The electronic siren Sirena ETH 20 MD is designed for use in explosive environments (zones 1 and 2). Thanks to its robust construction made of copper-free aluminium alloy and its surface finish in red shade RAL 3020, it ensures high resistance to demanding industrial conditions. The device offers 32 selectable tones and high acoustic performance up to 110 dB(A) at 1 m. The siren is suitable for continuous operation and meets the strict protection requirements according to ATEX standards for group II equipment. The available variant SIR-57995 is intended for 240 V AC power supply.

Main Features

• For explosive environments – zones 1 and 2
• 32 selectable acoustic tones
• High sound pressure level – 110 dB(A)
• Robust copper-free aluminium body
• Surface finish in red shade RAL 3020
• ATEX certification – II 2GD Ex d IIC T3 Gb / Ex tb IIIC T150°C Db

Technical Specifications

Power Supply	240 V AC ±10 % (50/60 Hz)
Power	16 W max
Sound Pressure	110 dB(A) / 1 m
Temperature Range	–50...+60 °C
Protection Rating	IP66
Thread	3/4" ISO 7/1
Certification	ISSeP 11 ATEX 040 X