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Intrinsically Safe Signalling

Syrex IS Range

The Syrex IS Sounder is an intrinsically safe alarm sounder which provides an audible warning signal in hazardous area applications.

With three alarm stages and a low current consumption, the Syrex IS Sounder is ideal for both fire and process control applications.

The Syrex IS Sounder needs to be used with a galvanic isolator specified by the system certificates.


  • Rated for Category 1
  • ATEX approved
  • EX II 1G EEx ia IIC T4
  • Choice of 49 tones
  • Choice of lens colours
  • Auto synchronised sound output
  • ABS flame retardant UL94V0 & 5VA housing
  • Weatherproof to IP65
  • Volume control
  • Voltage 6-28V DC

Part No.DescriptionLens ColoursAudibility at 1m (tone dependent)TonesCurrent (tone dependent)
TCA-0023IS Sounder-Up to 100dB (A)4925mA typical
TCA-0029IS-SB Sounder BeaconRedUp to 100dB (A)4948mA typical
TCA-0037IS-SB Sounder BeaconAmberUp to 100dB (A)4948mA typical
TCA-0038IS-SB Sounder BeaconBlueUp to 100dB (A)4948mA typical
TCA-0039IS-SB Sounder BeaconGreenUp to 100dB (A)4948mA typical
TCA-0026IS-XN BeaconRedN/AN/A25mA typical
TCA-0033IS-XN BeaconAmberN/AN/A25mA typical
TCA-0034IS-XN BeaconBlueN/AN/A25mA typical
TCA-0067IS-XN BeaconGreenN/AN/A25mA typical

For a full list of the certificate numbers relating to this product, please contact Klaxon Signals directly.

IP Rating: IP65    Frequency: Flash rate 2Hz or 1Hz (double flash)     Operating Temp: -40ºC to +60ºC                                  
Construction: High Impact ABS Flame Retardant    Cable Entries: 2    Weight: 0.35kg