Kromschroder DG 500U-3 Flame Detector
Technical specs, application notes, replacement checks, and related model references.
Product Overview
The Kromschroder DG 500U-3 is a highly sensitive and reliable gas/air pressure switch designed for continuous monitoring of gas trains and combustion air systems. Manufactured to precise German engineering standards, it triggers safe burner shutdown if the gas or air pressure deviates from the critical setpoints. The switch utilizes an advanced elastomer diaphragm and microswitch mechanism to ensure repeatable and drift-free actuation. It is a verifiable safety interlock required by EN 1854 and EN 12067-2, widely deployed across heavy-duty thermal process plants.
Key Features
- Component Type: Gas/Air Pressure Switch
- Mechanism: Diaphragm-actuated microswitch with gold or silver contacts
- Media: Suitable for natural gas, biogas, LPG, and combustion air
- Standards: Compliant with EN 1854 / EN 12067-2, CE marked
- Adjustment: Easy-to-read scale for precise setpoint calibration
Technical Specifications
Max Operating Pressure
600 mbar
Switching Capacity
Max. 250 V AC, 5 A
Protection Class
IP 54 (IP 65 optional)
Ambient Temp
-15°C to +80°C
Diaphragm Material
NBR (Perbunan)
Selection Notes & Data Verification
The DG 500U-3 page is structured for engineering comparison: confirm the product type, firing range, fuel type, operating mode, electrical supply, and safety approvals against the manufacturer datasheet before specifying the burner or component.
Burner.wiki normalizes product data for discovery and comparison, but final selection should account for combustion chamber backpressure, local emission limits, control sequence requirements, and site commissioning conditions.
Typical Applications
Related Models
Related Knowledge
FAQ
What is Kromschroder DG 500U-3 used for?
Kromschroder DG 500U-3 is referenced as a flame detector for industrial combustion systems. Verify the exact application against the burner documentation, control cabinet wiring, and manufacturer datasheet.
Can DG 500U-3 replace another model?
Replacement depends on voltage, safety timing, wiring terminals, flame supervision method, mechanical fit, and local combustion safety requirements.
What should be checked before installing DG 500U-3?
Check supply voltage, burner sequence, fuel type, pressure or capacity range, detector compatibility, safety loop configuration, and the equipment nameplate before commissioning.
Documentation Note
Technical documentation should be verified against the manufacturer datasheet, burner cabinet wiring diagram, and equipment nameplate before installation or replacement.
- Check supply voltage and frequency.
- Confirm terminal layout and safety interlocks.
- Verify flame detector or actuator compatibility.
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