LB series
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Catalog excerpts

LB Series Electric Actuators The LB-Series is available in several basic designs with a wide variety of configurations from which to select torque and speeds to meet specific application requirements. These rugged and uncomplicated actuators provide a practical and reliable method for turning any mechanism 90˚. Torques range from 540 inch-pounds to 54,000 inch-pounds (6.25 to 625 kilogram-meters). Electrical models are available in 115 VAC-50/60 Hz single phase, 200 VAC-50/60 single phase; and 220/440 VAC-50/60 Hz three phase. Models are available for on/off modulating control. Listed below are performance specifications for a limited sampling of LBSeries electric actuators. This product family is available with a such a variety of options and features that they can not be represented in this catalog. Options such as positioners, transmitters, special enclosure ratings, extra switches, or motor voltages are optionally available. Contact Conbraco’s Actuator Engineering Department for the proper actuator to fit non standard or unique requirements. LB Series Electric Actuator Performance Data L-B Series Rotating Speed Power Requirements 30% Duty Cycle 115VAC 1 Ph 60Hz Contact factory for part numbers of actuators with options & other voltages NOTES: • Operating speed is based on an actuator operating at rated output torque. Actual operating speed will vary depending on actual output torque. • All torque and speed ratings are based on a plus or minus 10% motor voltage variation. • All torque ratings represent the maximum torque available during both breakaway (start) and run (dynamic) conditions. • Each actuator is supplied, as standard, with a 30% duty cycle, F insulation, TENV design motor rated for 360 starts per hour at 104˚F. • All actuators are NEMA 4 rated as standard. Many are optionally available with additional ratings, such as, explosion proof or submersible, etc., to meet special service requirements. • All actuators utilize a self-locking gear train design and have provision for manual override. • All actuators have both electrical and mechanical travel stop provisions. • FQ Series are Spring Return Failsafe models. Contact factory for model number and price (not l

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LB Series Actuator Dimensions Types OA8 and OA15 Standard specification: Weatherproof NEMA 4, with two adjustable SPDT limit switches; with built-in motor thermal cutouts, with handwheel for manual operation. Duty rating 30%. Female socket dimension = .748 square Types AT25 and AT 5 0 Standard specification: Weatherproof to NEMA 4, fitted with two adjustable SPDT travel limit switches (one for each extreme position); two SPDT torque limit switches (one for each direction of rotation) and with handwheel for manual operation.Duty rating 30%. Net weight: 40 lbs. AT25 female socket dimension =...

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Standard specification: Weatherproof to NEMA4, fitted with two adjustable SPDT travel limit switches (one for each extreme position); two SPDT torque limit switches (one for each direction of rotation) and with handwheel for manual oper- ation. Duty rating 30%.

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