AC Controls

Magnetic Contactors

General

Applications

Class 40 industrial magnetic contactors are designed for electrical loads such as heating, lighting, transformer and capacitor switching, and AC motor starting.

They control motors already protected by inherent or other types of overload devices. Used with appropriate pilot con- trol, a contactor provides a choice of undervoltage protection or release.

Class 40 contactors Size 0 thru 6 feature carefully wound coils encapsulated to seal out moisture. Encapsulation also promotes heat transfer and resists electrical, mechanical, and thermal stresses.

Features

Horsepower rated contactors are available in NEMA sizes 00 through 6, plus four Siemens Furnas Half Sizes: 13⁄4, 21⁄2, 31⁄2, and 41⁄2. These contactors are available as an open type or in NEMA 1, 3, 4, 4X, 7 & 9, or 12 enclosures. These con- tactors can also be used on capacitor and transformer switching applications.

Resistance heating contactors are available in 11 sizes from 10 through 350 amperes in 2- and 3-pole models and in 4 sizes in 4-pole models.

Lighting contactors are available in 11 sizes from 20 through 600 amperes in 2- and 3-pole models and in 3 sizes in 4- pole models. Lighting contactors are especially designed to switch ballast type, tungsten, and other discharge type lighting loads. These contactors may be controlled by timers and other pilot devices.

These contactors are also available with a DC coil and rectifier for reduction of AC hum in noise-sensitive areas such as hos- pitals, schools, and similar locations.

For information and availability of mechanically held lighting contactors, contact your local sales office.

Compact Lighting ContactorSize 0–13/4

Table 15.13

Coil Data

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Inrush

 

 

Normal

 

Class

 

 

 

 

 

Volts

(Open Magnet)

 

(Sealed Magnet)

Size

Watts

 

 

60Hz

Amps

VA

 

Amps

VA

 

 

 

 

24

2.63

 

0.37

 

 

 

 

 

120

0.59

 

0.08

 

 

13.3

 

 

208

0.34

70

0.05

10

00

 

 

 

 

240

0.305

0.045

 

 

 

 

277

0.25

 

 

0.03

 

 

 

 

 

 

 

480

1.49

 

0.02

 

 

 

 

 

600

0.121

 

0.02

 

 

 

 

 

24

9.08

 

1.04

 

 

 

 

 

120

1.82

 

0.21

 

0

8.6

 

 

 

 

208

1.05

218

0.12

25

thru

 

 

240

0.91

0.105

21/2

 

 

 

277

0.79

 

0.090

 

 

 

 

 

 

 

480

0.45

 

0.052

 

 

 

 

 

600

0.36

 

0.042

 

 

 

 

 

24

12.90

 

1.08

 

 

 

 

 

120

2.58

 

 

0.217

 

 

14

 

 

208

1.49

310

 

0.125

26

3, 31/2

 

 

 

 

240

1.29

0.108

 

 

 

 

277

1.12

 

0.094

 

 

 

 

 

 

 

480

0.646

 

0.054

 

 

 

 

 

600

0.516

 

0.043

 

 

 

 

 

120

4.25

 

0.425

 

 

 

 

 

 

 

208

2.45

 

0.245

 

4

22

 

 

 

 

240

2.14

510

0.215

51

 

 

277

1.77

0.183

 

 

 

 

 

 

 

 

 

 

 

 

480

1.08

 

0.112

 

 

 

 

 

600

0.85

 

 

0.085

 

 

 

 

 

120

12.65

 

0.96

 

41/2, 5

63

 

 

240

6.32

1518

0.48

116

 

 

480

3.16

0.24

 

 

 

 

 

 

 

 

 

 

600

2.53

 

 

0.193

 

 

 

 

 

240

1.45

 

0.25

 

6

40

 

 

480

0.73

350

 

0.12

60

 

 

 

 

 

600

0.58

 

0.10

 

Table 15.14 Reference Literature

15

AC Controls

Instruction Sheets and Replacement Parts

 

NEMA

 

Motor Matched

 

 

 

Size

 

Half Size

Instruction Sheet

Replacement Parts

00

 

—

PM-60.1

14-GBG

0-1

 

13/4

PM-60.1

14-GEP

2

 

21/2

PM-60.1

14-GFP

 

3

 

31/2

PM-60.1

14-GHP

4

 

 

PM-60.1

14-GJG

5

 

41/2

PM-60.1

14-GKF-B

 

6

 

 

PM-60.1

14-GMF-B

 

Class 21 Lighting Contractor

 

 

21-GWE

 

Competitive Product Comparison

 

 

 

 

Size 1 Starters 14-PC2

 

 

 

Furnas The Right Choice Form 1485

Specifying a NEMA Rated Starter Form 1555

292

Siemens Electrical Products and Systems

CSI Section 16160

Specification Guide