Wireless receiver

RF Rx SW915B-4W 24 VAC/DC

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Product features

Wireless
  • sWave® wireless technology

  • 4 potential-free relay outputs

  • 4 change-over contacts

  • Transmitter/receiver assignment by teaching mode

  • LEDs for indication of switching state

  • SMA reverse plug-in connector for external antenna

Notes

  • No compatibility between SW915B and SW915.

  • External antenna always required for optimum range and to meet the licensing requirements for radio communications.

Technical data

Applied standards
EN 300 220-2, EN 301 489-3, EN 60947-5-1, EN IEC 61000-6-2
Enclosure
polycarbonate, RAL 7035
Degree of protection
IP20 (IEC/EN 60529)
Mounting
DIN rail mounting
Connection
terminals with CAGE CLAMP WAGO Series 236: 0.08 … 2.5 mm² / AWG 28-12, AWG 12: THHN, THWN, stripping length 5 … 6 mm / 0.22 in
Outputs
4 change-over contacts (relays)
Rated operating current/voltage Ie/Ue
max. 0.09 A/24 VDC -15 % … +10 %; max. 0.15 A/24 VAC -15 % … +10 %;
output contacts: 6 A/250 VAC; 2 A/24 VDC
Utilisation category
outputs: AC-15 (at 10 % Ie); DC-13
Rated insulation voltage Ui
250 VAC
Rated impulse withstand voltage Uimp
2.5 kV
Display
1 x green LED: ready for operation,
4 x orange LED: signalling of switching state
Recovery time
max. 24 ms (measured from the start of a radio telegram to the end of the relay contact bounce time, with 1 x repetition of the radio telegram due to transmission disturbance)
Teachable transmitters
40
Degree of pollution
2
Ambient temperature
0 °C … +55 °C
Storage and shipping temperature
–25 °C … +85 °C
Note
Inductive loads (contactors, relays etc.) are to be suppressed by suitable circuitry.
Allows configuration of LBT and status signal of the transmitters

General

Frequency
914.2 MHz (USA, Canada) 
Data rate
62.5 kbps
Channel bandwidth
500 kHz
Modulation type
CSS
Protocol
sWave®
Wireless approvals
USA: FCC - VPYLBAA0QB1SJ
Canada: IC - 772C-LBAA0QB1SJ

Function

Telegram rate
max. 12000 telegrams with repetitions/h
Transmission power
< 25 mW

Dimensional drawing

Further drawings

Arrangement of receiver and switch antenna


A = Optimum mounting
B = Possible mounting
C = Unsuitable mounting

Downloads

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Mounting and wiring instructions – RF Rx-4W

German, English

PDF2 MB 13.11.2025
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Wireless receiver

RF Rx SW915B-4W 24 VAC/DC

Article no.: on request

This product is only available on request, please contact our sales team. contact us