AC & DC Adjustable Speed Controls and Motors

OUR QUALITY POLICY DRIVEN BY THE VOICE OF THE CUSTOMER AND TOTAL ASSOCIATE INVOLVEMENT, BOSTON GEAR WILL STRIVE, THROUGH CONTINUOUS IMPROVEMENT, TO PROVIDE PRODUCTS AND SERVICES THAT MEET OR EXCEED CUSTOMER EXPECTATIONS. The Second Century of Service Started in 1877 as a machine shop making gear cutting machines, Boston Gear has led the growth of the power transmission industry for more than a century. In its early years, Boston Gear introduced the concepts of gear standardization and stock gears - innovations of enormous benefit to power transmission system designers, specifiers and users. Boston...

RATIOTROL SYSTEMS RATIOTROL PRODUCTS ADD SOPHISTICATED CONTROL TO MOTION Boston Gear, the reliable source for motion control products for over 100 years, has added electronic brains to its mechanical brawn. New Ratiotrol microprocessor-based AC and DC controllers bring operating intelligence to our high-performance speed reducers, gears, motors, bearings, shaft accessories, clutches and brakes. Your advantage is more capable and adaptable motion control systems when you utilize the coordinated components available from Boston Gear. ELECTRONIC DRIVES AND CONTROLLERS From fractional horsepower...

Electrical Products Catalog

PRODUCT SELECTION/REFERENCE GUIDE DC Controllers, Single Phase, Nonregenerative Ratiopax DC Controllers, Single-Phase, Regenerative RBA/VEA-RG Electrical Products Catalog

PRODUCT SELECTION/REFERENCE GUIDE Accessories Remote Stations Tachometer Generator Magnetic Pick-up Analog Meter Digital Meter Clutches and Brakes DC C-Face DC Motors Permanent Magnet Permanent Magnet-Washdown Shunt Wound AC Motors Open Dripproof Totally Enclosed Brake Motors Rigid Base Inverter Duty Electrical Products Catalog

System Selection The proper selection of a Ratiotrol system is based on first determining the load torque, second, the horsepower of the motor and last, the type and configuration of the controller to power the selected motor. Sizing an adjustable speed drive generally is no different than selecting a motor and reducer for a constant speed application. Maximum RPM and maximum torque are used in all calculations involving constant torque applications, which are the most common. Our standard Ratiotrol systems are constant torque drives and therefore, selection is straight forward. Constant horsepower...

Single-Phase Adjustable Speed DC Motor Controllers, Nonregenerative RATIOTROL SYSTEMS Electrical Products Catalog

The purpose of this chart is to provide a general feature comparison of the Boston Gear controllers. When selecting, refer to the specific catalog selection for complete information. S-Standard O-Optional 8 Electrical Products Catalog

RATIOTROL SYSTEMS Ratiopax Controllers are economical, non-modifiable, general purpose controllers featuring static conversion of AC line power to regulated DC for nonregenerative, adjustable speed armature control of shunt-wound and permanent-magnet DC motors. Their lightweight and compact design makes these units an ideal choice for a broad range of industrial applications. Motors suitable for application with these controllers are listed in the DC motor section. DESIGN FEATURES AND FUNCTIONS 1. Enclosure - All models are furnished in a rugged die cast enclosure. Complete control assembly is...

MODEL TYPES Ratiopax controllers are offered as four standard models. Models RP1 and RP2, are unidirectional packaged controllers and Models RP1R and RP2R, are reversible controllers with Forward-Stop-Reverse switch. All are furnished in a totally-enclosed, non-ventilated, rugged, die-cast aluminum alloy enclosure with integral operator controls. ORDER BY CATALOG NUMBER OR ITEM CODE NEMA 1 ENCLOSED CONTROLLER WITH INTEGRAL OPERATOR CONTROLS (1) Does not apply to permanent magnet motors. 10 Electrical Products Catalog

Single-Phase Adjustable Speed DC Motor Controllers, Nonregenerative RATIOTROL SYSTEMS DCX® Series DCXplus® Series 1/12-3 Horsepower Ratiotrol DCX ® controllers statically convert single-phase AC line power to regulated DC for nonregenerative adjustable speed armature control of shunt-wound and permanent magnet DC motors. They are ideal for simple MRO modifications of existing drives or for installation in OEM equipment to provide variable speed motor operation with traditional Boston Gear reliability. These controls feature a number of exclusive advantages. Their built-in adjustment trimpots,...

SPEED REGULATION CHARACTERISTICS (1) Unidirectional models only. 3. Efficiency (Rated speed/rated load) 1. Horsepower... See selection chart Page 6 (1) Does not apply to permanent magnet motors.

RATIOTROL SYSTEMS 1/12-3 Horsepower MODEL TYPES DCX and DCXplus Series controllers are offered as open chassis or enclosed configurations in nine (9) standard models in four (4) functional groups. The DCX® Series chassis units are ideal for the OEM or panel builder who may want to build a custom system by integrating the controller in an enclosure with special logic or auxiliary control devices. The DCXplus® Series enclosed units are offered as complete self-contained functional packages which include power conversion and regulator electronics, AC line protection and integral operator controls. DCX®...

RATIOTROL SYSTEMS Single-Phase Adjustable Speed DC Motor Controllers, Nonregenerative DCX® Series DCXplus® Series 1/12-3 Horsepower DIMENSIONS - DCXplus ENCLOSED .19 DIA MOUNTING HOLES 2 PLACES ON BACK DCXplus Panel–Front DIMENSIONS - HEATSINKS Electrical Products Catalog

ORDER BY CATALOG NUMBER OR ITEM CODE Kit includes screw terminals for all external wiring, one line fuse holder, and an LED power on indicator in an assembly that plugs piggy-back onto chassis model units. (fuse not included) Total height when assembled to DCX102C or DCX202C is 2.12 inches Contactor, Two-Pole with Dynamic Braking DCX-DA (65996) The basic DCX Series chassis controller is designed for Run-Stop unidirectional operation without an armature contactor. This option provides a two-pole armature contactor which is necessary whenever the application requires a positive disconnection of...