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323A27 system conforms to the requirements of EN1643 covering automatic shutoff valves for use with gas burners and gas appliances to EN161
off or over on changes in actual pressure relative to the set switching point (reference value)
Siemens AGG03 Quartz Lens Kit - High Sensitivity
351 is used to supervise 2 stage forced draft burners
Siemens SQM40.244A21 Servo Motor | Actuator voltage_200v 323A27 system conforms to theThe SQM40. 244A21 is a robust damper actuator designed for large commercial dampers in HVAC systems. It features a 10mm servo shaft diameter and operates with a counterclockwise rotation. With a servo torque of 10 Nm and a run time of 30 seconds to 90 degrees, this actuator provides reliable performance. It operates at 230V AC and includes 4 auxiliary switches for advanced control options. The actuator is housed in a NEMA 4 enclosure, ensuring