MS 490 WATER AND DUST PROTECTED 120DB EMERGENCY AND FIRE DOUBLE ELECTRIC MOTOR SIREN

Description

The MS-490 is an industrial electric motor siren designed for emergency and fire alarm use in harsh or large environments. While some listings call it a “double electric motor” siren, many simply list it as an “electric motor siren” (implying robust motor-driven mechanism) with high decibel output.

Key Features

• Sound Level: approx 120 dB (standard spec) at 1 m for AC230V version.

• Voltage / Current: AC230V, current ~1.6A for 50/60 Hz. 

• Protection Grade: IP44 (water & dust protected) for outdoor or semi-exposed use.

• Material: Aluminium + steel housing for durability & rugged environments. 

• Insulation Resistance / Withstand Voltage: For example, insulation resistance 100 MΩ at 500 VDC; dielectric strength 500 VAC, 50/60Hz for 1 minute. 

Industry / Use Cases

• Cranes and ship-/port operations

• Fire alarm systems in factories, warehouses, workshops

• Farms, reservoirs, mines and airports for warning and signal use 

• Security / large outdoor alarm systems for industrial zones and boats