Caps Insulate Unused Interfaces
An unused bushing or junction interface must not be left exposed. A correctly matched insulated protective cap provides electrical insulation, mechanical sealing, external shielding, and environmental protection for a spare interface.
Protective caps may be used for temporary or permanent installation, depending on the system design and future expansion plan. YIEOU provides protective cap products for both 200A and 600A accessory systems.
Elbow Surge Arresters Add Overvoltage Protection
An elbow surge arrester connects to a compatible 200A interface and helps limit overvoltage entering the cable network or connected equipment.
YIEOU’s elbow surge arrester range is intended for applications involving transformers, switchgear, and medium-voltage cable networks. It can be considered where the distribution design requires protection against lightning-related or switching-related overvoltage.
The arrester rating must be selected according to the system voltage, grounding method, insulation coordination, and project protection requirements.
Separable Connectors Are Used Across Medium-Voltage Distribution Equipment
The main application of a Separable Connector is not an abstract “cable system.” Its practical role is to establish a removable, insulated, and shielded connection between a cable and specific distribution equipment.
Pad-Mounted Transformers
In pad-mounted transformer installations, 200A loadbreak elbows are commonly used for cable connections where compatible loadbreak bushings are provided.
A complete arrangement may include elbow connectors, bushing inserts, feed-through components, grounding elbows, protective caps, and surge arresters. This supports incoming and outgoing cable connections, loop-feed layouts, grounding preparation, and spare-interface protection.
Cable Branch Boxes
Cable branch boxes require compact and organized connection points for cable distribution, branching, and sectionalizing.
Depending on the current level and cabinet structure, these systems may use 200A loadbreak junctions, 600A T-shaped connectors, busbars, mixed-current interfaces, bushings, and insulated caps.
Medium-Voltage Switchgear
Switchgear and ring main units often require 600A cable terminations where higher current capacity and secure deadbreak connections are needed.
Connector selection must consider the switchgear bushing interface, cable entry direction, phase spacing, termination depth, cable bending radius, and available installation space.
Underground Distribution Networks
Underground networks use separable connectors at transformer terminals, cable junctions, branch cabinets, and sectionalizing points.
The shielded connector structure and compatible protective accessories help create compact connection arrangements while supporting maintenance, fault isolation, and future network expansion.
Distribution Substations and Compact Power Equipment
Separable connectors may also be used in compact substations and other packaged distribution equipment where cable interfaces must be assembled within a limited enclosure.
In these installations, the cable route, connector orientation, phase distance, grounding arrangement, and enclosure clearance should be reviewed before the final accessory configuration is confirmed.
Accurate Project Data Improves Connector Matching
The most common connector-selection problems are not caused by the absence of a suitable product family. They are caused by incomplete cable information or an incorrect assumption about the equipment interface.
Before quoting or confirming a Separable Connector, YIEOU can review the project’s cable and equipment information.
Table 3: Information Required for Separable Connector Selection
| Required information | Selection purpose |
| Nominal system voltage | Identifies the basic voltage class |
| Maximum system voltage | Confirms insulation and equipment requirements |
| Required continuous current | Determines the 200A or 600A system family |
| Loadbreak or deadbreak requirement | Confirms the connector operating category |
| Cable standard and designation | Identifies the cable construction |
| Conductor material | Supports copper or copper-aluminum terminal selection |
| Conductor cross-section | Determines the conductor lug range |
| Cable insulation diameter | Determines connector or cable adapter fit |
| Cable shielding structure | Supports correct cable preparation and grounding |
| Cable outer diameter | Helps evaluate installation space and sealing |
| Equipment type | Clarifies the actual application |
| Bushing model or interface drawing | Confirms equipment-side compatibility |
| Cable entry direction | Helps confirm connector orientation |
| Available cabinet space | Supports installation and cable-training evaluation |
| Test-point requirement | Confirms whether a capacitive test point is needed |
| Grounding requirement | Identifies grounding elbows and related components |
| Surge protection requirement | Identifies whether an elbow arrester is required |
| Spare-interface arrangement | Determines protective caps and future expansion needs |
| Installation kit requirement | Confirms tools, lubricant, cleaning material and instructions |
| Documentation requirement | Confirms drawings, certificates and testing records |
For replacement projects, clear photographs, dimensional drawings, cable markings, existing connector information, and equipment nameplate data can support a more accurate evaluation.
Factory Manufacturing Supports Consistent Separable Connector Quality
A Separable Connector combines conductive, insulating, semiconductive, mechanical, and sealing functions in one compact component. Its performance depends on material preparation, rubber mixing, molding, curing, interface accuracy, conductor processing, assembly, and inspection.
YIEOU integrates research and development, production, testing, sales, engineering support, warehousing, and after-sales service within its manufacturing operation.
Founded in 2018, the company has expanded to a manufacturing area of more than 13,000 square metres and employs approximately 210 people across production, assembly, engineering, R&D, warehousing, technical support, quality control, sales, and related departments.
Rubber and Epoxy Manufacturing Equipment
YIEOU’s factory is equipped with automatic rubber injection machines, epoxy molding machines, large-scale mixing and processing equipment, hydraulic production equipment, and industrial curing facilities.
These capabilities support the manufacture of:
- EPDM connector bodies
- Insulating rubber components
- Semiconductive shielding structures
- Stress-control components
- Epoxy bushings
- Insulated equipment interfaces
- Other molded cable accessory parts
Controlling these processes within the factory helps maintain more stable dimensions, material distribution, surface condition, and batch consistency.
Organized Production and Delivery Coordination
YIEOU has established functional departments covering production, assembly, technical support, R&D, engineering, warehousing, sales, and after-sales service.
This structure supports the complete process from technical confirmation and material preparation to manufacturing, inspection, packaging, warehousing, and delivery.
For repeat orders, confirmed cable ranges, product configurations, package contents, labels, and documentation requirements can be coordinated to improve consistency between batches.
Testing Capability Supports Product Verification
Medium-voltage cable accessories cannot be evaluated through appearance alone. Their insulation, shielding, material, and electrical characteristics require controlled inspection and testing.
YIEOU has introduced a voltage withstand testing room, partial discharge room, precision material analysis equipment, and electrical performance testing equipment. The company states that 16 additional testing units have been added to strengthen material and product verification.
Depending on the product and order requirements, quality-control activities may cover:
- Raw-material evaluation
- Dimensional inspection
- Surface inspection
- Molded component inspection
- Assembly inspection
- Electrical performance testing
- Power-frequency withstand evaluation
- Partial-discharge evaluation
- Packaging and delivery inspection
- Documentation review
YIEOU’s American-style cable accessories are developed in line with ANSI/IEEE 386-related requirements. The company also refers to IEC 60502, GB 12706, GB 11032, and JB 8144 for applicable products and testing activities.
The applicable test items, sampling method, acceptance criteria, and report requirements should be confirmed according to the specific product and project.
OEM and ODM Services Support Customized Supply
Project and market requirements can differ in product markings, branding, package contents, cable ranges, documentation, and order quantities.
YIEOU provides OEM and ODM services for medium- and high-voltage cable accessories, including private-label manufacturing, product customization, packaging support, label and marking design, technical communication, sample preparation, batch-production coordination, and long-term supply cooperation.
Private-Label Manufacturing
Products can be supplied with agreed brand names, logos, product labels, carton markings, and packaging presentation.
This supports companies developing their own cable accessory product range or integrating connector products into a broader power distribution portfolio.
Product and Configuration Adjustment
Depending on technical feasibility, YIEOU can discuss adjustments relating to product structure, materials, accessory configuration, markings, or application requirements.
Technical confirmation is completed before sampling or mass production to reduce differences between the requested product and the final delivery.
Sample-to-Production Coordination
Where project evaluation requires samples, YIEOU can arrange sample preparation before formal batch manufacturing.
After the sample, technical details, packaging, branding, and order requirements are confirmed, the project can proceed to production planning, quality control, and shipment preparation.
A Complete Product Range Simplifies Project Coordination
Sourcing the elbow connector, bushing, cap, junction, grounding accessory, and arrester as unrelated items can create unnecessary interface risks.
Working with one factory for the main connection system provides several practical advantages.
Clearer Interface Confirmation
The cable-side and equipment-side products can be reviewed together rather than selected independently.
More Complete Delivery Kits
Connector bodies, terminals, probes, adapters, screws, caps, lubricants, cleaning materials, installation tools, instructions, and quality documents can be coordinated before shipment.
More Consistent Product Batches
Confirmed specifications, materials, markings, packaging, and accessory lists can be maintained for future orders.
Easier Technical Communication
Cable information, bushing drawings, cabinet dimensions, installation direction, and accessory requirements can be discussed within one project.
Better Support for Product-Line Development
OEM cooperation can cover several related connector and accessory products instead of only one individual component.
Why Work with YIEOU as a Separable Connector Manufacturer?
YIEOU combines product coverage, manufacturing capability, testing facilities, technical communication, and OEM support within one cable accessory manufacturing system.
Our strengths include:
- 200A loadbreak and 600A deadbreak product coverage
- Cable-side and equipment-side connection components
- Supporting bushings, junctions, busbars, caps, grounding elbows, and arresters
- More than 13,000 square metres of manufacturing space
- Automatic rubber injection and epoxy molding equipment
- Material analysis and electrical testing facilities
- Voltage withstand and partial-discharge testing rooms
- Engineering and product-selection support
- OEM branding and packaging services
- Sample and batch-production coordination
- Long-term factory supply support
These capabilities allow YIEOU to support transformer manufacturers, switchgear factories, cable accessory suppliers, power equipment companies, and medium-voltage distribution projects with a more coordinated Separable Connector supply solution.
Frequently Asked Questions About Separable Connectors
What is a Separable Connector used for?
A Separable Connector connects a shielded medium-voltage cable to compatible electrical equipment such as a transformer, switchgear cabinet, cable branch box, junction, or sectionalizing device.
It provides conductor connection, electrical insulation, external shielding, stress control, grounding continuity, and environmental sealing within one connection arrangement.
Does YIEOU manufacture both 200A and 600A connectors?
Yes. YIEOU manufactures 200A loadbreak elbow connector systems and 600A deadbreak or T-shaped connector systems.
The product range also includes supporting bushings, junctions, busbars, protective caps, grounding elbows, casing components, and elbow surge arresters.
Can a Separable Connector be selected only by voltage?
No. The voltage class is only one part of the selection.
The current class, cable conductor size, conductor material, cable insulation diameter, shielding construction, equipment bushing interface, operating category, and installation space must also be confirmed.
What is the difference between a loadbreak and deadbreak connector?
A loadbreak connector is designed for specified switching operations when used within its approved rating, compatible system, and operating procedure.
A deadbreak connector is not intended to be separated while the circuit is energized under load. It must be handled only after the circuit has been properly de-energized, isolated, tested, and grounded according to the applicable safety procedure.
Can YIEOU supply a complete connector installation kit?
Depending on the selected product, the delivery package can include the connector body, conductor terminal, probe, adapter, grounding wire, test-point cap, installation tool, silicone lubricant, cleaning material, installation instructions, quality certificate, and related accessories.
The final package should be confirmed during order preparation.
Can YIEOU match a connector to an existing cable and bushing?
Yes. The cable datasheet, conductor information, insulation diameter, bushing drawing, equipment model, connector photograph, and dimensional information can be provided for technical evaluation.
Final compatibility should be confirmed before ordering or installation.
Does YIEOU provide OEM Separable Connector manufacturing?
Yes. YIEOU supports OEM branding, labels, packaging, markings, sample preparation, selected product adjustments, batch manufacturing, and long-term supply cooperation.
Work with a China Separable Connector Manufacturer
A reliable Separable Connector must match the cable, conductor, equipment bushing, system voltage, current class, operating category, grounding arrangement, and installation environment.
YIEOU manufactures 200A loadbreak connectors, 600A deadbreak connectors, T-shaped cable terminations, bushings, junctions, busbars, protective caps, grounding elbows, surge arresters, and related medium-voltage cable accessories.
With factory-based rubber and epoxy production, dedicated testing facilities, engineering support, and OEM manufacturing capability, we can support both standard product supply and project-specific connection requirements.
Provide the cable datasheet, conductor size, cable insulation diameter, system voltage, equipment interface drawing, required current class, and accessory list. YIEOU will assist with product matching, technical confirmation, sample coordination, manufacturing, testing, and delivery preparation.
Contact YIEOU to discuss Separable Connector requirements for transformers, switchgear, cable branch boxes, underground distribution networks, and other medium-voltage power distribution equipment.