Siemens SQN91.140B1799 Damper Actuator Obsolete Siemens QRB1A-A148B70B Photocell

Siemens QRB1A-A148B70B Photocell

251A1700 - Actuator

11 Internal Threaded Connections

144R11 is a spring return damper actuator designed for emergency damper closure in HVAC and industrial systems

Dungs LGW 150 A2P Pressure Switch

Siemens SQN91.140B1799 Damper Actuator Obsolete Siemens QRB1A-A148B70B PhotocellSQN91. 140B1799 actuators are designed for driving gas or air dampers of oil or gas burners of small to medium capacity, for load dependent control of the fuel and combustion air volume: Actuator Use: In connection with P PI or PID controllers, such as the RWF40 Directly via the different types of burner controls, such as LOA, LMO, LMG, LFL. In connection with 1 or 2 wire control or 3 position controllers. Specifications: Impact proof and heat