Schneider Electric 9070 manual Primary Fusing to Meet CE, Secondary Fusing to Meet NEC and CE

Page 41

Industrial Control Transformers

Fuse Protection

Primary Fusing to Meet CE

Recommended Fuse Sizes for the PRIMARY (use time delay fuses) for CE Applications

CE VA Rating

 

 

 

 

Primary Voltage

 

 

 

 

 

 

 

 

 

 

 

 

120 V

208 V

240 V

277 V

 

380 V

416 V

480 V

600 V

 

 

 

 

 

 

 

 

 

 

 

 

25

1/2

3/10

2/10

2/10

 

1/10

1/10

1/10

1/10

 

 

 

 

 

 

 

 

 

 

50

1

6/10

1/2

4/10

 

3/10

3/10

2/10

2/10

 

 

 

 

 

 

 

 

 

 

75

1-1/2

8/10

6/10

6/10

 

4/10

4/10

3/10

3/10

 

 

 

 

 

 

 

 

 

 

100

2

1-1/8

1

8/10

 

6/10

6/10

1/2

4/10

 

 

 

 

 

 

 

 

 

 

150

3

1-8/10

1-1/2

1-1/4

 

8/10

8/10

6/10

6/10

 

 

 

 

 

 

 

 

 

 

160

3-2/10

1-8/10

1-6/10

1-4/10

 

1

8/10

8/10

6/10

 

 

 

 

 

 

 

 

 

 

200

4

2-1/4

2

1-8/10

 

1-1/4

1v1/8

1

8/10

 

 

 

 

 

 

 

 

 

 

250

3-2/10

3

2-1/2

2

 

1-6/10

1-1/2

1-1/4

1

 

 

 

 

 

 

 

 

 

 

300

4

3-1/2

3

2-1/2

 

1- 8/10

1-8/10

1-1/2

1-1/8

 

 

 

 

 

 

 

 

 

 

500

6-1/4

4

3-2/10

4-1/2

 

3-2/10

3

2-1/2

2

 

 

 

 

 

 

 

 

 

 

630

10

6

5

4-1/2

 

4-1/2

4-1/2

3-1/2

3

 

 

 

 

 

 

 

 

 

 

1000

12

8

6-1/4

6

 

4

4

3-2/10

4

 

 

 

 

 

 

 

 

 

 

1500

15

12

10

9

 

6-1/4

6

5

4

 

 

 

 

 

 

 

 

 

 

2000

20

12

12

12

 

8

8

6-1/4

5

 

 

 

 

 

 

 

 

 

 

3000

n/a

30

25

20

 

15

15

12

12

 

 

 

 

 

 

 

 

 

 

NOTE: Recommended fuse sizes according to testing, EN 60-742.

Secondary Fusing to Meet NEC and CE

Recommended Fuse Sizes for the SECONDARY to Meet NEC and CE

 

 

 

24 Volts

 

120 Volts

 

240 Volts

 

VA

 

 

 

 

 

 

 

 

 

 

Secondary

 

Fuse Rating

Secondary

 

Fuse Rating

Secondary

 

Fuse Rating

 

 

 

 

 

 

 

Current Rating

Current Rating

Current Rating

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

25

 

1.04

 

8/10

0.21

 

3/10

0.10

 

15/100

 

 

 

 

 

 

 

 

 

 

 

50

 

2.08

 

3

0.42

 

6/10

0.21

 

3/10

 

 

 

 

 

 

 

 

 

 

 

75

 

3.13

 

5

0.63

 

1

0.31

 

1/2

 

 

 

 

 

 

 

 

 

 

 

100

 

4.17

 

6

0.83

 

1-1/4

0.42

 

6/10

 

 

 

 

 

 

 

 

 

 

 

150

 

6.25

 

10

1.25

 

2

0.63

 

1

 

 

 

 

 

 

 

 

 

 

 

200

 

8.33

 

12

1.67

 

2-1/2

0.83

 

1-1/4

 

 

 

 

 

 

 

 

 

 

 

250

 

10.42

 

15

2.08

 

3

1.04

 

1-3/4

 

 

 

 

 

 

 

 

 

 

 

300

 

12.50

 

20

2.50

 

4

1.25

 

2

 

 

 

 

 

 

 

 

 

 

 

350

 

14.58

 

20

2.92

 

5

1.46

 

2-1/2

 

 

 

 

 

 

 

 

 

 

 

500

 

20.83

 

30

4.17

 

7

2.08

 

3

 

 

 

 

 

 

 

 

 

 

 

750

 

n/a

 

n/a

6.25

 

10

3.13

 

5

 

 

 

 

 

 

 

 

 

 

 

1000

 

n/a

 

n/a

8.33

 

12

4.17

 

7

 

 

 

 

 

 

 

 

 

 

 

1500

 

n/a

 

n/a

12.50

 

15

6.25

 

10

 

 

 

 

 

 

 

 

 

 

 

2000

 

n/a

 

n/a

16.67

 

20

8.33

 

12

 

 

 

 

 

 

 

 

 

 

 

NOTES:

•Recommended fuse sizes according to NEC Article 450-3.

•Secondary select protection at 125%, if a standard size rating is not available, go to next higher standard size rating.

•Current rating is less than 9 A, select protection at not more than 167%.

41

08/2005

 

 

 

© 1999–2005 Schneider Electric All Rights Reserved

Page 40 Page 42
Image 41
Page 40 Page 42
Contents Industrial Control Transformers Page Product Description Product DescriptionType T Transformers Type T TransformersCE Marking Type T VA RatingsSelection Guide Regulation Chart for Type TSecondary Voltage 95% 90% 85%Source Load Voltage Go To Codes Pages Type T Transformers for 120 Volt LoadsType T Transformers for 24 Volt Loads Custom-Built Type T TransformersOne Primary Tap Two Primary Taps Single DualVolt Control Secondary DimensionsVoltage and Connection Options VoltagesVoltages Connections Catalog Acc Slots Number1 Type T MultiTap TransformersConnections KeyVoltage Voltages Connections Volt SecondaryPrimary Secondary Universal120/240 Volt Secondary Type T Transformers with Dual SecondaryVoltage Voltages CatalogCatalog Acc Slots Number1 Key Catalog Acc Type T Transformers with 24 Volt SecondaryNumber1 Key 9070T50D19 Type T Units with Dual 12/24 Volt Secondary Amps Multiple SecondaryMultiple Secondary Only Type T Units with Dual 24/120 Volt Secondary Tapped Units120 Slots Only Catalog 115115V 24V Acc9070T50D114 B D a B 150 Exceed Primary Max 200 9070T200t 120 114 0PF 100% 75% 50% 25% 60HZ 50HZ Type T Performance DataWatts LoadType T Special Quote Request Sheet Type EO Transformers Regulation Chart for Type EOType EO Transformers Type EO VA RatingsType EO Transformers for 24 Volt Loads Type EO Transformers for 120 Volt LoadsCatalog Slots Number Voltage Voltages Catalog Slots Number19070EO17 t Voltages Connections Catalog Core Coil FL Total Reg Eff BTU/hr Type EO Performance Data0PF 100% 75% 50% 25% 60HZ Inrush x FL RMSClass 9070 Type EL, KL Transformers with LeadsTransformers with Leads Fuse Protection Matrix for Choosing Proper Fuse ConfigurationFuse Protection H3 H2 X2X1 H1H4 H1H4 H3 H2 Fuse Protection Options Description of Accessory KeysClass Type VA Accessory Key Description AccessoriesVA Accessory Key Fingersafe Covers not supplied with unitVolts Primary Fusing to Meet NECVolts Secondary Fusing to Meet NEC and CE Primary Fusing to Meet CERecommended Fuse Sizes for the Secondary to Meet NEC and CE Volts Secondary Fuse RatingVolt Control Secondary-Primary and Secondary Fuse Block Type TF Transformers9070TF25D20 Primary Fusing Field Installed Fuse OptionsField Installed Fuse Options R01A R01B Primary and Secondary Fusing R11A R11B R12A R12B Secondary Fusing S22A S22B SF25A SF25B AP1 AP2 Secondary Fuse Clips Jumper Fuse ClipTerminal Blocks Example of Series and Parallel Connections ApplicationApplication Example of a typical application SolutionTechnical Data Question Answer Frequently Asked QuestionsFrequently Asked Questions Selecting a 9070 Type T control transformer? Schneider Electric USA
Top Page Image Contents