NKK Switches – New double-sealed toggle switches are waterproof and dustproof


The new Dual Seal Waterproof M series from NKK Switches is a set of highly reliable, double-layer, waterproof toggle switches.

Dustproof as well as waterproof, the M series is an integrated design with a built-in waterproof boot made of silicone rubber.

Supplied in both single-pole and double- pole configurations, the Dual Seal Waterproof M series has a number of characteristics which distinguish it from other similar products on the market.

These include:
• A high-torque bushing which prevents rotation and separation from the frame during installation
• An anti-rotation design on all non-cylindrical levers
• An interlocked actuator block to prevent switch failure due to biased lever movement
• A stainless-steel body which resists corrosion

The Dual Seal Waterproof M series switch consists of the waterproof boot at the base of the lever and a sturdy nitrile butadiene O-ring on the inside for increased reliability and dust- tight protection. It is IP67-rated according to the provisions of IEC60529, and is tested for resistance to salt spray in accordance with the Mil-STD-810G standard section 509.5.


  • 27 general-purpose I/O lines
  • 32 general-purpose working registers


  • IoT end nodes
  • User interface in home appliances