IS-pA1 Panel Mount Sounder

  • Input overload and reverse current protection.


  • ATEX certificate: SIRA 10ATEX2317X,
    EN 60079-0 : 2012,EN 60079-11 : 2012,
    IEC 60079-26 : 2014

  • IECEx certificate: IECEx SIR 10.0073X,
    IEC 60079-0 : 2011, IEC 60079-11 : 2011,
    IEC 60079-26 : 2014

  • GOST-R certificate: POCC GB.JB05.B03365

IS-pA1 Panel Mount Sounder
Eac-logo Ex-eac-logo Iecex-approval Atex-approval Gost-approval

IS-pA1 Panel Mount Sounder

The IS-pA1 is a compact, panel mount 90dB(A) intrinsically safe alarm buzzer.

Producing a high frequency continuous tone, the IS-pA1 can be pulsed to produce different sounds. Utilising the supplied threaded lock nut the IS-pA1 mounts into a 28mm hole - ideal for applications in control panels where a fault indication or other process alarm is required.


Nominal output: 89.6dB(A) @ 1m +/- 3dB [80.6dB(A) @ 10ft/3m]
No. of tones: 1 - continuous tone
Frequency: 2600Hz
Voltage: 16-28vdc via Zener barrier or
galvanic isolator
Current: 12mA typical when powered from 24v
supply Zener barrier
Ingress protection: IP66
Rating: Continuous
Housing material: UL94V0 & 5VA FR ABS
Housing colour: RAL7038 Grey
Mounting: Panel mount - 28.5mm
Terminals: Spade terminals
Operating temp: -40° to +60°C [-40 to +140°F]
Storage temp: -40° to +70°C [-40 to +158°F]
Relative humidity: 90% at 20°C [68°F]

Part Codes

II 1G Ex ia IIB T6 Ga (-30ºC <=Ta<= +60°C)
May be powered from any certified Zener barrier or galvanic isolator whose output parameters do not exceed:
Uo : 40VDC Io : 660mA Po : 1.3W (T1-T4)
Po : 0.6W (T5)
Po : 0.3W (T6)