Explosion-proof loudspeaker (Intrinsically safe)

Zone 1 & 2 Flameproof, Gas groups IIC, IIB & IIA - Zone 21 & 22 Dust Ignition Proof (BExDL15E)
15 Watts RMS - 70 & 100v line / 16 Ohm / 8 Ohm
EEx de IIC T4 (Tamb.-50 to +55°C) 
ATEX, CENELEC, FTZU, GOST R
Impendance version: 8 Ohm or 16 Ohm 
Dispersion: 120° @ 1kHz & 32° @ 4kHz 
Frequency range: 400Hz to 8000Hz 
Dc Line monitoring: 2.2uF Capacitor (Transformer version) 470uF Capacitor (Impedance version) 
Enclosure material: Marine grade LM6 Aluminium 
Chromated & powder coated finish- good resistance to humidity and salt spray  environment 
Horn: High impact UL94 V0 & 5VA FR ABS 
Colour available: Red (RAL3000) 
Operating temperature: -50°C to +55°C
Storage temperature: -50°C to +70°C 
Weight: 70/100v line: 3.45kg Low impedance: 3.10 kg 
KEMA Certificate number: 99ATEX6321 
Loudpeaker third party tested- copy of report available on request   

Installation features: 
Very large termination area 
Dual M20 ISO cable gland enteries (supplied with one stopping plug) 
Ratchet adjustable stainless steel 'U' bracket for positive adjustment under harsh conditions 
IN & OUT Terminals 
Terminals accept 0.5 to 4.0mm2 cables