CHT4 Series Capacitive Push Buttons

The CHT4 Series Capacitive Push Buttons are designed for applications requiring a large operating surface, high visibility and maximum user accessibility. With a touch surface diameter of 63 mm, the series provides intuitive operation without mechanical pressure and is particularly suitable for public transportation systems, building technology and industrial automation.

Depending on the application, the CHT4 series is available as a sensor element for integration into robust metal housings, as well as complete push-button solutions for screw mounting. Variants are available with anodized aluminum housings or glass-fiber-reinforced polycarbonate cover rings.

For passenger transportation applications, CHT4 switches are widely used as door opening buttons. Accessibility-focused models designed according to TSI-PRM requirements include Braille markings, raised pictograms, visual feedback through 16 LEDs, acoustic signaling and vibration feedback to support users with reduced mobility.

The sensors are completely sealed in cast resin, providing IP69K protection against water, oil and harsh environmental influences. Their robust construction ensures reliable operation and a service life exceeding 100 million operating cycles.

Key Features

• Large 63 mm touch operating surface
• Capacitive touch control
• No mechanical pressure required
• Visual feedback via 16 LEDs
• Acoustic feedback via integrated beeper
• Tactile feedback via vibration
• Braille markings and raised pictograms
• Accessibility-focused design
• TSI-PRM certified variants available
• Shock-resistant construction
• 100% water-proof and oil-proof
• IP69K protection
• Sensor completely sealed in cast resin
• More than 100 million operating cycles
• Suitable for transportation applications
• Multiple mounting options

Product Variants

CHT4-0 (Sensor Element)

• Sensor element for installation in robust anodized aluminum housings
• Total diameter: Ø 63 mm
• Sensor element height: 9.7 mm

Applications

• Building Technology
• Industrial Automation
• Traffic & Transport

CHT4-2

• Version for screw mounting
• Total diameter: Ø 100 mm
• Height: 10 mm
• V-mounting
• Mounting hole: Ø 27–60 mm

Applications

• Building Technology
• Traffic & Transport
• Industrial Automation

Applications

• Traffic & Transport
• Building Technology
• Industrial Automation
• Door Opening Systems
• Emergency Call Columns
• Information Columns
• Railway Stations
• Bus Stations
• Taxi Stands