Wireless universal transmitter

RF I/O BU


  • Thermoplastic enclosure

  • 4 x Socket M8

  • sWave.NET® wireless technology

  • No wiring and cable laying required

  • Power supply by Lithium battery

  • Output signal can be individually configured at the receiver

  • LBT - Listen before Talk Firmware

  • Variant with SMA connector available for external antenna to increase range

Notes
  • The RF I/O BU may be used in combination with wireless inductive sensor RF IS FL or wireless magnetic sensor RF RC M8 / RF RC M10.

  • Connection of external switching contact (potentialfree contact) with gold contacts possible.

Technical data

Applied standards
EN IEC 60947-5-1, EN 301 489-3, EN IEC 61000-6-2, EN IEC 61000-6-3, EN IEC 63000
Enclosure
ABS, UL 94 HB, RAL 9005
Antenna
internal antenna
Tightening torque
enclosure mounting screws: max. 1.5 Nm
cover screws: max. 1.5 Nm
Degree of protection
IP65 (IEC/EN 60529), only with plugged cables and/or with closed protective caps
Voltage source
lithium battery (replaceable)
Safety class
III
Ambient temperature
–20 °C … +80 °C
Type of installation
mount on an even surface
Mounting position
any
Mounting
screw connection
Connection
4 x socket M8 x 1, 4-pole
Switching thresholds
max. switch-on threshold: 2.05 V,
min. switch-off threshold: 0.95 V
Switch-on delay ton
max. 0.94 ms
Switch-off delay toff
max. 94.7 ms
Actuating time
min. 80 ms
Switching frequency
max. 5 Hz
Standby current
60 µA
Telegram rate
max. 12000 telegrams with repetitions/h
Wireless range
max. 450 m outdoors, max. 40 m indoors
Note
status signal – can be individually configured via radio receiver (delivery state: without status signal)
LBT – can be deactivated via radio receiver (e.g. in conjunction with repeaters)
transmission of battery voltage and switching condition
Go to our different wireless receivers to find corresponding how-to videos.
Wireless approvals
Europe: RED 2014/53/EU
USA: FCC - VPYLBAA0QB1SJ
Canada: IC - 772C-LBAA0QB1SJ
Brazil: on request
Japan: on request

Downloads

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Mounting and wiring instructions – RF I/O

German, English, French, Italian, Portuguese

PDF 2 MB 19.03.2026
Please go to the relevant product pages for additional downloads.

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