L101L Intrinsically Safe Alarm Sounder

The IS-L101L unit is an intrinsically safe field mounting beacon which provides a bright flashing warning signal. It can be used as a stand alone unit or combined with the IS-A105N series Alarm Sounder.

The unit can be used independently or combined with an IS-A105N 49 alarm sounder. Combination units can utilize a common zener barrier or galvanic isolator and may be coupled together or mounted separately. With the IS-A105N the alarm accept function can be utilized. 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.

Part Codes

Part Codes

ATEX / IECEx / FM
II 1G Ex ia IIC T4 Ga (-40°C <=Ta<= +60°C)
IS Class I, Zone 0, AEx ia IIC T4 Ta= +60°C
IS Class l, Division 1, Groups A, B, C, D T4
GOST-R
0ExiaIICT4 IP65 -40° to +60°C

May be powered from any certified Zener barrier or galvanic isloator whose output parameters do not exceed :
Uo : 28VDC	Io : 660mA	Po : 1.2W

Note

The IS-L101L can be combined with the IS-A105N intrinsically safe alarm sounder.