Field Instruments

General

Siemens Rotary damper actuators are used in ventilation and air conditioning plants to regulate and shut off air dampers:

• For damper areas up to approximately 4 m2  (Guideline: Always comply with the damper manufacturer's specifications).
• Suitable for use with 2-position and 3-position controllers as well as modulating controllers (DC 0/2…10 V) to control air dampers.
• We recommend a minimum pulse length of 500 ms on rotary actuators operated with 3-point control to ensure continuous and accurate operation.

Features

• Nominal torque 20 Nm
• Operating voltage AC 24 V ~ / DC 24…48 V ⎓ or AC 100…240 V ~
• Mechanically adjustable span between 0…90°
• Pre-wired with standard 0.9 m connection cables
• Type-specific variations with adjustable offset and span forthe positioning signal
• Position indication: Mechanical and electrical
• Feedback potentiometer
• Self-adaption of the rotation angle range and adjustable auxiliary switches for supplemental functions

 Specifications

• Make: Siemens
• Model: GLB141.1E
• Torque: 10 Nm
• Air damper area: 1.5 m²
• Angular rotation: 90°
• Power consumption: 2 VA, 1.3 W
• Positioning time: 150 s
• Cable length: 0.9 m
• Positioning signal: 2-position/3-position
• Spring return function: No
• Degree of protection: IP54
• Ambient temperature, operation: -32…50 °C
• Medium temperature: -32…50 °C
• Ambient humidity, operation: 95 % RH.
• Dimensions (W x H x D): 68 x 137 x 59.5 mm
• Operating voltage: AC/DC 24 V
• Position feedback:
• Auxiliary switch: 0