Alarm sounder with LED beacon IS-A105N+IS-L101L

with signal lightintrinsically safe

IS-A105N/IS-L101L Intrinsically Safe Alarm Sounder & LED beacon 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 preset 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. Lens colours: red, amber, blue and green. Features: Input overload and reverse current protection Prismatic lens optimises L.E.D eectiveness Auto synchronised sound output Unit can be mounted using external lugs or internal BESA compatible xing positions. Duplicate cable terminations (in & out for daisy-chain installations). Available with custom tone congurations and frequencies. Approvals: ATEX certicate: SIRA 04ATEX2301X, ATEX certicate: SIRA 04ATEX2302X, EN 60079-0 : 2006, EN 60079-11 : 2007, EN 60079-26 : 2007 IECEx certicate: IECEx SIR 04.0038X, IECEx certicate: IECEx SIR 04.0039X, IEC 60079-0 : 2007, IEC 60079-11 : 2006, IEC 60079-26 : 2006 FM approved: Class 3600 1998, Class 3610 1999, Class 3810 2005, IEC 60529 : 1989 GOST-R certicate: POCC GB.JB05.B03365