This document is about Siemens Building Technologies HVAC products AP1N4561zh. The product is an electric hydraulic valve actuator with a stroke of 20mm. The operating voltage of the actuator varies depending on the model and can be AC 230V, AC 24V, DC 0–10V, 4–20mA or 0–1000Ω. The actuator has various functions including valve position feedback, stroke calibration, LED status indication, and priority control. It also features direction selection, stroke limit control, and adjustable starting point and stroke range for sequential control. The actuator is suitable for Siemens VVF and VXG series valves, used as control valves or safety shut-off valves in HVAC systems.

SQN7. electric actuators are used for control of dampers and gas or fuel valves on small to medium-sized burners. The SQN7… are ideally suited for OEM manufacturers who integrate the actuators into their products!

Electric actuator SUA21 for valves VVI46…, VXI46…, VVS46…, VXS46…, VD…, VE…, suitable for control of cold and hot water in heating, ventilation and air conditioning systems V…46… valves or radiator valves VD…, VE…, can be used in conjunction with temperature controllers RAB series, RCC series, RDF series.

The SG-101 AC power line parameter tester is a specialized instrument for testing AC power line parameters, featuring superior performance, powerful functions, and simple operation.