IP68 Quick Splice Electrical Wire Crimp Connectors M16 Screw Lock 9 Pin Waterproof Connector
The M16 Board-End Connector (also called M16 panel-mount receptacle / M16 flange socket / M16 PCB-mount circular connector) is a 16 mm-class threaded circular interface that brings field-side power and signal through the enclosure wall directly onto the control board. It uses an M16×1.0 or M18×0.75 panel thread, an O-ring face seal, and a rear tail terminated as 180°/90° PCB DIP pins, solder cups, or flying leads.
This solution provides one coded, IP67/IP68-sealed landing point instead of loose wires through a PG gland plus an internal terminal block. It follows IEC 61076-2-106 / IEC 60130-9 standards, intermates with standard M16 field plugs (A/B coded), and sits between M12 (sensor-grade, ≤4 A) and M20 (≥20 A) in current capability—up to 10 A per contact at 300 V on 2-3 pin power builds.
- Integrated Sealed Solution: Panel O-ring + threaded lock provide IP67 (IP68/IP69K optional) protection; rear tail connects directly to PCB—eliminating flying leads, internal junction boxes, and wiring errors
- High Current Capacity: Up to 10 A / 300 V in compact 16-mm footprint—covers 24 VDC aux buses, sensor clusters, encoder + power combinations, and small AC/DC motor feeds
- Secure Coding System: A-code (power/sensor), B-code (PROFIBUS/fieldbus) with keyed keyways prevent incorrect mating and reversal of connections
- Flexible Mounting Options: Front/rear/flange mounting with straight/90° PCB configurations to suit various enclosure designs and board layouts
- Cost Effective: Single component replaces panel gland + internal terminal block + strain relief + fly-wire—reducing BOM complexity and assembly time
- Field Serviceable: Unscrew the M16 field plug while the board-end receptacle remains bolted—enabling PCB replacement without cutting the external cordset
| Parameter | Specification |
|---|---|
| Standard | IEC 61076-2-106 / IEC 60130-9 |
| Coupling / Panel Thread | M16×1.0 nut / M18×0.75 panel thread |
| Rated Current | 10 A (2/3P), 6 A (4P), 5 A (5-8P), 3 A (12-16P), 1 A (24P) |
| Rated Voltage | 300 V (2-4P), 125 V (5-7P), 60 V (8-12P), 30 V (14-24P) |
| Contact Resistance | ≤ 5 mΩ |
| Insulation Resistance | ≥ 100 MΩ @ 500 V DC |
| Withstand Voltage | 1500 V AC / 1 min |
| Protection Rating | IP67 mated (IP68/IP69K optional) |
| Operating Temperature | -40 °C to +80/+85/+105 °C (build dependent) |
| Mating Cycles | ≥ 500 (standard) / 600+ (premium) |
| Certifications | CE, RoHS, REACH, UL1977 (some SKUs) |
- vs M12 board-end: +150% current capacity (10 A vs 4 A), up to 24 pins, larger cable OD
- vs PG gland + terminal block: Coded keying, sealed face, PCB-direct tail, 50% fewer internal parts
- vs D-sub / RJ45: M16 threaded lock survives vibration, hose-down, oil mist; B-code carries PROFIBUS natively
- vs pre-wired feed-thru: Flange PCB version integrates with SMT assembly—no hand-wiring required
Ideal for: 24 VDC sensor power rows, valve island headers, IO-Link master ports, encoder combinations, PROFIBUS B-code interfaces, CANopen, RS-485 faceplate ports, small AC/DC motor auxiliary power, streetlight controllers, solar combiner panels, cobot wrist tool-flange signals, and portable instrumentation.
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