Switch Documentation


The Switch is an easy to use, waterproof switch built into a a Blue Robotics penetrator which provides a high-pressure seal for your enclosure.

Important Notes

Always inspect the O-rings before inserting the dial. Any dust, hair, or other particles can cause a leak.

Use plastic tools, NOT steel or other hard tools, to remove the O-rings from the aluminum sealing faces. Hard tools can create scrapes that will compromise sealing ability.


Specification Table

For further information please see the 30-3UL Data Sheet.

Operating Voltage Up to 120 volts AC  
Operating Current Up to 5 A  
Wire Size 22 AWG  
To Turn ON Clockwise/Red  
To Turn OFF Counter-clockwise/Gray  
Maximum Tested Depth (Saltwater) 3,280 ft 1000 m
Maximum Pressure 1430 psi 9,810 kPa
Overall Length 56 mm 2.2 in
Wire Length 155 mm 6.1 in
Thread Size M10x1.5 20 mm threaded  
Recommended Through Hole Size 0.4 in 10-11 mm
Outer Diameter 0.71 in 18 mm
Maximum Wall Thickness 0.51 in 13 mm
Wrench Flats 16 mm
Plug O-ring (2 used) 2mm Wide, 6mm ID, Buna-N
Bolt O-ring (1 used) AS568-013, Buna-N  

Mating Connector: TE Connectivity AMP Connector on Digi-Key

2D Drawing

3D Model

All 3D models are provided in zip archives containing the follow file types:

  • SolidWorks Part (.sldprt)
  • IGES (.igs)
  • STEP (.step)
  • STL (.stl)
Switch Dial SWITCH-M-DIAL-10-A-R1.zip  
Switch Body SWITCH-M-BOLT-10-25-A-R1.zip  
Switch Penetrator Nut PENETRATOR-M-NUT-10-A-R2.zip  


Assemble according to the below assembly steps, and the switch will allow you to turn a circuit on and off inside your watertight enclosure without opening it. When the dial is turned all the way clockwise, or bottomed out, the Switch is ON. Turning the dial counter-clockwise one full turn will turn the Switch OFF.


Step 1: Lubricating the O-rings

Use a small amount of silicone grease on the three O-rings for lubrication and place the two smaller ones in the grooves on the Switch dial and the larger one in the groove of the Switch body.

Step 2: Applying the Sticker

Apply the rotation sticker to the top of the dial.

Step 3: Installation on End Cap

Install the Switch into an endcap and tighten the nut by hand or with a wrench.

Step 4: Installation of the Button

Remove the hex nut then install the button into the end of switch on the dry side and hand tighten.

Step 5: Screwing in the Dial

Screw the dial into the Switch body until the button bottoms out, then back off one turn.

Step 6: Attaching the Wires

Push the wire quick connects onto the button terminals.