The AT-EGS02 Explosion-Proof Foam Discharge Warning Sign provides a clear visual warning during the activation or discharge of a foam fire suppression system.
It is normally installed above or beside the entrance to a foam-protected room or hazardous industrial area. When a DC24V activation signal is received from the fire suppression control system, the high-brightness LED display flashes red to warn personnel that foam discharge is in progress.
The product uses a flameproof enclosure, a tempered-glass display panel and a sealed structural design. It is suitable for hazardous areas containing explosive gases, combustible dust, moisture or corrosive gases.
Recommended English display wording:
WARNING
FOAM DISCHARGE IN PROGRESS
DO NOT ENTER
The source information confirms DC24V operation, flashing red LED indication, two-wire non-polarized wiring and IP66 enclosure protection.
| Parameter | Specification |
|---|---|
| Product Model | AT-EGS02 |
| Product Name | Explosion-Proof Foam Discharge Warning Sign |
| Rated Power | ≤5 W |
| Input Voltage | DC24V |
| Device Type | Non-addressable |
| Wiring System | Two-wire, non-polarized |
| Light Source | LED-SMD2835 |
| Light Colour | Red |
| Operating Mode | Flashing illumination |
| Flashing Frequency | Approximately 90 flashes/min |
| Surface Brightness | 50–300 cd/m² |
| Explosion-Proof Marking | Ex db IIB T6 Gb; Ex tb IIIB T80°C Db |
| Referenced Standards | GB/T 3836.1-2021; GB/T 3836.2-2021; GB/T 3836.31-2021 |
| Hazardous Gas Environment | Zone 1 and Zone 2 |
| Gas Group | IIA and IIB |
| Combustible Dust Environment | Zone 21 and Zone 22 |
| Temperature Group | T1–T6 |
| Ingress Protection | IP66 |
| Corrosion Protection | WF1 / WF2, as stated in the source information |
| Cable Entry Thread | M25 × 1.5 |
| Suitable Cable Diameter | Ø8–14 mm |
| Operating Temperature | -25°C to +45°C |
| Display Panel Material | Tempered glass |
| Glass Thickness | ≥8 mm |
| Product Dimensions | 355 × 185 × 64 mm |
| Net Weight | Approximately 3.4 kg |
| Gross Weight | Approximately 3.8 kg |
| Installation Method | Wall-mounted |
Dimensional note: The technical specification table states a product depth of 64 mm, while the side-view dimensional drawing shows approximately 67 mm. The final installation dimensions should be confirmed before preparing mounting holes or conduit positions.
The AT-EGS02 is a visual warning device. It does not detect fire, smoke, heat, flame, gas or foam discharge independently.
Its confirmed visual performance data includes:
| Performance Item | Specification |
|---|---|
| Surface Brightness | 50–300 cd/m² |
| Light Colour | Red |
| Indication Mode | Flashing |
| Flashing Frequency | Approximately 90 flashes/min |
| Light Source | LED-SMD2835 |
A specific visual recognition distance is not stated in the source file. Actual visibility depends on installation height, ambient lighting, viewing angle, warning text size and site conditions.
The AT-EGS02 operates from a DC24V activation supply and uses a two-wire non-polarized connection.
Typical connection:
Foam Fire Suppression Control Panel → DC24V Warning Output → AT-EGS02 Foam Discharge Warning Sign
When the suppression control panel supplies DC24V to the warning sign, the LED display flashes to indicate that the foam extinguishing system is operating or discharging.
Confirmed wiring information:
A relay output, addressable communication interface or network connection is not specified in the source file.
Before connection, confirm that the control panel output voltage and available current are suitable for the warning sign’s rated power.
The AT-EGS02 is designed for wall-mounted installation at the entrance or exit of a foam fire suppression zone.
Recommended installation positions include:
Installation requirements:
The source installation diagram shows a wall-mounting bracket, M25 × 1.5 cable-entry assembly, internal terminal, internal earth terminal, galvanized conduit, U-shaped conduit clamp and an external explosion-proof junction box arrangement.
The AT-EGS02 can be used at entrances to foam fire suppression zones in:
The actual application should be selected according to the foam extinguishing system design, hazardous-area classification and local project requirements.
