Heavy Duty Connector Manufacturer — HDC for Industrial Power, Signal & Hybrid Cabling
Verchil is a specialized heavy duty connector (HDC) manufacturer producing rectangular industrial connectors compatible with Harting, ILME, and Weidmüller standards.
Engineered for the harshest industrial environments, every Verchil HDC features a zinc die-cast aluminum housing with powder-coated RAL 7037 grey finish, stainless steel locking levers, NBR sealing gaskets rated −40°C to +125°C, UL 94 V0 flame retardancy, and IP65 protection per DIN EN 60529 when fully mated.
Trusted by industrial automation OEMs, robotics integrators, rail and transit manufacturers, wind power equipment builders, and CNC machinery brands across 70+ countries, Verchil delivers Harting-cross-reference compatibility, complete hood and base options (top entry / side entry / straight / angled), and full OEM/ODM customization on insert configurations and branded markings.
Explore Our Heavy Duty Connector Series
HDC-HA Series
Compact entry-level HDC for low-density power and signal applications. Frame sizes H3A, H10A, H16A, H32A. Insert pin count 3–32. Ideal for small machinery, control panels, and space-constrained installations.
HDC-HQ Series
Reduced-height HDC designed for low-clearance cabinet installations. Same Harting cross-reference footprint as HA but with optimized hood depth. Common in compact automation cells and mobile equipment.
HDC-HE Series
The most widely deployed HDC series — frame sizes H6B, H10B, H16B, H24B, H32B, H48B. Insert pin count 6–48, current 16A per pin. Industry default for general industrial machinery, conveyors, and packaging equipment.
HDC-HEE Series
Increased pin count within the same H-size frame as HE — roughly 2× the contacts per frame. Used where signal-heavy machinery or robotics need many low-current paths through one connector body.
HDC-HD Series
Higher pin density with stronger contact rating than HEE — ideal for hybrid power + signal applications in industrial robots and CNC machining centers.
HDC-HDD Series
The highest pin count per frame in the Verchil range — up to 128 pins in an H48 frame. Specified for complex robotics, automated test equipment, and instrumentation cabinets where every channel matters.
HDC-HSB Series
Large contact inserts rated 35A per pin (vs 16A standard). Used for motor connections, heating circuits, and power distribution where a single connector must carry significant current.
HDC-HK Series
Modular frame system that accepts mixed inserts — power, signal, Ethernet (CAT5/CAT6), pneumatic, and fiber — within a single connector body. The flagship solution for modern Industry 4.0 cabling.
How to Build a Complete Heavy Duty Connector Part Number
A complete heavy duty connector configuration is not only one part number. Most projects require a matched hood, base, insert, contacts and cable gland.
| Step | Part | Example |
|---|---|---|
| 1 | Choose frame size | H10B / H16B / H24B |
| 2 | Choose hood type | Side entry, top entry, high construction |
| 3 | Choose base type | Panel base, surface base, bulkhead base |
| 4 | Choose insert | HA, HE, HEE, HD, HDD, HSB, HK |
| 5 | Choose contacts and termination | Screw, crimp, spring cage, axial screw |
| 6 | Choose cable gland | Match cable outer diameter and IP requirement |
Send the required current, voltage, pole count, cable diameter and installation environment to Verchil for a matched HDC configuration.
Heavy Duty Connector Hood and Base HA Series
HDC-H3A-BK-1L
HDC-H3A-BK-1L-SE
HDC-H3A-SE-2B
HDC-H3A-SF-1L
HDC-H3A-TE-2B
HDC-H10A-BK-1L
HDC-H10A-SE-2B
HDC-H10A-SEH-2B
HDC-H10A-SF-1L-CV
HDC-H10A-TE-2B
HDC-H10A-THE-2B
HDC-H16A-BK-1L-CV
HDC-H16A-SE-2B
HDC-H16A-SEH-2B
HDC-H16A-SF-1L-CV
HDC-H16A-TE-2B
HDC-H16A-TEH-2B
HDC-H32A-BK-2L
HDC-H32A-SEH-4B
HDC-H32A-SF-2L
HDC-H32A-TEH-4B
Heavy Duty Connector Hood and Base HB Series
HDC-H6B-BK-1L
HDC-H6B-CCT-1L
HDC-H6B-CCTH-1L
HDC-H6B-SE-2B
HDC-H6B-SEH-2B
HDC-H6B-SF-1L-CV
HDC-H6B-SFH-1L-CV
HDC-H6B-TE-2B
HDC-H6B-TEH-2B
HDC-H10B-BK-2L
HDC-H10B-CCT-2L
HDC-H10B-CCTH-2L
HDC-H10B-SE-4B
HDC-H10B-SEH-4B
HDC-H10B-SF-2L
HDC-H10B-SFH-2L
HDC-H10B-TE-4B
HDC-H10B-TEH-4B
HDC-H16B-BK-2L
HDC-H16B-CCT-2L
HDC-H16B-CCTH-2L
HDC-H16B-SE-4B
HDC-H16B-SEH-4B
HDC-H16B-SF-2L
HDC-H16B-SFH-2L
HDC-H16B-TE-4B
HDC-H16B-TEH-4B
HDC-H24B-BK-2L
HDC-H24B-CCT-2L
HDC-H24B-CCT-2L
HDC-H24B-SE-4B
HDC-H24B-SEH-4B
HDC-H24B-SF-2L
HDC-H24B-SFH-2L
HDC-H24B-TE-4B
HDC-H24B-TEH-4B
HDC-H32B-BK-2L
HDC-H32B-CCT-2L
HDC-H32B-SE-4B
HDC-H32B-SF-2L
HDC-H32B-TE-4B
HDC-H48B-BK-1L
HDC-H48B-SE-2B
HDC-H48B-SF-1L
HDC-H48B-SF-1L-CV
HDC-H48B-TE-2B
The housing of this heavy-duty connector is designed for powerful industrial applications and is characterized by powder coating surface treatment based on zinc die-casting materials to enhance corrosion resistance and durability.
It is available in standard grey colours(RAL 7037) in line with ordinary industrial aesthetics.
The locking mechanism adopts a lever-type design, and the metal elastic compression element is made of stainless steel, which ensures a safe and reliable matching cycle under harsh conditions.
The sealing of the cover and shell is provided by NBR gasket, which has excellent oil resistance, fuel resistance and environmental pollutant resistance.
The connector operates in a wide temperature range of -40°C to + 125°C and is suitable for extreme thermal environments.
According to the UL 94 standard, its flammability grade reaches V0, indicating that it has self-extinguishing and improves fire safety.
In addition, when coupled, it provides IP65 protection in line with DIN EN 60 529 to prevent dust entry and low-pressure water jets in any direction.
What Is a Heavy Duty Connector (HDC)?
HDC stands for heavy duty connector. As of 2026, an HDC is a rectangular industrial connector—hood, base, insert, and contacts in a single frame—that carries power, signal, and data through one mating in harsh environments. The applicable safety standard is IEC 61984, which covers connectors rated above 50 V up to 1000 V at up to 125 A per contact. For full selection criteria and best practices, see our Heavy-Duty Connector Guide.
Anatomy of a Complete Heavy Duty Connector Set
A heavy duty connector is purchased as a matched system, not as one isolated part. Use the table below to confirm which parts are needed before requesting a quote.
| Part | Function | What to Confirm Before Ordering |
|---|---|---|
| Hood | Cable-side outer shell | Frame size, top-entry or side-entry cable direction, high or low construction |
| Base / Housing | Panel-side or surface-mounted counterpart | Panel mounting style, locking type, cover requirement |
| Insert | Holds power, signal or data contacts | Series type, pole count, current rating, voltage rating |
| Contacts | Electrical terminals for conductors | Male/female side, conductor size, plating, termination method |
| Cable Gland | Seals and supports the cable entry | Cable outer diameter, IP requirement, material |
| Cover / Accessory | Protects the connector when unmated | Dust cover, protection cap, locking accessory |
For detailed hood, base, frame size and insert structure, see the Industrial Rectangular Connectors Guide.
HDC Frame Size Quick Filter
Use the frame size to narrow the hood, base and insert combination. Final pin count, current rating and termination method should be confirmed from the selected insert datasheet.
| Frame Size | Best For | Typical Configuration Question | Next Step |
|---|---|---|---|
| H3A | Compact equipment and small control wiring | Does the project need a small HDC set with limited poles? | Request H3A configuration |
| H6B / H10B | Standard machinery, control cabinets and automation panels | How many power and signal contacts are required? | Request H6B/H10B configuration |
| H16B / H24B | Higher pole count or mixed power / signal systems | Does the connector need modular inserts or multiple cable entries? | Request H16B/H24B configuration |
| H32B / H48B | Larger machine interfaces and multi-circuit panels | Is there enough panel space and cable routing clearance? | Request large-frame HDC quote |
For detailed frame-size logic, hood/base combinations and modular insert layout, read the Industrial Rectangular Connectors Guide.
Heavy Duty Connector vs Other Industrial Connectors
| Connector Type | Best Use | When to Choose Verchil HDC |
|---|---|---|
| Heavy Duty Connector | Industrial panels, machinery, modular power/signal/data wiring | Choose when the project needs hood, base, insert and cable gland as a rugged set. |
| Circular Connector | Compact cable-to-cable or sensor-style connection | Use HDC when rectangular panel mounting and modular inserts are required. |
| Standard Plug / Terminal Block | Simple indoor wiring | Use HDC when quick disconnection, enclosure protection or modular maintenance is needed. |
Heavy Duty Connector RFQ Checklist
To recommend the correct HDC configuration, Verchil needs the following details:
| Information Needed | Example |
|---|---|
| Application | Automation equipment, control cabinet, rail, outdoor machinery, stage lighting |
| Frame size | H3A, H6B, H10B, H16B, H24B, H32B, H48B, or unknown |
| Series / insert type | HA, HQ, HE, HEE, HD, HDD, HSB, HK |
| Rated current and voltage | Confirm by system requirement and insert datasheet |
| Number of contacts | Power poles, signal contacts, PE, data modules |
| Termination method | Screw, crimp, spring cage, axial screw |
| Cable outer diameter | Needed for cable gland selection |
| IP requirement | Indoor, outdoor, washdown, temporary immersion |
| Mounting style | Panel base, surface base, cable-to-cable, top-entry hood, side-entry hood |
| Documents required | Datasheet, drawing, test report, RoHS, CE, UL if available |
Send your HDC requirements to Verchil for a matched hood, base, insert, contact and cable gland recommendation.
Where Heavy Duty Connectors Are Used
Industrial Automation
Control cabinets, modular machinery, robotics and production lines that need quick maintenance and stable power/signal wiring.View automation solutionsOutdoor Equipment
Equipment exposed to dust, rain, vibration or cable movement where sealed hood and base assemblies are required.View outdoor equipment solutionsStage Lighting and LED Displays
Temporary or semi-permanent systems that require reliable plug-in maintenance and organized multi-core wiring.View stage lighting solutions
Why Source Heavy Duty Connectors from Verchil
Direct Harting / ILME / Weidmüller cross-reference compatibility — Every Verchil HDC dimension, mounting hole pattern, and insert pinout matches the corresponding Harting Han series, ILME Squich, and Weidmüller HDC standards.
18+ years of connector manufacturing — Vertically integrated 3,000 m² factory in Wenzhou, with in-house die-casting, machining, insert molding, electroplating, and assembly.
Full lifecycle testing — Every batch undergoes vibration testing (IEC 60068-2-6), IP65 ingress testing per DIN EN 60529, contact resistance measurement, mating force calibration, and pull-out force testing. Test reports are provided with every shipment.
Custom insert layouts welcome — Beyond standard insert configurations, we manufacture custom layouts (mixed power + signal + Ethernet in non-standard ratios) with MOQ from 500 pieces. Tooling lead time 25–35 days.
Stock + Made-to-Order — Common HA, HB, HE series ship from stock in 7 days. Custom configurations and HK modular assemblies ship in 25–35 days.
Compliance — All standard products comply with CE, RoHS, UL 94 V0 flammability rating, and DIN EN 60529 IP rating standards. Marine, rail (EN 45545), and explosion-proof certifications available on request.
Frequently Asked Questions
Which HDC series should I choose?
HA and HQ series are suitable for compact wiring. HE and HEE series are common for standard industrial power and signal wiring. HD and HDD series are used for higher contact density, while HSB and HK series are used for higher-current or hybrid configurations.
Can Verchil customize heavy duty connectors?
OEM/ODM support can include housing color, logo, cable entry direction, insert configuration, contact layout, cable assembly and packaging. Final availability depends on the order quantity and technical requirements.
What information is needed for a quote?
Send the frame size, series, pole count, current and voltage rating, cable outer diameter, termination method, IP requirement and application environment. If the part number is unknown, Verchil can recommend a matched configuration.
Can I request datasheets or drawings before ordering?
Yes. Verchil can provide available datasheets, drawings and documentation for standard HDC series. For custom configurations, drawings may need to be confirmed after the technical requirements are reviewed.
What does HDC stand for?
HDC stands for heavy duty connector. It is the standard industry abbreviation for the rectangular, modular connectors that carry power, signal, and data in one housing for robotics, automation, rail, and outdoor power. Manufacturers such as TE Connectivity and Weidmüller list the same product family under the "HDC" label, and the connectors are built to the IEC 61984 safety standard.
Is "HDC" the same as a heavy duty connector?
Yes—"HDC" is simply the abbreviation, so the two terms are interchangeable. One nuance worth knowing: some makers (Weidmüller, for example) also use "HDC" as the brand name of their heavy-duty connector line and inserts—HDC HE, HDC HA, HDC HQ. Verchil's HA/HQ/HE series follow the same Han B frame convention, so "HDC" on this site means the generic heavy duty connector category, cross-referenced to those brands rather than identical to any single one. See our Harting & ILME cross-reference for exactly where the interchange holds and where it stops.
Heavy Duty Connector Technical Guides
Use these guides when you need more technical detail before choosing a Verchil HDC configuration:
- Heavy Duty Connector Selection Guide — general HDC selection logic
- Industrial Rectangular Connectors Guide — hood, base, frame size and insert structure
- Heavy Duty Wire Connector Guide — screw, crimp, spring cage and wire gauge selection
- Heavy Duty Waterproof Connectors Guide — IP rating, gasket and cable gland sealing
- Heavy Duty Power Connectors Guide — high-current, BESS and power distribution applications
