E2S IS-A105N Hazardous Area Intrinsically Safe Electronic Sounder



The IS-A105N is a high output, 105dB(A) alarm sounder. Approvals include ATEX, IECEx and GOST-R for Zone 0 applications and FM approval for Class I Division 1 and Class I Zone 0 applications.

The IS-A105N is suitable for all intrinsically safe signalling applications including fire, security and process control.

  • Electronic sounder up to 105dB
  • IECEx EExia IIC T4 Intrinsically Safe, zone 0
  • 49 tones
  • 3 stage alarm
  • Automatically synchronises on multi-sounder systems
  • Combines with L101L-IS beacon
  • IP66


Voltage: 8-30V.d.c. via zener barrier

Current: 25mA at nominal voltage

Sound output: 105dB @1m

Sound Frequency: 49 tones see tone 

Protection: IP66

Temp Rating (°C): -40 to +60

Duty: continuous

Cable Entry: 2 x 20mm gland knockouts

Construction: Flame retardant ABS

Weight: 0.75Kg

Approval: EEx ia IIC T4

Certificate No: IECEx (SIR 04. 0038X)


For more information, please click here


Unit may be powered by any certified zener barrier with output parameters not exceeding-Uo: 28VDC Io: 110mA Po: 0.85W