The ACTRA MONO 400 from Gebrüder Frei is an ergonomically shaped right-hand control unit designed for the BRAVA modular armrest system used in forklifts, construction machinery, agricultural vehicles, and municipal equipment. It combines fingertip joystick control with thumb-operated auxiliary functions, communicating over CANopen for seamless integration with modern vehicle control architectures. The non-contact Hall-effect sensor technology eliminates mechanical wear, delivering consistent output characteristics across the joystick's service life.

How does the MONO 400 differ from the MONO 300 in thumb control layout?

The defining difference between the two ACTRA MONO variants lies in the thumb control area. The MONO 300 provides 3 auxiliary pushbuttons in the thumb pad, while the MONO 400 replaces one auxiliary button with a dual-axis XENO thumb joystick offering ±30° rotation angle and two analog output signals with X-characteristic response. This additional proportional axis is rated for up to 5 million cycles (IP68-rated, excluding the connector). The fingertip area accommodates up to 4 single-axis joysticks arranged side by side, with interchangeable pushrod caps available in multiple colours and custom laser-engraved symbols to match specific vehicle functions.

What environmental and safety ratings apply to the ACTRA MONO 400?

The electronics are encapsulated and sealed to IP65, while the mechanical housing carries an IP3X rating. The controller operates across a -30°C to +65°C temperature range and accepts a wide 7–65 V supply voltage, covering 12 V, 24 V, and 48 V vehicle electrical systems. EMC compliance is tested to EN 12895:2015-09 with radiated immunity up to 100 V/m per ISO 11452-2. Functional safety is certified to EN ISO 13849 Performance Level d (PL d), meeting the requirements for safety-related control functions on mobile machinery. The unit mounts to the BRAVA armrest via four M5 bolts, with a moulded-on Superseal 6-pin connector for reliable electrical connection in high-vibration environments.