BX KNX Multifunction Actuator 12CH 16A (12 DIN) BX-MFB12
BX-MFB12 is a multifunction 12-channels actuator, programmable with ETS to perform different tasks like switching loads, open and close shutters and blinds, drive valves operating in PWM and control 2 or 4 pipe fancoil.Each outputs uses bistable relays with 16A maximal load. Block terminals are very wide to insert wires with a section up to 5 mm2.
The relays can be operated manually via a push button mounted on the front of the device, a green LED indicates the switching status of each channel.
The power supply is provided from KNX bus through new tranceiver TPUART2 that provides better performance in terms of switching speed.
The protection class of the package is IP20 and it is designed for installation on DIN 35mm.
Using the actuator to switch loads, all twelve outputs are parametrized individually.
Programmable contacts normally open or normally closed.
Manual operation with push buttons, LEDs indication and status transmission on the KNX bus.
Timer function for stairs light.
Logic functions on single outputs.
Relays status recovery after blackout and programmable startup conditions of the contacts.
The actuator works with pairs of interlocked relays to control shutters and blinds.
The number of interlocked pairs can be set using ETS.
The outputs not intended to control shutters can work as indipendent outputs or fancoil outputs.
Setting available on travel time and travel extra time in seconds, and stop time between two movements in milliseconds.
The channels allocated to fancoil outputs depends on number of pipe of the cooling and heating system, the remaining free outputs can be used as indipendent outputs or shutters outputs.
Ohmic load: 16A
Power supply: via KNX bus
Max voltage: 270VAC
Max inrush current: 170A per 2ms
Operating temperature: 0 – 45 °C
Protection class: IP20
Size (WxHxD): 91x142x62 mm