BX KNX Multifunction Actuator 4CH 16A (4 DIN) BX-MFB04
BX-MFB04 is a multifunction 4-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-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 four 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 by ETS parameters configuration.
Setting available on travel time and travel extra time in seconds, and stop time between two movements in milliseconds.
The actuator works with all 4 outputs to control fancoil.
The first three channels are interlocked and are used to drive the speed of the fans, the 4th channel drives the delivery valve.
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): 91x72x62 mm