Extended Life Small DC Motors

 

Permanent Magnet
1/8-2 HP, Single–Phase DC NEMA 56 C–Face Mounting


| Standard Features | Dimensions | Typical Data |


With more than ninety years of DC motor design experience, Reliance Electric continues its leadership position in the variable speed marketplace by introducing the RPM XL - a new small DC product line incorporating state–of–the–art design improvements. This effort has resulted in a high quality industrial duty product with more customer value and benefits than ever before.


Standard Features

  • Brushes - New cartridge brush holders with brass inserts and stainless steel springs ensure constant pressure on commutator for longer brush life. Brushes can be easily removed for inspection and maintenance. Oversized brushes and commutator help prolong brush life up to four times the industry standard.
  • Permanent magnet fields - Eliminate need for field power supply, reducing installation and maintenance costs. Permanent magnet motors have no field losses, allowing them to attain higher efficiencies than wound field motors and reduce energy costs.
  • TEFC Design - Ensures power matched performance. Cooler operating temperatures result in longer motor life and allow motor to attain constant torque over a 20:1 speed range with a free wheeling diode (Power Code K).
  • High starting torques - Up to 650% of rated full load torque.
  • Tach provisions - Easily obtained from stock kits with C–Face fan covers.
  • Insulation - Class F non–hygroscopic insulation system rated at 180ƒC extends motor life.
  • Bearings - Permanently lubricated double–shielded ball bearings keep dirt out and guard against grease loss.
  • Mounting - Heavy duty, NEMA 56 C–Face frame is available with or without welded base.
  • Conduit Box - Oversized, top–mounted conduit box with F1/F2 conduit connection and permanently marked leads simplifies installation.
  • Finish -Reliance Electric blue–green paint is high–grade, epoxy air–dry enamel with non–toxic rust inhibitors for longer life in industrial environments.
  • Modifications -available to meet specific customer needs include IEC flanges, brakes, and tachometers as well as special shafts and electrical designs.
  • Hardware - Metric hardware and brushes standard.
  • Certifications - U/L component recognized and CSA approval are standard. (U/L File: E54825; CSA File LR 40567.) Motors are manufactured in our ISO 9001–certified plant in Gainesville, GA.
  • Enclosures - Standard and wash–down duty enclosures available from stock for use in a wide range of industrial environments.

Compact Dimensions and Efficient Motor Ratings

FRAME

A

B

C

O

F

P

P’

U

AH

Key

 

 

 

 

 

 

 

 

 

 

SQ

LGTH

 

SE56C

6.38

4.10

12.06

7.81

N/A

7.31

7.10

.625

2.06

.19

1.25

 

ME56C

6.38

4.10

13.06

7.81

N/A

7.31

7.10

.625

2.06

.19

1.25

 

LE56C

6.38

4.10

15.06

7.81

N/A

7.31

7.10

.625

2.06

.19

1.25

 

SF56HC, SG56HC

6.62

5.88

15.06

8.25

2.00

7.31

7.10

.625

2.06

.19

1.25

 

MF56HC, MG56HC

6.62

5.88

16.56

8.25

2.00

7.31

7.10

.625

2.06

.19

1.25

 

LF56HCZ

6.62

5.88

18.12

8.25

2.00

7.31

7.10

.875

2.12

.19

1.38

 

LG56HC

6.62

5.88

18.06

8.25

2.00

7.31

7.10

.625

2.06

.19

1.25

 


Typical Data

TEFC Enclosure; 1750 RPM; PM Field

HP

Voltage
Armature

Frame

F.L. Amps

1/4

90

SE56C

2.7

1/3

90

SE56C

3.7

1/2

90

ME56C

5.2

3/4

90

LE56C

7.6

1

180

MF56HC

4.7

1–1/2

180

LF56HCZ

7.0

2

180

LF56HCZ

9.4


Note: This material is not intended to provide operational instructions.

Appropriate Reliance Electric Industrial Company instruction manuals
and precautions should be studied prior to installation, operation, or
maintenance of equipment.

 

Copyright 1997 Rockwell International, Inc.

 

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