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SQM40/41...
Actuators for air and gas dampers
Description
Features
Application
SQM40/41... actuators are used for the positioning of flow control valves, butterfly
valves, dampers or any application requiring rotary motion. The SQM40/41... actuators
accommodate control input signals of 4 to 20 mA, 0 to 135 Ω, 2 to10 Vdc, position
proportional and floating control. SQM4... actuators are available with up to six internal,
easily adjustable switches.
The actuators are used primarily for precise flow control of gas, oil or combustion air.
The NEMA 4 SQM40/41... actuator may be mounted in any position. A selection of
Mounting Brackets and shaft options provides installation flexibility and allows for the
simple replacement of most competitive actuators.
45 or 90 in-lb
Clockwise and counterclockwise versions
Running times of 12 or 25 seconds
Various drive shaft options
Drive shaft disengagement clutch
C-UL-US, CE approved
NEMA 4 weatherproof enclosure
Internal position indication
Mounting brackets available to replace competitive actuators
Modulating version accepts 4 to 20 mA, 0 to 135 Ω or 2 to10 Vdc
Zero and span adjustment
SQM40/41... actuators are suited for both industrial and commercial applications. On
burner applications requiring high turndown and reliable ignition, the auxiliary switches
can be applied to create separate positions for burner ignition and low fire.
The shaft disengagement clutch allows for quick manual alignment of the actuator
shaft with a connected valve or linkage.
Technical Instructions
Document No. 7817US
October 6, 2010
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Table of Contents
Related Manuals for Siemens SQM40 Series
Summary of Contents for Siemens SQM40 Series
- Page 1 Technical Instructions Document No. 7817US October 6, 2010 SQM40/41… Actuators for air and gas dampers Description SQM40/41… actuators are used for the positioning of flow control valves, butterfly valves, dampers or any application requiring rotary motion. The SQM40/41… actuators accommodate control input signals of 4 to 20 mA, 0 to 135 Ω, 2 to10 Vdc, position proportional and floating control.
- Page 2 Technical Instructions SQM40/41…Actuators Document No. 7817US October 6, 2010 Product Numbers SQM40…Counterclockwise Table 1 Product no. Torque Time Control Board Shaft Approvals Operating (lb-in) voltage (90° @ 60 Hz; sec) SQM40.144R11SC 12.5 3/8" square SQM40.145R11SC 12.5 10mm D SQM40.164R11SC 12.5 3/8"...
- Page 3 Technical Instructions SQM40/41…Actuators Document No. 7817US October 6, 2010 Product Numbers SQM41…Clockwise Table 2 Product no. Torque Time Control Board Shaft Approvals Operating (lb-in) (90° @ voltage 60 Hz; sec) SQM41.144R11SC 12.5 3/8" square SQM41.145R11SC 12.5 10mm D SQM41.164R11SC 12.5 3/8"...
- Page 4 Technical Instructions SQM40/41…Actuators Document No. 7817US October 6, 2010 Product Number Identification Legend For actuator identification only. To select product numbers for ordering, see Tables 1 & 2 SQM4 Basic Type counterclockwise clockwise Torque (Time) 45 in-lb (12 sec) 90 in-lb (25 sec) PCB type/ Switches 3 switches, modulating version 6 switches, position proportional control...
- Page 5 Technical Instructions SQM40/41…Actuators Document No. 7817US October 6, 2010 Technical Data Agency approvals C-UL-US, CE General unit data Operating voltage 120 Vac -15% / +10% 230 Vac -15% / +10% Operating frequency 50 to 60 Hz Power consumption 10 VA Type of motor Reversing synchronous motor Duty cycle...
- Page 6 Technical Instructions SQM40/41…Actuators Document No. 7817US October 6, 2010 Control range 0 to 90° Electrical specifications Input control signals SQM4x.x4xxx 2 to 10 Vdc, 4 to 20 mA, 0 to 135 Ω, or 120Vac or 230Vac SQM4x.x6xxx 120Vac or 230Vac SQM4x.x7xxx 120Vac or 230Vac Zero adjustment (see pg 9)
- Page 7 Technical Instructions SQM40/41…Actuators Document No. 7817US October 6, 2010 Installation and Operation Instructions SQM40/41…actuators rotation direction is not field reversible. Ensure that the Rotation Direction correct version is specified per application requirements. For example, a clockwise-to-open butterfly valve requires a counterclockwise actuator (SQM40). The SQM40 has a counterclockwise rotation when looking at the shaft.
- Page 8 Technical Instructions SQM40/41…Actuators Document No. 7817US October 6, 2010 Switch Adjustment Switches are set via adjusting screws on each cam. Three scales indicate the angle of switching point (as shown below). All SQM40/41… actuators have six switch cams but not all models have six switches.
- Page 9 Technical Instructions SQM40/41…Actuators Document No. 7817US October 6, 2010 Wiring SQM4x.xxxRxxSC (US version) includes a conduit plate with two ½” NPT threaded Electrical Connection connections. (Replacement plate part number is AGA45.11.) The use of flexible conduit is required, rigid conduit must not be used. SQM4x.xxxAxxSC (EU version) includes a conduit connection plate with two M16 holes, not threaded.
- Page 10 Technical Instructions SQM40/41…Actuators Document No. 7817US October 6, 2010 Range Adjustment Adjust the range of the analog signal to match the switch positions (min. and max. (SQM4x.x4xxxxSC only) position): 1. Set to the required high-fire position (e.g. 85°; position is indicated on the cam I (red) scale next to the cam).
- Page 11 Technical Instructions SQM40/41…Actuators Document No. 7817US October 6, 2010 SQM4x.x6xxxSC 3-position version with 2 end switches and 4 auxiliary switches Main voltage terminals Design AUX (VI) NO Output AC 120 V / AC 230 V max. 1 A AUX (VI) Input AC 120 V / AC 230 V AUX (VI) NC...
- Page 12 Technical Instructions SQM40/41…Actuators Document No. 7817US October 6, 2010 SQM4x.x7xxxSC 2-position version with 2 end switches and 3 auxiliary switches Design Main voltage terminals AUX (VI) NO Output AC 120 V / AC 230 V max. 1 A AUX (VI) Input AC 120 V / AC 230 V AUX (VI) NC...
- Page 13 Technical Instructions SQM40/41…Actuators Document No. 7817US October 6, 2010 The first dimension shown is in inches, millimeters are shown in parentheses. Dimensions SQM4x.xxxxxSC Dimensions...
- Page 14 Technical Instructions SQM40/41…Actuators Document No. 7817US October 6, 2010 The first dimension shown is in inches, millimeters are shown in parentheses. Dimensions, Continued Shaft Dimensions...
- Page 15 Technical Instructions SQM40/41…Actuators Document No. 7817US October 6, 2010 Dimensions, Continued AGA57.5 Mounting Bracket Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models as design improvements are introduced. Other product or company names mentioned herein may be the trademarks of their respective owners. Your feedback is important to us.