PWTR4 embodies an advanced CANbus keypad, featuring a rotary encoder and robust P67 protection. The 4 quick-select buttons seamlessly complement the functionality of the pushable rotary encoder, which is also available in a joystick version (PWTR4-J). This combination provides precise and intuitive control of onboard displays, putting everything at your fingertips. Customization is tailored to your needs, offering a wide range of options to make your PWTR4 truly unique. You can personalize the rubber artwork, LED color of each button, and backlighting, and even have the option to incorporate a custom logo on the knob. PWTR4 is available with both CANopen and J1939 protocols to suit your specific requirements.



CAN Keypad Addresses

You are able to assign any valid CAN address to the keypad.

CANopen Communication Protoco

Fully compliant with Device Profile 401d.

J1939 Address Claim Transmission

Keypads no longer have to be pre-programmed to a specific address. This enables customers that work in applications in the field without access to a GUI to use any replacement keypad on-hand. The keypad can be configured to automatically announce its address and accept a new address assignment as appropriate.

Smart LED Management

Each light spot consists of three different colored LEDs (RGB). In this way it is possible to independently adjust color and intensity gradient of each light spot by simply changing the intensity of individual LEDs.

Event Status Transmission

The keypad can send messages to the BUS indicating a button press event or a button release event has occurred. The event that triggers the message can also be caused by the movement of the joystick or the rotation of the encoder.

Periodic Status Transmission

The keypad sends a continuous broadcast of messages, indicating the status of each button, as well as the positions of the joystick and the encoder at that instance. The frequency of these messages can be adjusted in a wide range.

Periodic Heartbeat

The keypad sends a continuous broadcast of messages indicating it is functioning correctly. The frequency of these messages can be adjusted in a wide range.


  • High intensity led status indicators

  • Multicolor LED backlight

  • RGB LED indicators

  • Event status transmission

  • Periodic status transmission

  • Flush mount design

  • Vertical or horizontal mount

  • Protected from inverted polarity

  • Encoder with pushbutton

  • Periodic Heartbeat

  • LED acknowledgement

  • CANopen and J1939 communication protocol

  • Available with or without joystick function


  • Custom laser etched icons

  • Anodized color options for the knob

  • Custom knob shape

  • Custom logo on the knob



Supply Voltage 12-24Vdc Nominal (8-32VDC)
Standby Current <50 mA
Communication BUS CANopen, J1939


Connector Deutsch DT04-4P
Switch Life 3 million operations
Encoder pushbutton life 1 million operations min.
Encoder rotation life 1 million operations min
Mounting Studs #10-32 Steel
Keypad Silicone rubber with polyurethane hardcoat
PC Board 1,6mm thick, Nema Grade FR-4, double clad with 1oz copper
Operating Temperature -40°C to +70°C
Storage Temperature -40°C to +85°C
UV Protection UVB 400 hours
Salt Spray Per ASTMB117
Chemical Resistance Deet, Engine Cleaner, Isopropyl Alcohol, Suntan Lotion, Multi-Purpose Cleaner, Orange Citrus Cleaner
Ingress protection Rating IP67
Weight Without Joystic 190 gr – With Joystic 200 gr


Activation force Without Joystic N/A – With Joystic 5.5±3.5N (560±350gf)
Max. angle Without Joystic N/A – With Joystic 6°
Operational life Without Joystic N/A – With Joystic 500.000 cycles min.

Technical schemes