• Dripproof, Dripproof separately ventilated,
  TEFC, and Totally Enclosed Non-Ventilated (TENV)
• 1.0 Service Factor, continuous duty
• Rolled steel frames 210 - 5010AT
• Class H insulation, NEMA rated
• Reduced armature inertia

 

Product Overview
The U.S. Electrical Motors' DC motor plant has been producing quality DC motors and generators for more than 90 years. USEM DC Motor are the right choice in your application because close attention to quality in both design and manufacturing accounts for our long history of reliable, trouble-free operation of these outstanding motors.

Every USEM motor includes these quality features as standard:

• Class H insulation materials used throughout, although the motors themselves are conservatively rated for Class F temperature rise.
  
• Specifically designed for use with solid state rectified power. This means less heating, greater thermal capacity and smoother commutation.
  
• Reduced armature inertia enabling faster response for process control work.

The USEM DC motor product line includes a complete line of accessories and modifications:

Special field and armature voltages
Field controlled speed range
Shaft modifications
Tachometers
Brakes
Blowers
Thermostats
Tropical Protection

Service
USEM carries a complete stock of DC motors and accessories to provide unsurpassed product availability, prompt delivery, and fast service response. A nationwide network of authorized service shops ensures prompt turnaround time for repairs.

Integral Horsepower D.C. Motor

Suitable For Single Phase Rectified Power - 50/60Hz

HP	Speed RPM		Dripproof Frames	TENV Frames
	Base	Top
1	1750 1150	2050 1380	189AT 189AT	189AT 189AT
1.5	2500 1750 1150	2500 2050 1380	189AT 189AT 189AT	189AT 189AT 189AT
2	2500 1750 1150	2500 2050 1350	189AT 189AT 189AT	189AT 189AT 219AT
3	2500 1750 1150	2500 2050 1350	189AT 189AT 189AT	189AT 189AT 2110AT
5	2500 1750 1150	2500 2050 1350	189AT 189AT 219AT	2110AT 2110AT 2510AT
7.5	1750 1150	2050 1350	219AT 259AT	328AT~ 329AT~
10	1750 1150	2050 1350	2110AT 259AT

~Ratings are TEFC good for constant torque to 60% of base speed

Suitable For Three Phase Rectified Power - 50/60Hz

HP	Speed RPM		DPFG	DPSV	TEFC
	Base	Top	240V or 500V Frame
5	2500 1750 1150 850	3000 2300 2000 1700	189AT 189AT 219AT 2110AT	189AT 189AT 219AT 2110AT	219AT 2110AT 259AT 259AT
7.5	2500 1750 1150 850	3000 2300 2000 1700	189AT 189AT 2110AT 259AT	189AT 189AT 2110AT 259AT	259AT 259AT 259AT 288AT
10	2500 1750 1150 850	3000 2300 2000 1700	219AT 219AT 259AT 259AT	189AT 189AT 259AT 259AT	259AT 259AT 288AT 289ATZ
15	2500 1750 1150 850	3000 2300 2000 1700	219AT 219AT 2510AT 289ATZ	219AT 2110AT 2510AT 289ATZ	259AT 288AT 328AT 366AT
20	2500 1750 1150 850	3000 2300 2000 1700	2110AT 259AT 289ATZ 328AT	2110AT 259AT 289ATZ 328AT	288AT 289ATZ 366AT 368AT
25	2500 1750 1150 850	3000 2300 2000 1700	259AT 2510AT 328AT 329AT	259AT 259AT 328AT 329AT	289ATZ 328AT 368AT 407AT
30	2500 1750 1150 850	3000 2300 2000 1700	259AT 288AT 329AT 366AT	259AT 2510AT 328AT 366AT	366AT 366AT 368AT 409AT
40	2500 1750 1150 850	3000 2300 2000 1700	288AT 289ATZ 366AT 368AT	288AT* 289ATZ 329AT 366AT	366AT 368AT 407AT 409AT
50	2500 1750 1150 850	2700 2300 2000 1700	288AT 328AT 366AT 368AT	288AT 328AT* 366AT 368AT	409AT
60	2500 1750 1150 850	2700 2100 2000 1700	289ATZ 329AT 368AT 409AT	289ATZ 328AT 368AT 368AT	409AT 506AT
75	2500 1750 1150 850	2700 2100 2000 1700	329AT 366AT 369ATZ 409AT	328AT 329ATZ 368AT 407AT	409AT 506AT
100	1750 1150 850	2000 2000 1700	368AT 409AT 504AT	366AT 369ATZ 409ATZ	506AT 508AT
125	1750 1150 850	2000 2000 1700	369ATZ 504AT 506AT	368AT 409ATZ 506AT	506ATZ
150	1750 1150 850	2000 2000 1700	409AT 506AT 508AT	369ATZ 409ATZ 506AT	508AT
200	1750 1150	1900 1800	504AT 506AT	409ATZ 506AT
250	1750 1150	1900 1700	505AT 508AT	504AT 506AT
300	1750 1150	1900 1700	506AT 5010ATZ	505AT 508AT
400	1750 1150	1900 1700	508AT 5010ATZ	508AT 5010ATZ
500	1750 1150	1900 1600		509AT 5010ATZ
600	1750	1900		5010ATZ

NOTES
some TEFC ratings are actually TENV
DPFG= Dripproof Fully Guarded
DPSV= Dripproof Separately Ventilated, frames are valid for Blower Ventilated designs
TEFC= Totally Enclosed Fan Cooled
* frames given are for 240V armatures, 500V frames will vary

Accessories:

AC Tachometer

• Compact Design
• Direct Mounting - Eliminates Critical Coupling Alignment
• Economical
• Immediate Delivery

U.S. Motors' 3111 Series AC tachometer is a medium accuracy, bearingless, direct mount tachometer. Output is 45 or 90 volts nominal per 1000 rpm. The tachometer generator is furnished in a cast aluminum housing which is flange mounted and rabbet fitted to the commutator end shield of the motor.

DC Tachometer

• Type APY
• Virtually Maintenance Free
• Low Ripple <0.5%

The DC tachometer is a medium accuracy, tachometer for speed indicating and/or speed regulating applications. Output is available in 50 or 100 volts DC per 1000 rpm. The tachometer generator is furnished in a steel housing which is flange mounted and rabbet fitted to an adapter bracket on the motor.

Pulse Generators

A variety of pulse generators are available.