Waterproof Connector: M series (as known as M Connector) is compact and lightweight designed, which is suited to withstand harsh industrial environments while providing reliable data and power transmission to automated machinery. M Connector protects against dirt, water, vibration/shock, and temperature extremes, sealed up to IP68 when mated. Available in 3 different sizes M5: 5mm, M8: 8mm, and M12: 12mm connectors.
M waterproof connectors are offered in a variety of mounting options, gender orientations, and connector coding allowing them to satisfy complex design requirements. They are intermateable with a wide variety of competitive products. M Connectors are available in Panel Mount, Overmolded, Attachable, and Receptacle combined with a diversity of cables. Holin's waterproof connectors: M type is the ideal solution for nearly all markets and applications.
M Connector Existing code:
- M5 A code.
- M8 A code, B code, K code.
- M12 AA code, M12 B code, M12 C code, M12 D code, M12 K code, M12 L code, M12 M code, M12 P code, M12 S code, M12 T code, M12 X code.
- M23
Existing number of pins of Holin's Waterproof Connectors:
2 pin connector, 3 pin connector, 4 pin connector, 5 pin connector, 6 pin connector, 7 pin connector, 8 pin connector, 9 pin connector, 10 pin connector, 11 pin connector, 12 pin connector, 13 pin connector, 14 pin connector, 15 pin connector, 16 pin connector, 17 pin connector.
M Waterproof Connectors Applications
- Automation
- Industrial computer
- Wireless outdoor access point
- Testing and measurement equipment
- Electric bike
- Network camera
- Military computer
- Metal detector
- Advanced metering infrastructure, etc

Size | Coding |
M5 | A |
M8 | A, B, K |
M12 | A, B, C, D, K, L, M, P, S, T, X |
M23 | --- |
Contact : Brass,
Gold Plated.Connector Insert :
Nylon + GF.Connector Housing :
Nylon + GF or Brass, Nickel Plated.Screw Nut :
Nylon +GF or Brass, Nickel Plated.Cable :
PVC, PU or Customized.Connector Size | M5 | M8 | M12 |
IEC Standard No. | 61076-2-105. | 61076-2-104 |
A, B, C, D, P code : 61076-2-101 X coding : 61076-2-109 |
IP Rating (IEC60529) | 66 to 68 | 65 to 68 | 66 to 68 |
M12 Signal code | ||||||
Code | A Code | B Code | C Code | D Code | P Code | X Code |
Shape of Connector | ![]() |
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Number of Poles | 2, 3, 4, 5, 6, 8, 12 | 3, 4, 5 | 3, 4, 5, 6 | 3, 4, 5 | 3, 4, 5 | 8 |
Currenting Rating | 4A, 2A, 1A | 5A | 4A, 2A | 4A | 4A | 0.5A |
IP Rating | IP66~68 |
M12 Power code | |||||
Code | K Code | L Code | M Code | S Code | T Code |
Shape of Connector | ![]() |
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Number of Poles | 3, 4, 5 | 3, 4, 5 | 3, 4, 5, 6 | 3, 4 | 2, 3, 4 |
Currenting Rating | 12A | 12A | 8A | 12A | 12A |
IP Rating | IP66~68 |
Coding | A Coding | B Coding | K Coding | |||
Shape of Connector | ![]() |
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Number of Poles | 2, 3, 4, 5, 6 | 5 | 2, 3, 4, 5, 6 | |||
Currenting Rating | 3A, 1.5A | 3A | 3A, 1.5A | |||
IP Rating | IP66~68 |
Coding | A Coding | |||||
Shape of Connector | ![]() |
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Number of Poles | 3, 4 | |||||
Currenting Rating | 1A | |||||
IP Rating | IP66~67 |