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12
Direct Coupled Actuators
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ML Non-Spring Return
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61 Floating, 24 Vac
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71 Modulating, 24 Vac
Input Signal Type
Fail Safe Mode
ML 61 61
System Controlled Numbers
XXX2B
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1 Standard
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2 Includes Declutch Function
Declutch
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A Feedback w/Accessory
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B Standard
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D Cover w/Conduit Connections
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C Feedback w/Accessory and
Cover w/Conduit Connections
Feedback & Conduit
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61 (4 Nm) = 35 in-lb
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74 (8 Nm) = 70 in-lb
To rque
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MS Spring Return
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MN Non-Spring Return
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41 Tw o-Position, 100-250 Vac
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61 Floating, 24 Vac/dc
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75 Modulating/Floating, 24 Vac/dc
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81 Tw o-Position, 24 Vac/dc
Input Signal Type
Fail Safe Mode
MS 75 10
System Controlled Numbers
XX 2 2 A
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0 No Internal Switches
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2 Tw o Internal Switches
Auxiliary Switches
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1 No Feedback
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2 Voltage Feedback
Feedback
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A Standard Model
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H Enhanced Model
Application Type
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03 Nm = 27 in-lb
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05 Nm = 44 in-lb
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10 Nm = 88 in-lb
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20 Nm = 175 in-lb
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34 Nm = 300 in-lb
To rque
EASY-TO-SELECT MODEL NUMBERS
MS and MN Families
Precise, reliable performance. Lasting value. Ease
of installation. Everything you look for in direct-
coupled actuators hinges on quality. And quality
engineering is what makes Honeywell’s complete
line of actuators the top performers in the industry.
Our global engineering team designs and tests
our direct-coupled actuators to exceed rigorous
global standards — and to meet Honeywell’s own
demanding life testing.
But we don’t stop there. Thanks to our continuous
improvement process, Honeywell actuators are now
easier than ever to install. You’ll also benefit from
consistent wiring regardless of signal type, common
accessories and a simplified selection process.
Honeywell’s complete line of building control
products, including valves and actuators, are
already proven in more than three million buildings
worldwide. So when you need spring or non-
spring return actuators for your damper and valve
applications, specify Honeywell. We make precision
easy.
Improve Installation Time
• Self-centeringshaftadapterprovidesmounting
flexibility and greater clamping force.
• Commonwiringamongfamiliesforeverysignal
saves installation time.
Decrease Material Cost
• Detachableaccesscoverallowsdirectwiring
without a junction box.
Reduce Inventory
• Signalmodeswitchadaptsmodelstotwo-
position, floating (tri-state), or modulating
(proportional) applications.
Increase Control and Accuracy
• Morethan200repositionstepsformodulating
models provide precise control.
DIRECT COUPLED ACTUATORS QUICK SELECTION GUIDE
Spring Return,
High Torque
Non-Spring Return,
High Torque
Non-Spring Return,
Low Torque
ML Family
Spring Return,
Low Torque