Solutions
Waterproof Connectors
for industry & harsh environments
Reliable waterproof connectors with protection ratings from IP67 to IP69K – from the M12 standard range to customer-specific cable assemblies.
Understanding IP ratings: IP67, IP68 and IP69K
Waterproof connectors – also referred to as watertight plugs or waterproof cable connections – reliably protect sensitive contacts from moisture, dust and cleaning agents. Choosing the right IP rating according to IEC 60529 is essential.
Temporary immersion
Dust-tight and protected against temporary immersion in water. Typical for outdoor applications, machinery and control cabinets.
Continuous immersion
Protection against continuous immersion under manufacturer-specified conditions. For permanently wet areas and humid environments.
High-pressure & steam jet
Highest water protection – even during high-pressure cleaning with hot water. Typical in food, vehicle and cleaning environments.
The basic principle of a waterproof connection is the combination of a housing seal, a circumferential sealing lip and a locking mechanism (e.g. screw, push-pull or bayonet), which together ensure the required IP rating in the mated state. Unmated connectors generally do not reach the specified IP rating – protective caps help in that case.
Our range of waterproof connectors
From compact M9 and M12 circular connectors to rugged industrial variants: our product area gives you the complete range with technical data, CAD downloads and availability.
Selection guide: what matters with waterproof connectors
The right connector always depends on the specific application. The following criteria help with the initial selection:
Size & series
Common industrial series such as M9, M12 or larger circular connectors – depending on available space and the type of signal transmitted.
Pole count
From 2-pole signal and power connections to multi-pole fieldbus and Ethernet variants.
Current rating
Sized according to the rated current and voltage of the application – including temperature derating.
Locking
Screw, push-pull or bayonet locking – determines mating cycles, assembly time and vibration resistance.
Coding
Common on M12 (A, B, D, X and others): coding prevents mismating and is matched to the signal type.
IP rating
IP67, IP68 or IP69K – depending on humidity, immersion and cleaning conditions in use.
Typical applications & industries
Waterproof connectors are used wherever moisture, dust or cleaning agents can jeopardise electrical connections:
- Industrial automation & machinery (sensors, fieldbus, drives)
- Outdoor and solar installations
- Vehicle construction & commercial vehicles
- Food & beverage industry (IP69K wash-down areas)
- Measurement & control technology
- Rail, water and environmental technology
- Medical & laboratory technology
- HVAC and building technology
Also have a look at our Rugged Components & Solutions – rugged connectors, switches and lighting for particularly demanding applications.
Frequently asked questions about waterproof connectors
Answers to the most common questions about IP ratings, M12 connectors and waterproof cable assemblies.
Find the right connector – we're here to help
Talk to us about your application. We'll recommend the right form factor, IP rating and assembly – with no obligation and a personal touch.
