Permanent beacon IS-L101L

flashLEDDC

Description
The IS-L101L is an intrinsically safe field-mount LED beacon that provides a bright flashing warning signal.

Use and operation
The unit can be used independently or combined with an IS-A105N alarm sounder. Combination units can utilise a common Zener barrier or galvanic isolator and may be coupled together or mounted separately. With the IS-A105N the alarm-accept function is available: closing a pair of external contacts (e.g. push switch) silences the alarm for a preset period between 5 seconds and 2 hours. If the alarm condition persists after the preset time the sounder will reactivate.

Features

• Input overload and reverse current protection
• Prismatic lens optimises L.E.D. effectiveness
• Approved for mining applications

Approvals

• ATEX certificate: SIRA 04ATEX2302X
• IECEx certificate: IECEx SIR 04.0039X
• FM approved
• GOST-R certificate: POCC GB.JB05.B03365

Coding
ATEX / IECEx / FM: II 1G Ex ia IIC T4 Ga (-40ºC ≤ Ta ≤ +60°C). I M1 Ex ia I Ma (-40ºC ≤ Ta ≤ +60°C). IS Class I, Zone 0, AEx ia IIC T4 Ta = +60°C. IS Class I, Division 1, Groups A, B, C, D T4. Ex EAC: 0ExiaIICT4 IP65 -40° to +60°C.

Note
The IS-L101L can be combined with the IS-A105N intrinsically safe alarm sounder to create the IS-AL105NL.

Technical specifications

• Model: IS-L101L
• Part number: 1-11-020
• Light source: Array of 6 high intensity L.E.Ds
• L.E.D. colours: Red, Amber, Blue, Green and White (Blue/Green/White versions use a clear lens)
• Standalone flash rate: 2 Hz (2 double flashes per second)
• Effective intensity: 48 cd* (measured ref. to I.E.S.)
• With IS-A105N: On = 1 Hz (1 double flash/s); Silenced = 2 Hz (2 double flashes/s - alarm accepted)
• Supply voltage: 16-28 VDC via Zener barrier or galvanic isolator
• Current: Standalone 25 mA typical; With IS-A105N 35 mA typical
• Ingress protection: IP66
• Rating: Continuous
• Enclosure material: UL94V0 & 5VA FR ABS & PC
• Enclosure colour: RAL3000 Red or RAL7038 Grey
• Fixings: Stainless steel
• Cable entries: 2 x M20 clearance; supplied with stopping plugs
• Terminals: 0.5 to 2.5 mm²
• Operating temperature: -40° to +60°C [-40 to +140°F]
• Storage temperature: -40° to +70°C [-40 to +158°F]
• Relative humidity: 95% at 20°C [68°F]
• Weight: 0.40 kg (0.88 lbs)
• Can be powered from any certified Zener barrier or galvanic isolator whose output parameters do not exceed: Uo 28 VDC, Io 660 mA, Po 1.2 W