Honeywell – MS3103J1030/B 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. 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

Honeywell MS3103J1030/B — 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. Discontinued by Honeywell — no longer in the current range. PartnerPLC sources new, surplus and discontinued Honeywell parts — request a quote for price, condition and lead time.

Specifications