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AS8157KT - 2-Channel High Current RF Remote Control Set


2 channel high security (rolling-code) RF remote control 12 Amp mains rated relay board and keyfob set for use in a variety of applications. One receiver board can be used with up to 15 transmitter key fobs making it ideal for a multi-user access or control system.

Whether you want to control a garage door or gate, a car and/or home alarm, or perhaps remotely turn lights or anything else on or off, this system is just what you need.

  • Each independently controllable channel can be set to operate in either LATCHING-TOGGLE or MOMENTARY mode
  • Each channel has a Reset input for connection to a limit switch (not supplied). When used in Toggle mode, the relay with automatically turn off when the limit switch is closed. Ideal for garage doors and other control applications
  • Can be used to reverse the voltage on for example a DC motor (see Reversible DC Motor Connection Diagram Help Sheet)
  • Up to 15 transmitters can be uniquely coded to work with one receiver board or multiple receivers can be coded to work with one transmitter keyfob
  • Uses the latest state-of-the-art rolling code technology making it close-to-impossible to electronically crack
  • Typical range is 40 metre plus (line of sight)
  • LED relay status indicators
  • The 2-Channel High Current RF Remote Control Set can be purchased in either self-assembly kit form (Order Code 8157KT) or pre-assembled (Order Code AS8157). Both versions include 1 x pre-assembled RF Receiver Module (30A17-Rx) and 1 x pre-assembled 30A17-Tx 2-Button Keyfob Transmitter
  • Extra transmitter units can be purchased separately (Order Code 30A17-Tx)
Relay Receiver Board
SupplyRegulated 9-15Vdc (Order Code 660.446UK with connector 778.106)
Current consumptionStandby <8mA. Add ~30mA for each active relay
Switching Frequency~120 operations per minute maximum
Outputs2 x SPDT Relays (toggle or momentary action)
Maximum Output
Load (Resistive)
Up to 240Vac or 28Vdc @ 12 Amps max. per relay (Relay Datasheet)
Output ConnectionsNO, NC, C (Relay FAQ)
Inputs1 reset input per channel (for limit switching)
Dimensions~ 88 x 60 x 24 mm approx
ConnectionsScrew terminal blocks
Key Fob Transmitter
Supply12Vdc battery (supplied)
Typical Range40 metres line of sight
Dimensions50 x 35 x 15 mm approx
Product FormatSELF-ASSEMBLY Electronic Kit (KT) or
PRE-ASSEMBLED Electronic Module (AS) Product Formats Info
DocumentationUser Manual
Reversible DC Motor Connection Diagram
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