In modern airports, hospitals, shopping malls, and railway stations, accessible restrooms are no longer just standard sanitary facilities. They are designed to accommodate elderly users, people with disabilities, pregnant women, young children, and many other groups with diverse accessibility needs. To ensure these spaces are truly safe and easy to use, the door control system is just as important as the automatic door itself. This is why NABCO developed the NABCO HDS-4P automatic door switch specifically for accessible restrooms. The system stands out with its user guidance functions through indicator lights, voice prompts, and a user-friendly design based on the principles of Universal Design.
What is the NABCO HDS-4P automatic door switch?
The NABCO HDS-4P automatic door switch (Push Button Switch) is an automatic door control system designed for accessible restrooms. It was developed by NABCO to improve accessibility for all users, especially people with disabilities, elderly individuals, and those with limited mobility.
The product is an upgraded version of the HDS-4 and received Japan’s prestigious Good Design Award for its user-centered improvements that address real-world accessibility requirements.
Among NABCO accessories for automatic door systems, the NABCO HDS-4P automatic door switch is recognized as one of the most innovative solutions thanks to its strong commitment to Universal Design principles.
What makes the NABCO HDS-4P different?
Intelligent illuminated guidance system
One of the most distinctive features of the HDS-4P is its step-by-step user guidance. After each operation, the next required function button automatically illuminates, clearly indicating what action should be taken next. Users do not need to read instructions or memorize operating procedures.
For first-time users and facilities with high visitor traffic, this feature significantly reduces operational confusion and user errors.
Voice guidance with multilingual support
In addition to visual indicators, the HDS-4P offers optional voice guidance in four languages: English, Japanese, Chinese and Korean. Every operation is confirmed with an audio notification, allowing users to verify that their command has been successfully executed.
This makes the system particularly suitable for airports, international railway stations, hospitals, and facilities that frequently welcome international visitors.
User-friendly design for visually impaired and color-blind users
The function buttons feature raised surfaces that can be identified through touch, enabling visually impaired users to operate the system more easily. NABCO also combines black-and-white contrast with intuitive symbols instead of relying solely on color-coded indicators. This improves visibility and usability for users with color vision deficiencies or color blindness.
This design approach clearly reflects NABCO’s commitment to Universal Design.
Large buttons for easy operation
The NABCO HDS-4P automatic door switch features oversized buttons with a diameter of up to 70 mm and an operating force of only approximately 5N. Users can activate the buttons using their fingers, elbows, or the back of their hands, making the system particularly suitable for: Wheelchair users, elderly individuals, people with limited mobility.
Flexible design for various installation environments
Beyond accessibility benefits, the HDS-4P is optimized for practical installation. Each switch module measures 100 × 100 mm and can be installed either vertically or horizontally, depending on project requirements.
This flexibility allows the system to be seamlessly integrated into different accessible restroom layouts while maintaining aesthetics, visibility, and ease of use.
Emergency door release function
A dedicated emergency door release mechanism is installed discreetly behind the switch panel to prevent accidental activation. This design enhances safety in accessible restrooms, particularly in hospitals, airports, and public facilities where user assistance may occasionally be required.
Occupancy warning for extended restroom use
This is a feature rarely found in conventional automatic door switches. Approximately 30 minutes after the restroom is occupied, the OCCUPIED indicator begins flashing as a notification. If assistance or inspection becomes necessary, authorized personnel outside the restroom can use the OPEN button according to the predefined operating procedure.
This feature is particularly valuable for elderly users, patients, and people with disabilities using accessible restrooms in public facilities.
Video introduction of the NABCO HDS-4P automatic door switch for accessible restrooms
Simple and intuitive operating procedure
The entire operating process is guided through indicator lights and voice prompts:
- Press OPEN to open the door.
- After entering, the CLOSE button illuminates and flashes.
- Press CLOSE to close the door.
- The system switches to OCCUPIED/LOCKED mode.
- When finished, press OPEN to unlock and open the door.
- The door closes automatically and returns to standby mode.
In the event of a power failure, both the motor and electric lock are released, allowing the door to be opened manually with ease.
Applications of the NABCO HDS-4P
Thanks to its accessibility-focused design, the NABCO HDS-4P automatic door switch is widely used in:
- Hospitals and healthcare facilities
- Airports
- Railway stations
- Shopping malls
- Hotels
- Office buildings
- Schools
- Public facilities
- Accessible restrooms for people with disabilities
Installing the HDS-4P not only improves the user experience but also helps facilities comply with increasingly important accessibility standards in modern building design.
Why is the NABCO HDS-4P highly regarded?
The greatest value of the NABCO HDS-4P automatic door switch lies not simply in opening and closing doors, but in supporting users throughout the entire restroom experience. Through illuminated guidance, voice assistance, intuitive controls, and accessibility-focused design, the HDS-4P makes accessible restrooms easier, safer, and more convenient for everyone.
| Conventional switch | NABCO HDS-4P |
| Door open/close only | Step-by-step user guidance |
| No operational feedback | Visual and audio confirmation |
| Limited accessibility support | Universal Design-based design |
| No multilingual support | Voice guidance in multiple languages |
| No emergency assistance features | Occupancy warning after 30 minutes |
| Users must learn procedures independently | Self-guided intuitive operation |
These advantages have made the NABCO HDS-4P automatic door switch a preferred solution for projects requiring advanced accessibility standards and enhanced user experiences.
>>> See more: Automatic doors for people with disabilities: An accessible solution for wheelchair users
Sonha Auto provides NABCO HDS-4P solutions in Vietnam
As a trusted provider of NABCO automatic door solutions in Vietnam, Sonha Auto supplies and consults on automatic door systems, hospital doors, operating room doors, and genuine NABCO accessories tailored to the requirements of different building types.
With extensive experience delivering projects for hospitals, airports, shopping malls, and public facilities nationwide, Sonha Auto is ready to provide professional consultation on the NABCO HDS-4P automatic door switch for accessible restroom applications.
Contact Sonha Auto for expert advice on the NABCO HDS-4P automatic door switch and automatic door systems for accessible restrooms designed according to modern Universal Design standards.
