Product Overview

The AT-EGS03 Explosion-Proof Water Mist Warning Sign is designed to provide a clear visual warning during water mist system activation.

It is typically installed above or beside the entrance to a protected room. When connected to the fire suppression control system, the high-brightness LED panel flashes to indicate that water mist discharge is in progress.

The unit uses a flameproof enclosure suitable for hazardous gas and combustible dust environments. Its sealed structure, tempered-glass display panel and corrosion-resistant construction make it suitable for industrial areas with moisture, dust or corrosive gases.

The standard display message can be configured as:

AREA PROTECTED BY WATER MIST
WATER MIST DISCHARGE IN PROGRESS
DO NOT ENTER

The original product information specifies DC24V operation, IP66 protection, flashing red illumination and a two-wire non-polarized connection.

Key Features

• Explosion-proof warning sign for water mist fire suppression systems
• Suitable for hazardous gas and combustible dust environments
• DC24V operating voltage
• Two-wire non-polarized connection
• Non-addressable operation
• High-brightness LED light source
• Flashing red visual indication
• Surface brightness from 50 to 300 cd/m²
• IP66 ingress protection
• Tempered-glass display panel
• Die-cast metal enclosure
• Sealed structure with ageing-resistant silicone rubber gasket
• Wall-mounted installation
• Suitable for steel conduit or cable wiring
• Low power consumption
• Long LED service life
• Maintenance-friendly construction
• Custom warning text and display layout available subject to confirmation

Technical Specifications

Dimensional note: The technical parameter table specifies a depth of 64 mm, while the side-view dimensional drawing shows approximately 67 mm. Final dimensions should be confirmed before project installation.

Detection Distance / Performance Data

This product is a visual warning device and does not provide fire, smoke, flame or gas detection.

Its primary visual performance data includes:

• Surface brightness: 50–300 cd/m²
• Flashing frequency: approximately 90 flashes per minute
• Light colour: red
• Operating mode: flashing illumination

The effective viewing distance depends on the installation height, ambient lighting, viewing angle and site conditions. A specific viewing distance is not stated in the source file.

Wiring / Signal Output Description

The AT-EGS03 operates from a DC24V power supply and uses a two-wire non-polarized connection.

The device is normally connected to the warning output or suppression-release output of a compatible fire suppression control panel. When the DC24V activation signal is supplied, the LED display begins flashing.

Recommended wiring arrangement:

Fire Suppression Control Panel → DC24V Warning Output → AT-EGS03 Warning Sign

Important wiring information:

• DC24V input
• Two-wire connection
• No polarity requirement
• Non-addressable device
• M25 × 1.5 cable entry
• Suitable cable outside diameter: Ø8–14 mm
• Steel conduit or suitable industrial cable may be used

No relay output, communication interface or addressable loop connection is specified in the source information.

Installation / Mounting Notes

The AT-EGS03 is designed for wall-mounted installation at the entrance or exit of a water mist protected area.

Recommended installation positions include:

• Above the protected-room entrance
• Beside the access door
• At a clearly visible position along the evacuation route
• Outside the water mist discharge zone

Installation requirements:

1. Installation must be completed by qualified personnel.
2. Confirm that the nameplate data matches the actual operating conditions.
3. Check that the cable-entry sealing ring, gasket and compression components are complete.
4. Ensure that the protective earth connection is secure.
5. Use appropriate anti-loosening measures for all fasteners.
6. Do not open the explosion-proof enclosure while energized.
7. After wiring, inspect the flameproof joint surfaces for impact marks, scratches or other damage.
8. Tighten the cable-entry sealing components properly to prevent water ingress.
9. Maintain the enclosure sealing performance after installation or servicing.
10. The installation location must not obstruct the warning display.

Application Areas

The AT-EGS03 is suitable for entrances to water mist fire suppression zones in:

• Oil and gas facilities
• Petrochemical plants
• Chemical processing areas
• Natural gas facilities
• Coal processing plants
• Offshore platforms
• Marine and ship applications
• Aerospace facilities
• Power generation facilities
• Electrical rooms
• Machinery rooms
• Industrial control rooms
• Railway facilities
• Metallurgical plants
• Pharmaceutical factories
• Electronics manufacturing areas
• Fire protection equipment rooms
• Areas containing moisture or corrosive gases
• Hazardous gas Zone 1 and Zone 2
• Combustible dust Zone 21 and Zone 22

Why Choose ANWETECH

ANWETECH provides professional warning and indication devices for fire alarm, gas extinguishing and water mist fire suppression systems.

The AT-EGS03 offers:

• Clear water mist discharge indication
• Explosion-proof construction for industrial applications
• DC24V compatibility with common fire suppression control panels
• Easy two-wire non-polarized installation
• High-brightness flashing LED indication
• IP66 protection for harsh environments
• Custom display text options for different projects and languages
• Engineering support for fire suppression system integration