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Motor Features

Bulletin 1329R AC Variable-Speed Motors Bulletin 1325R DC Motors .33 to 1250 HP 0.25 to 2 HP

Rugged rolled steel or cast iron construction for open or closed loop PWM drive control. Bulletin 1325R motors feature state-of-the-art, small DC motor technology, including a system which can help extend brush life by four times industry standards. Rugged cartridge brush design allows fast, easy brush inspection.

Variable-Speed Features:

?Protected and totally enclosed fan-cooled motors for a wide variety of speed/torque ratings?TENV and blower-cooled designs are available for constant torque to zero speed ?NEMA Design B characteristics?Low acoustical and electrical noise?Inverter grade insulation system?Insulation system exceeds NEMA MG1 Part 31.40.4.2, with aminimum 1600 V peak at a 0.1 microsecond rise time ?NEMA frame sizes?Severe duty features are available for harsh environments?XP (Explosion-proof) designs are UL listed for inverter duty?Integrally mounted or externally coupled tachometer?UL and CSA component recognized

Variable-Speed Features:

?Permanent magnet fields provide high operating efficiency whileeliminating the need for a field power supply?Class F insulation is rated for 180°C temperatures for superior life?Optimized design provides constant torque over a 20:1 speed rangeon NEMA code K power supply?Starting torques up to 650% of full load rated torque?UL component recognized and CSA approved

Bulletin 1325L DC Motors 1 to 600 HP Bulletin 1329L High-Performance AC Variable-Speed Motors

This third generation of Control-Matched
™ DC motors offers exceptional performance and reliability in rugged applications.

.33 to 900 HP

Unique square laminated frame design provides high-performance in a footprint two to three times smaller than other motors.

Variable-Speed Features:

?Increased power ratings per frame size and high dynamic response ?Four-pole design extends speed ranges, improves torque-per-amp relationship and helps provide smooth, fast response?Square laminated frame design provides exceptional commutationand heat dissipation while requiring a minimum of mounting space?Molded commutator provides dynamic stability to minimize high orlow bars and thermal stress?Integral mounting feet on both end brackets increases rigidity andminimizes vibration?UL component recognized and CSA approved

Variable-Speed Features:

?High torque-to-inertia ratio for exceptional dynamic response?Low audible and electrical noise?Class H insulation durability?Integrally-mounted blower provides constant torque to zero speedwith Force Technology
™ drive control?Inverter grade insulation system?Insulation system exceeds NEMA MG1 Part 31.40.4.2, with aminimum 1600 V peak at a 0.1 microsecond rise time?Rated to withstand 10,000 volts/microsecond dV/dt?Lower KVA/HP reduces drive loading?Low flux saturation reduces nuisance controller tripping caused bypeak currents?UL listed and CSA approved
A wide range of custom drives and motors are available. Contact your local Allen-Bradley representative for options not included in this catalog. TM