Attuatore Siemens SQM40.245A21

Siemens SQM40.245A21 actuator: electronic version with analog control for powerful burners. Buying Siemens SQM40.245A21 means equipping your burner unit with a high-tech electric drive with an analog control input for precise regulation of air, gas, or liquid fuel supply. This model is specially designed for use in medium and high power gas and oil burners, ensuring an optimal fuel-air mixture ratio for maximum efficiency and equipment safety. Purpose and application area The Siemens SQM40.245A21 actuator is designed to rotate air dampers, liquid fuel pressure regulators, gas valves, and other devices that perform rotary movements. Main application areas: Medium and high power gas and oil burners; Industrial thermal process units; Boiler units with modulating operation; Automatic combustion control systems. The actuator is controlled together with combustion automatics (burner managers) and/or in a system with three-point regulators or continuous controllers. This model is an electronic version with an analog control input, allowing integration of the drive into modern automation systems with a continuous signal of 4…20 mA or 0…10 V. Technical specifications of Siemens SQM40.245A21 The SQM40.245A21 actuator is equipped with a reversing synchronous motor with stall protection. Below are the full technical specifications: Electrical parameters: Supply voltage: 230 V (allowable 230 V -15%…+10%); Supply frequency: 50…60 Hz ±6%; Power consumption: 7.5…10 V·A; Control signal: analog (4…20 mA or 0…10 V); Electrical safety class: I.