Alarm sounder with LED beacon IS-AL105NL

with signal lightintrinsically safe

Intrinsically Safe combination L.E.D beacon/light & alarm horn. The IS-A105N+IS-L101L unit is an intrinsically safe field mounting combined alarm horn with L.E.D. beacon/light which provides a a loud audible and bright flashing visual signal utilising a common Zener barrier or galvanic isolator. The alarm horn features an alarm accept function – by closing a pair of external contacts (i.e push switch) the operator may silence the alarm for set periods between 5 seconds and 2 hours. If after the pre-set time the alarm condition still exists the sounder will activate again. Certified for use in application requiring Ex ia or Class I Div 1 equipment the IS-A105N+IS-L101L is a globally accepted solution to fire or process control signalling. Features Input overload and reverse current protection Prismatic lens optimises L.E.D effectiveness Auto synchronised sound output Unit can be mounted using external lugs or internal BESA compatible fixing positions. Duplicate cable terminations (in & out for daisy-chain installations). Available with custom tone configurations and frequencies.