The AT-EGS01 Explosion-Proof Gas Discharge Warning Sign is designed to indicate the activation or discharge of a gaseous fire extinguishing system.
It is normally installed above or beside the entrance to the protected room. When the warning sign receives a DC24V activation signal from the gas extinguishing control panel, its high-brightness LED display flashes red to warn personnel not to enter the protected area.
The product uses a flameproof enclosure with a tempered-glass display panel and a sealed structural design. It is intended for industrial locations containing explosive gases, combustible dust, moisture or corrosive gases.
Recommended English display wording:
GAS PROTECTED AREA
DO NOT ENTER WHILE GAS IS DISCHARGING
The source information confirms DC24V operation, flashing red LED indication, two-wire non-polarized wiring and IP66 enclosure protection.
| Parameter | Specification |
|---|---|
| Product Model | AT-EGS01 |
| Product Name | Explosion-Proof Gas 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 |
| Indication Mode | Flashing |
| 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 |
| Applicable Gas Groups | IIA and IIB |
| Combustible Dust Environment | Zone 21 and Zone 22 |
| Temperature Group | T1–T6 |
| Ingress Protection | IP66 |
| Corrosion Protection | WF1 / WF2, as listed in the source |
| 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 parameter table specifies a product depth of 64 mm, while the side-view dimensional drawing indicates approximately 67 mm. Final mounting dimensions should be confirmed before preparing conduit positions or mounting holes.
The AT-EGS01 is a visual warning device. It does not independently detect smoke, heat, flame, combustible gas or extinguishing agent discharge.
Its confirmed indication performance includes:
| Performance Item | Specification |
|---|---|
| Surface Brightness | 50–300 cd/m² |
| Light Source | LED-SMD2835 |
| Light Colour | Red |
| Indication Mode | Flashing |
| Flashing Frequency | Approximately 90 flashes/min |
A specific visual recognition distance is not stated in the source file. Actual visibility depends on the installation height, ambient lighting, viewing angle, display wording and site conditions.
The AT-EGS01 operates from an external DC24V activation supply and uses a two-wire non-polarized connection.
Typical system connection:
Gas Extinguishing Control Panel → DC24V Release Warning Output → AT-EGS01 Gas Discharge Warning Sign
When the gas extinguishing control panel provides the DC24V activation signal, the LED display flashes red to warn that the gaseous extinguishing system has been activated or is discharging.
Confirmed wiring information:
No relay output, communication interface, addressable loop connection or built-in detection function is 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-EGS01 is designed for wall-mounted installation at the entrance or exit of a gas fire suppression zone.
Recommended installation positions include:
Installation requirements:
The installation diagram in the source material shows a wall-mounting bracket, M25 × 1.5 cable-entry assembly, internal terminal, internal earth terminal, galvanized conduit, conduit clamps and an external explosion-proof junction box arrangement.
The AT-EGS01 is suitable for entrances to gaseous fire suppression zones in:
The product may be used with gaseous fire suppression systems where a DC24V discharge-warning signal is available. Compatibility with the selected control panel must be confirmed before installation.
