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Rotary Actuators

MSxx03 27 lb-in. and MSxx05 44 lb-in. Spring Return Direct Coupled Actuators

MS3103, MS3105, MS4103, MS4105, MS7403, MS7405, MS7503, MS7505, MS8103, MS8105 Spring Return Direct Coupled Actuators (DCA) are used within heating, ventilating, and air-conditioning (HVAC) systems.

Overview

MS3103, MS3105, MS4103, MS4105, MS7403, MS7405, MS7503, MS7505, MS8103, MS8105 Spring Return Direct Coupled Actuators (DCA) are used within heating, ventilating, and air-conditioning (HVAC) systems. They can drive a variety of quarter-turn, final control elements requiring spring return fail-safe operation.

Applications include volume control dampers, mounted directly to the drive shaft or remotely (with the use of accessory hardware), quarter-turn rotary valves, such as ball or butterfly valves mounted directly to the drive shaft and linear stroke globe or cage valves mounted with linkages to provide linear actuation.

Features & Benefits:
  • Brushless DC submotor with electronic stall protection on all models
  • Self-centering shaft adaptor (shaft coupling) for wide range of shaft sizes
  • Models available for use with two-position, SPST, line- or low-voltage controls
  • Models available with combined floating and modulating control in a single device
  • Models available with an internal end switch
  • Access cover to facilitate connectivity
  • Durable plastic housing with built-in mechanical end limits
  • Spring return direction field selectable
  • Shaft position indicator and scale
  • Integral 1/2 in. NPSM conduit connection on some models
Certifications:
  • UL (cUL) listed
  • CE EMC 2004/108/EC
  • CE Certification Low Voltage Directive 2006/95/EC
  • IEC 60730-1 and Part 2-14
  • C-Tick N314
  • Plenum rated per UL873
  • UL1097 for Double Insulation
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Product Number
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SKU
Description
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MS3103J1030/U
Direct Coupled Actuator, Spring Return, 27 lb-in, 3 Nm, 24 Vac, Sylk Enabled
alt
MS3103K1050/B
Direct Coupled Actuator, Spring Return, 27 lb-in, 3 Nm, 24 Vac, Sylk Enabled, Special for Carrier, Bulk Pack
alt
MS3103K1050/U
Direct Coupled Actuator, Spring Return, 27 lb-in, 3 Nm, 24 Vac, Sylk Enabled, Special for Carrier
alt
MS3105J3030/U
Direct Coupled Actuator, Spring Return, 44 lb-in, 5 Nm, 24 Vac, Sylk Enabled
alt
MS3105K3050/B
Direct Coupled Actuator, Spring Return, 44 lb-in, 5 Nm, 24 Vac, Sylk Enabled, Special for Carrier, Bulk Pack
alt
MS3105K3050/U
Direct Coupled Actuator, Spring Return, 44 lb-in, 5 Nm, 24 Vac, Sylk Enabled, Special for Carrier
alt
MS3105K3051/B
Direct Coupled Actuator, Spring Return, 44 lb-in, 5 Nm, 24 Vac, Sylk Enabled, Special for Rheem, Bulk Pack
alt
MS3105K3052/B
Direct Coupled Actuator, Spring Return, 44 lb-in, 5 Nm, 24 Vac, Sylk Enabled, Special for Goodman, Bulk Pack
alt
MS3105K3063/B
Direct Coupled Actuator, Spring Return, 44 lb-in, 5 Nm, 24 Vac, Sylk Enabled, Special for Lennox, Bulk Pack
alt
MS3105K3064/B
Direct Coupled Actuator, Spring Return, 44 lb-in, 5 Nm, 24 Vac, Sylk Enabled, Special for Bard, Bulk Pack
Image
SKU
Description
alt
MS3103J1030/U
Direct Coupled Actuator, Spring Return, 27 lb-in, 3 Nm, 24 Vac, Sylk Enabled
alt
MS3103K1050/B
Direct Coupled Actuator, Spring Return, 27 lb-in, 3 Nm, 24 Vac, Sylk Enabled, Special for Carrier, Bulk Pack
alt
MS3103K1050/U
Direct Coupled Actuator, Spring Return, 27 lb-in, 3 Nm, 24 Vac, Sylk Enabled, Special for Carrier
alt
MS3105J3030/U
Direct Coupled Actuator, Spring Return, 44 lb-in, 5 Nm, 24 Vac, Sylk Enabled
alt
MS3105K3050/B
Direct Coupled Actuator, Spring Return, 44 lb-in, 5 Nm, 24 Vac, Sylk Enabled, Special for Carrier, Bulk Pack
alt
MS3105K3050/U
Direct Coupled Actuator, Spring Return, 44 lb-in, 5 Nm, 24 Vac, Sylk Enabled, Special for Carrier
alt
MS3105K3051/B
Direct Coupled Actuator, Spring Return, 44 lb-in, 5 Nm, 24 Vac, Sylk Enabled, Special for Rheem, Bulk Pack
alt
MS3105K3052/B
Direct Coupled Actuator, Spring Return, 44 lb-in, 5 Nm, 24 Vac, Sylk Enabled, Special for Goodman, Bulk Pack
alt
MS3105K3063/B
Direct Coupled Actuator, Spring Return, 44 lb-in, 5 Nm, 24 Vac, Sylk Enabled, Special for Lennox, Bulk Pack
alt
MS3105K3064/B
Direct Coupled Actuator, Spring Return, 44 lb-in, 5 Nm, 24 Vac, Sylk Enabled, Special for Bard, Bulk Pack