English
Reunion's M12 series Industrial waterproof connector family is not merely a component; it is a system-engineered sealing solution purpose-built for the harshest factory-floor realities — daily high-pressure hose-downs with caustic detergents, condensing humidity in food chilling rooms, and airborne abrasive dust in mining conveyors.
Certified to DIN EN 61076-2-101/109/111, this threaded circular platform integrates a dual-barrier sealing architecture: a pre-loaded nitrile O-ring at the mating face, complemented by a compression cable gland that seals against wicking along conductor insulation. The result is verified IP67 protection (1m immersion for 30 minutes) validated not by theoretical material data sheets, but by destructive batch sampling — we randomly select mated pairs from every production lot, submerge them in temperature-controlled water, and perform post-immersion hi-pot testing to detect micro-leakage below 1µA.
The all-metal brass housing with electroless nickel plating provides >48 hours salt-mist resistance (ASTM B117) and integral 360° EMI shielding on shielded variants, ensuring analog 4-20mA loops and Gigabit Ethernet (X-code) signals remain noise-free even adjacent to VFD drives. With contact configurations ranging from 2-pole discrete sensors to 17-pole complex multi-signal assemblies, and coding options spanning A (sensors/actuators), B (PROFIBUS/DeviceNet), C/D/X (Ethernet 10/100/1000 Mbps), and S/L (high-current 12A/16A power), this single connector family replaces at least five separate interconnect styles — simplifying inventory and reducing mis-mating risks on busy assembly lines.
Critically, each contact is machined from brass with selective hard-gold plating (≥0.3µm) over a nickel underlayer, sustaining contact resistance ≤3mΩ through 500+ mating cycles. Field data from automotive body-shop installations show that Reunion's M12 connectors maintain signal integrity below 5mΩ even after 18 months of exposure to welding-spatter and coolant mist — a performance edge we verify through ongoing lifecycle testing in our accredited in-house lab.
We have organized our value proposition around observable, measurable benefits that directly impact your Mean Time Between Failures (MTBF) and total cost of ownership.
| Real-World Feature | Field-Proven Benefit (Experience Data) |
| IP67 with Batch-Level Immersion Testing | We don't "claim" IP67 — we prove it per batch. During our 72-hour accelerated washdown simulation (alkaline detergent pH 9-11, 60°C water, oscillating spray nozzle at 8 bar), zero water ingress was detected across 50 randomly sampled M12 pairs. For customers also using the smaller M8 series Industrial waterproof connector in dense sensor boxes, we offer the same rigorous immersion protocol — ensuring consistent sealing integrity across your entire machine footprint. |
| Torque-Limited Thread with Anti-Cross-Thread Lead-In | Field service engineers often overtighten M12s, damaging O-rings. Our coupling nut features a ramped lead-in thread and visual torque indicator (color band appears at 0.6Nm for A-code). In trials at a German packaging plant, installation time dropped by 22% and O-ring replacement frequency reduced by 60% compared to the previous supplier. |
| PUR Cable with Fluid Resistance | Standard PVC jackets swell in cutting fluids. Reunion's optional PUR jacket withstands mineral oils, synthetic coolants, and isopropanol (tested per IEC 60811-404). A Midwest US automotive tier-1 supplier reported zero cable-swelling failures over 14 months, whereas their prior connectors failed within 6 months. This same PUR material is available across both our M12 and M8 series Industrial waterproof connector cable assemblies, enabling material standardization. |
| Gold-Plated Contacts with 500-Cycle Durability | We cycled A-coded 4-pin M12 connectors under vibration (5g, 10-500Hz) while monitoring contact resistance. After 1,000 mechanical matings, resistance remained below 4.5mΩ — well within DeviceNet specification. For high-frequency mating stations (e.g., robotic tool changers), we recommend our crimp-terminal panel receptacles, which eliminate soldering voids that can create hot spots. |
| 360° Shielding with Drain-Wire Termination | Our D-code and X-code shielded versions include an integral drain wire that makes reliable 360° ground contact even when the cable jacket is stripped unevenly — a common field installation error. This design reduced Ethernet packet errors by 37% in a customer's conveyor sortation system with 15 VFDs in close proximity. |
Values validated under ambient 25°C, except where noted
| Parameter | A-code | B-code | C-code | D-code | X-code | S-code | L-code |
| Primary Application | Sensors, IO-Link, discrete | PROFIBUS, DeviceNet | AC power (motor brakes) | Ethernet 100 Mbps | Gigabit Ethernet (CAT6a) | AC servo power (12A) | DC power distribution (16A) |
| Pin Count | 2 – 17 | 4 – 5 | 3 – 6 | 4 | 8 | 2 – 4 | 4 (large gauge) |
| Current Rating (per contact) | 1.5 – 4A | 4A | 1.5 – 4A | 4A | 0.5A (per pair) | 12A | 16A |
| Voltage Rating | 30 – 250V | 250V | 60 – 250V | 250V | 50V | 250 – 630V | 63V |
| Shielding Option | Optional (foil+braid) | Shielded (standard) | Optional | Shielded (S/FTP) | Shielded (S/FTP) | Shielded | Shielded |
| Mating Cycles | ≥100 times | ||||||
| Operating Temp | -25°C ~ +85°C | ||||||
| Protection (mated) | IP67 verified by actual 1m / 30min immersion test per batch | ||||||
| Salt Spray | 48 hours | ||||||
| Contact Base | Brass with glad plated | ||||||
| Insulator | PA66 | ||||||
| Max Contact R | ≤3mΩ | ||||||
| RoHS / REACH | Full compliance with latest SVHC candidate list | ||||||
Reunion maintains a four-pillar quality system that goes beyond certificate checklists:
| Certification | Application & Verification Evidence |
| ISO 9001:2015 | Quality management — design, production, and after‑sales service. |
| ISO 13485:2016 | Medical device quality management — applicable for M12 used in diagnostic or monitoring equipment. |
| RoHS / REACH / Conflict Minerals | Full disclosure of material sources; CMRT (Conflict Minerals Reporting Template) available per batch. |
| Item | Detail |
| Std. Packaging | Anti-static trays with individual cavity nests (prevents contact damage during transit). Bulk bag options available for non-critical applications. |
| Reel / Tape Packaging | Available for SMT and through-hole panel connectors — 1,000 pcs/reel for automated pick-and-place assembly. |
| Sample Lead Time | 5-7 days (stocked A/D/X codes); custom cable harnesses: 12-15 days. |
| Production Lead Time | 18-22 days for standard orders (≤5,000 pcs). |
| Shipping Terms | EXW (Shenzhen), FCA, FOB (Yantian/Shekou), CIF, DDP — flexible per buyer's forwarder. |
| Warranty | 12 months against manufacturing defects (extended to 24 months for consignment-stock contracts). |
| Technical Support | 24-hr engineering response (including weekends) |
| Inventory Programs | VMI (Vendor-Managed Inventory) with consignment stock at your designated warehouse — available for annual contracts exceeding 50k pcs. |
A: This is the #1 question we receive from quality managers. Here's our transparent answer:
Batch immersion, not occasional type-testing: We randomly pull 5 mated pairs from every production batch (minimum 1 pair per 500 pcs). They are immersed in tap water at 1.0m depth for 30 minutes, with the cable end sealed. After removal, we immediately measure insulation resistance (>100MΩ at 500V DC) and perform dielectric withstand (1.5kV AC for 60s). If any sample fails, the entire batch is quarantined and reworked.
We provide video evidence: Upon request, we email a short video clip of that specific batch's immersion test — so your auditor can see the actual water tank and timestamps.
This same protocol applies to our M8 series Industrial waterproof connector — so whether you use M8 for compact sensors or M12 for fieldbus backbones, the sealing validation standard is identical, giving you consistency across your component portfolio.
A: Yes, with two field-proven precautions:
Sealing is independent of coding — all codes use the same O-ring groove geometry and thread pitch (M12x1), so IP67 performance is uniform. However, we recommend:
- Maintain 10mm minimum spacing between high-current S/L connectors and Ethernet X/D connectors to reduce thermal coupling (S-code contacts can rise 15°C above ambient at 12A).
- Use shielded X-code cables with drain wires grounded to the junction box earth — our shielded versions include a metal backshell that makes continuous 360° contact, preventing EMI from power lines from corrupting GigE frames.
Address
West of 2nd and 3rd Floor, Building B, Zhongjing Zhiyun Science Park, No. 606, Fengtang Avenue, Zhancheng Community, Fuhai Street, Bao 'an District, Shenzhen
Tel
