SIEMENS LDU11.523A27 gas valve

Gas burners

Gas-fired industrial appliances

Automatic gas valve control systems

Safety leakage testing

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LDU11.523A27 is a gas valve proving system manufactured by Siemens. It performs automatic leakage testing for gas shutoff valves in compliance with EN 1643, ensuring safe burner operation.

Model: LDU11.523A27

Voltage: AC 220...240 V

Test times: t3 = 5 s, t4 = 5 s

Safety: Burner startup is inhibited if leakage is detected

Connection: Works with 1 or 2 pressure switches

Standards: EN 161, EN 1854, EN 1643

Weight: 0.873 kg

Protection class: IP40 (typical)

Data Sheet