BX-RIO4

The BX-RO4 is an 4-channel DIN-rail-mounted multifunctional actuator for in dependent switching of loads by relay contacts. The switching of the outputs can also be managed via the buttons on the front panel. A green LED indicates the status of the channel.

It features 16 A bi-stable relays with contacts connected directly to the terminals, without phase sharing. The screw terminals can accept cable sections up to 2,5 mm2. The relays used can withstand an inrush current of up to 320 A in the first 2 ms, making them particularly suitable for controlling inductive loads such as fluorescent or neon lamps. The device provides switching functions, status notification, lockout command, forcing, timing, delay, scenarios and management of shutters and blinds. It controls valves with PWM algorithm and can drive fancoil devices (2 or 4 pipes). It also has a set

of logic functions consisting of 16 input communication objects for each channel; they are combinable with OR, AND, XOR and GATE logic operations. With the above-mentioned functions, countless combinations can be configured, and this allows optimizing the use of all out-puts. BX-RO4 is parameterizable by ETS software and its versatility makes it particularly suitable for distributed designing.

Technical data

• Rated relay input voltage: 230 V ac, 50/60 Hz
• Rated relay contact current: 16 A
• Power supply: via KNX bus, 29 V dc SELV
• Bus current consumption: max 12 mA
• Operating temperature: -5 ÷ +45 °C (internal use)
• Connection to the KNX BUS: coupling terminal, 2 pins, d=0,8 mm
• Electrical connections: screw terminal, max. cable cross-section 2.5 mm2 (AWG10)
• Degree of protection: IP20
• Dimensions: 4 DIN modules

KNX functions

•  4 relay outputs for controlling general lights/loads with timing, forcing, blocking, delay functions
• 4 channels for PWM valve control with anti-locking function
• 2 channels for the control of roller shutters/blinds/curtains
• Actuators for a 2- or 4-pipe fan coil, 1 to 3 speeds
• Logic functions
• General functions