2026年7月29日
What Is a Wiring Harness in a Car? Key Functions for OEM Equipment Buyers
Learn what a wiring harness in a car is, its components, and how it benefits OEM production. Get...
Detailed Product Information
Technical Data & Reference
Structured parameters, material notes, application context and frequently asked questions for engineering and procurement evaluation.
Competitor & Cross-Reference
- Alternative Type
- Functional Alternative
- Competitor Part Number
- Amphenol MS3106 Series / Hirschmann CA Series 7-Pin equivalents (As a cost-effective, custom-engineered OEM alternative).
- Mates With
- Standard 7-Pin receptacles on Moog, Bosch Rexroth, Parker, and Vickers hydraulic proportional valves and servo-valves.
Functional Alternative: This part provides equivalent performance characteristics as a cost-optimized substitute. Minor design review recommended before adoption.
Technical Specifications
- Connector A:
- 7-Pin Metal Valve Plug
- Connector B:
- Flying Leads or Custom
- Key Position:
- A-Code (Standard)
- Wire Gauge:
- 20 AWG (Standard) / Customizable
- Connection Type:
- Threaded Screw Locking
- Cable Length:
- Fully Customizable (e.g., 1m - 20m)
Material Composition
| Material | Value / Description |
|---|---|
| Housing/Insulation: | PA (Nylon), Black |
| Contacts: | Copper Alloy, Gold-Plated |
| Connector Shell: | Copper Alloy, Nickel-Plated |
| Sealing: | Silicone O-Ring |
| Shielding: | Tinned Copper Braid + Alu Foil |
| Overmolding: | Injection Molded PVC/PUR |
| Conductor: | Stranded Tinned Copper |
| Cable Jacket: | PVC (Standard) / PUR (Oil-Resistant) |
Technical Characteristics
| Characteristic | Value |
|---|---|
| Rated Current: | 10A Max |
| Rated Voltage: | 250V AC/DC |
| Operating Temperature: | -40°C to +80°C (Standard) |
| Flammability Rating: | UL VW-1 |
| Insulation Resistance: | ≥ 100 MΩ |
| Contact Resistance: | ≤ 10 mΩ |
| Durability (Mating Cycles): | ≥ 1000 Cycles |
| Protection Grade: | IP67 (When Mated) |
| Manufacturing Standard: | IPC/WHMA-A-620 Class 2/3 |
| Product Certification: | CE / RoHS Compliant |
Application Scenarios
-
Injection Molding Machinery: Delivers uninterrupted command signals to mold-closing proportional valves, ensuring precise pressure and flow control even in high-temperature, oil-splattered environments.
-
Heavy-Duty CNC Machine Tools: The robust nickel-plated metal shell and IP67 sealing protect critical servo-valve connections from aggressive cutting fluids, metal shavings, and mechanical impact.
-
Mobile Hydraulics & Construction Equipment: Utilizes secure threaded locking to withstand severe shock and constant vibration during the operation of excavators, cranes, and automated earth-moving machinery.
-
Industrial Robotics & Automation: Offers excellent EMI shielding to isolate low-voltage analog control signals from the electrical noise generated by nearby high-power servo drives and frequency inverters.
Frequently Asked Questions
Can the cable jacket withstand synthetic hydraulic fluids and industrial lubricants?
Our standard jacket is robust PVC, which is suitable for many factory environments. However, for direct exposure to hydraulic oils, synthetic lubricants, or cutting fluids, we strongly recommend requesting our PUR (Polyurethane) jacket option for superior chemical and abrasion resistance.
Is this assembly completely waterproof and dustproof?
Yes. When properly mated and locked with the corresponding receptacle, the metal connector utilizes internal silicone sealing to achieve an IP67 protection rating, making it completely dust-tight and protected against temporary water immersion.
What is the Minimum Order Quantity (MOQ) for custom lengths or specific wiring diagrams?
As an OEM factory, we offer highly flexible MOQs to support our B2B partners. We can accommodate prototyping runs and high-volume orders, typically starting at just 100 to 500 units depending on the specific raw materials required for customization.
How do you ensure signal integrity against electromagnetic interference (EMI)?
We use high-coverage tinned copper braiding combined with aluminum foil. More importantly, we ensure 360-degree shield termination directly to the metal connector housing, providing an optimal grounding path to protect sensitive proportional valve signals from industrial noise.
Can I get a drop-in replacement for my existing Rexroth or Moog valve cables?
Absolutely. By providing your current part number or a wiring diagram, our engineering team can cross-reference the specifications and manufacture a functional, cost-effective alternative that perfectly mates with your existing hydraulic equipment.
Overview and Application Notes
Overview: Engineered for demanding industrial fluid power and automation environments, this Custom 7-Pin Metal Hydraulic Proportional Valve Cable Assembly provides robust, interference-free power and signal transmission. Manufactured to strict IPC/WHMA-A-620 standards, it features a heavy-duty nickel-plated metal shell and secure screw-locking mechanism to withstand severe vibration and physical impact. With superior EMI shielding and oil-resistant jacket options, this harness ensures precise control for servo-valves and proportional directional valves. As an OEM-ready factory solution, EDOM Electronics offers fully customizable cable lengths, wire gauges, and connector mappings to serve your specific machinery requirements.
Application Notes:
-
Vibration Resistance: Always torque the threaded metal coupling nut to the specified value to ensure the internal silicone seals are properly compressed, preventing fluid ingress in high-vibration hydraulic systems.
-
EMI Shielding Termination: For sensitive proportional analog signals (e.g., 4-20mA or 0-10V), ensure the tinned copper braid shield is terminated 360-degrees at the metal connector shell for optimal EMC performance.
-
Harsh Environment Routing: While PVC is standard, consider specifying our PUR (Polyurethane) jacket customization for applications requiring high resistance to synthetic hydraulic oils, cutting fluids, and continuous flexing.
-
Pinout Configuration: Ensure alignment with your specific valve manufacturer (e.g., Moog vs. Rexroth), as Pin F and Pin G assignments for supply voltage and command signals may vary.
