HT4P Safety Commander™: Transform Tablets into Industrial-Grade HMIs with Enhanced Safety and Control
The IDEC HT4P Safety Commander™ enables safe, ergonomic operation of tablets as industrial HMIs. Designed for manufacturing, robotics, and AGV applications, it features hardwired e-stop, three-position enabling switches, and stable wired LAN communication. Its rugged design supports tablets from 10 to 13 inches, ensuring flexibility without compromising safety. Ideal for replacing traditional teaching pendants or control panels, the HT4P boosts productivity while maintaining operator safety.
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Support for large type tablets
Even large tablets of 10 to 13 inches that are easy to operate can be mounted by the large slide mechanism. High-performance tablets and robust tablets can also be mounted.
Rotary Grip
Rotatable grip allows the tablet position to be changed vertically or horizontally for easy operation. The enabling switch is shaped for easy holding regardless of hand size. The tablet also has a function to prevent accidental rotation due to its own weight.
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Mechanical Switches Can Be Installed
Up to three LB series switches can be installed. Suitable for various applications.
*10 types with mechanical switches are available as standard products.
*Models with LB switches requested by the customer can be delivered.
*Joystick-mounted types available on request.
USB/LAN converter / Built-in USB Power Delivery
Wired LAN provides stable communication unaffected by the environment.
USB charging while communicating eliminates the need to worry about running out of battery power for tablets.


Waterproof connector for Wired LAN, switch contact, and power supply
Connector allows one-touch connection and disconnection of cables, facilitating cable maintenance.
Movable mounting hooks & spacers
Prevents interference with the tablet's power and audio buttons when the tablet is mounted. The tablet can be securely attached according to the size of the tablet.
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Part Names


HT4P Safety Commander™
The HT4P Safety Commander™ is an ergonomic device enabling users to securely hold and protect a human-machine interface (HMI) tablet, while providing power, networking, and hardwired emergency stop (e-stop) and other operator interface devices.

HT4P Safety Commander™ Kit
KIT-HT4P provides the complete offer for customers seeking to evaluate the Safety Commander™ solutions as the potential replacement of teaching pendants or control panels on the factory floor.
Access Resources and Documents Available
Turn Tablets into Safety-Grade Industrial HMI's
Discover the transformative power of the IDEC HT4P Safety Commander™ in our exclusive technical article.
HT4P Safety Commander™
Learn more about how the HT4P Safety Commander™ is designed to meet the unique requirements of your business.
Common Questions
What tablets can be attached to the Safety Commander™?
List of tablets that have been tested on HT4-HP for installation and communication/charging
Please refer to the list there. For tablets not listed, please contact us.
Can be mounted on tablets with a diagonal length of 290 to 380 mm (reduced mounting or 270 mm and up) and a tablet thickness of 23 mm or less. If the thickness exceeds 10 mm, the height can be adjusted using the optional thickness adjustment kit.
Does the USB/LAN converter support Android and iPad?
Depends on the model. Please refer to the list of tablets we have tested in HT4P-HP for the tablets we have tested.
Can you install mechanical switches in-house?
The customer's mechanical switch cannot be installed. This will be handled by our factory.
We offer several types of mechanical switches as made-to-order products, so please choose one of them.
If you require other patterns, please contact us for special products.
Can a joystick be installed?
Our TS series joystick can be attached as a special product. (Padlocks must be purchased by the customer)
How many meters of cable can be accommodated?
Up to 20 meters. As accessories, 5m cables are available as standard products, and 10m, 15m, and 20m cables are also available on a made-to-order basis.
Customers can also prepare their own. Prepare a cable that matches the mating connector and specifications described in the catalog or instruction manual.
How is the LAN wiring? Also, does it have an RJ45 connector?
The accessory cable has a built-in LAN cable.
Two types of this cable are available: one with D-sub 37P ends and one with discrete wires. None of them have RJ45 connectors.
From the cable to the end of the cable, make the necessary modifications according to the specifications of the customer's equipment, or use a commercially available terminal block to RJ45 converter to connect to the equipment.
Can it be used outdoors?
Indoor specifications. Outdoor use is not covered by the warranty.
Can I also use it fixed to the wall?
Wall mount brackets are available as accessories. This fixture can be firmly fixed, and tablet operation can be performed while fixed to the wall if the operation does not involve an enabling SW.