Consilium ST650EX-CAT 3N Hydrogen Gas Detector (1226111/0)
ST650EX-CAT 3N catalytic bead gas detector for hydrogen detection over 0–100 %LEL H2. The manufacturer describes this family as an all-round gas detector for combustible gases and vapours, with analogue 4-20 mA output. Manufacturer-listed system references: CGD50, CGD500 TOUCH. Catalytic bead sensors are not suitable for areas with reduced oxygen and for environments containing silicones or leaded vapours.
- Original manufacturer
- Consilium Safety Netherlands B.V.
- Name
- Consilium ST650EX-CAT 3N Hydrogen Gas Detector (1226111/0)
- Model
- ST650EX-CAT 3N
- Part number
- 1226111/0
Supply availability and delivery time require confirmation. A catalog reference does not imply stock.
Specifications
| Manufacturer approvals / certifications | Refer to the original manufacturer documents; current certification validity is unverified. |
|---|---|
| Analogue Output | 4-20 mA (2 mA system failure, >20 mA overrange) |
| Application | Hydrogen |
| Detection Range | 0–100 %LEL H2 |
| Detector Type | ST650EX-CAT 3N |
| Digital Output | RS485 Modbus RTU (half-duplex) |
| Gas Sensor Enclosure | SS 316 |
| Ingress Protection | IP 66 (Sensor IP 6x) |
| Operating Temperature | -20°C to +60°C (CAT) |
| Power Supply | 18 - 30 VDC (max. 120 mA) |
| Pressure Range | 700 to 1300 hPa (Catalytic) |
| Relative Humidity | 15-95 % (non-condensing) (Catalytic) |
| Sensor Type | Catalytic |
Compatibility
- Refer to the manufacturer documentation for system compatibility.
System selection requires technical confirmation.
Request technical confirmationAccessories
- Refer to the manufacturer documents for model-specific accessories and installation requirements.
Original documents & sources
Source pages
- https://nl.consiliumsafety.com/content/1-producten/8-st650-ex/datasheet_en_st650ex.pdf
- https://nl.consiliumsafety.com/content/1-producten/8-st650-ex/datasheet_en_st650ex.pdf#page=1&native-product-image=eba9bf56b4015ed9b472eacc64b86c692a3374662d007fefb1f1ff1fb2c8f885&format=png
- https://nl.consiliumsafety.com/content/1-producten/8-st650-ex/datasheet_en_st650ex.pdf#page=1&native-product-image=eba9bf56b4015ed9b472eacc64b86c692a3374662d007fefb1f1ff1fb2c8f885
Original manufacturer data retained. Product enquiry and technical sourcing by MAXONE Marine. Last reviewed: 2026-11-04.