{"product_id":"ma-305","title":"Schneider Electric (Barber Colman) MA-305 Actuator","description":"\u003cp\u003eThe \u003cstrong\u003eSchneider Electric (Barber Colman) MA-305\u003c\/strong\u003e is a robust, heavy-duty \u003cstrong\u003etwo-position actuator\u003c\/strong\u003e engineered for precise on-off control in commercial HVAC systems. Operating on \u003cstrong\u003e24V power\u003c\/strong\u003e with a power consumption of \u003cstrong\u003e25 Watts\u003c\/strong\u003e, this oil-immersed motor delivers \u003cstrong\u003e16 lb-in torque\u003c\/strong\u003e suitable for driving dampers, valves, and specialized sequencing controllers. This unit serves as the certified \u003cstrong\u003edirect replacement for ADDB-1\u003c\/strong\u003e, \u003cstrong\u003eMA-305-0-0-2\u003c\/strong\u003e, and \u003cstrong\u003eMA-305-0-0-3\u003c\/strong\u003e legacy models, ensuring seamless integration into existing \u003cstrong\u003eBarber Colman actuator\u003c\/strong\u003e assemblies. The hydraulic thermal action provides consistent force while allowing for mounting in any orientation, though the \u003cstrong\u003ehorizontal output shaft position\u003c\/strong\u003e is preferred for optimal long-term lubricant distribution. Designed for reliability in demanding environments, the \u003cstrong\u003eMA-305\u003c\/strong\u003e integrates into standard \u003cstrong\u003e24V HVAC control circuits\u003c\/strong\u003e, providing high-torque actuation for air handling units and zone management applications where fail-safe performance is required.\u003c\/p\u003e\n\n\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eField Versatility:\u003c\/strong\u003e Engineered for multi-position mounting, simplifying retrofits in tight mechanical spaces.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDirect Retrofit Compatibility:\u003c\/strong\u003e Replaces discontinued ADDB-1 and MA-305 series models without the need for additional mounting hardware or wiring modifications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnhanced Durability:\u003c\/strong\u003e Features an oil-immersed gear train to minimize internal friction and heat buildup during continuous duty cycles.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandardized Voltage:\u003c\/strong\u003e Operates on common 24 VAC power, making it compatible with a wide range of building automation systems (BAS).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\n\u003cp\u003e\u003cstrong\u003eIs the MA-305 compatible with floating or proportional control signals?\u003c\/strong\u003e\u003cbr\u003e\nNo, this is a dedicated \u003cstrong\u003etwo-position actuator\u003c\/strong\u003e designed for full open or full closed operation and does not support 0-10V or 4-20mA modulating inputs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I mount this actuator vertically?\u003c\/strong\u003e\u003cbr\u003e\nYes, the unit is rated for installation in any position; however, technicians recommend the \u003cstrong\u003ehorizontal output shaft position\u003c\/strong\u003e to ensure maximum internal component lubrication.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this unit replace the old Barber Colman ADDB-1?\u003c\/strong\u003e\u003cbr\u003e\nYes, the \u003cstrong\u003eSchneider Electric MA-305\u003c\/strong\u003e is the direct spec-for-spec replacement for the ADDB-1 and all MA-305-0-0-X variants.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong style=\"color: red;\"\u003eThis item is not eligible for free shipping.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDisclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.\u003c\/p\u003e","brand":"Schneider Electric","offers":[{"title":"Default Title","offer_id":35655975948,"sku":"MA-305","price":519.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/products\/1_7e54f923-2d9a-41b1-a6b2-9eb66f243162.png?v=1559336232","url":"https:\/\/www.gsistore.com\/products\/ma-305","provider":"GSIstore","version":"1.0","type":"link"}