Schneider Electric 9070 Primary and Secondary Fusing

Industrial Control Transformers

Field Installed Fuse Options

Primary and Secondary Fusing

R12A

R12B

3.13

2.10

2.39

3.21

2.75

2.07

Contents

Main Class 9070 Industrial Control Transformers Catalog August Page Product Description PRODUCT DESCRIPTION The Global Product OfferingType T The Exceptional Regulation Offering Type EO Transformers with Fuse Block ProtectionTypes TF and EOF TYPE T TRANSFORMERS CE Marking Selection Guide Page Custom-Built Type T Transformers Page Page Page 120 Volt Secondary Universal Figure 4 Type T Transformers with Dual Secondary 120/240 Volt Secondary Type T Transformers with Dual Secondary 120/240 Volt Secondary Page Page Figure 4 Type T Units with Dual 12/24 Volt Secondary MULTIPLE SECONDARY Page Type T Units with Dual 24/120 Volt Secondary (Tapped Units) Page Page Type T Units with Dual 24/120 Volt Secondary (Separate Windings) TYPE T PERFORMANCE DATA TYPE T - SPECIAL QUOTE REQUEST SHEET TYPE EO TRANSFORMERS Selection Guide Type EO Transformers for 24 Volt Loads Page Page Page 24 Volt Control Secondary TYPE EO PERFORMANCE DATA Transformers with Leads TRANSFORMERS WITH LEADS A C Voltage Code FUSE PROTECTION Page Page Fuse Protection Options Protection Example Factory Installed Option(s) Field Installed Option(s) Description of Accessory Keys Catalog Number Accessory Key I Accessory Keys II, III, IV Description 08/2005 19992005 SchneiderEle ctric All Rights Reserved Accessories Class Type VA Accessory Key Fuse Sizing, Description, and Catalog Number (by manufacturer) Size Description Manufacturer Bussman Littlefuse Gould-Shawmut Primary Fusing to Meet NEC If a standard size rating is not available, go to next higher standard rating. Recommended Fuse Sizes for the PRIMARY (use class CC time delay fuses) to Meet NEC 120 Volts 240 Volts 480 Volts 600 Volts Primary Fusing to Meet CE NOTE: Recommended fuse sizes according to testing, EN 60-742. Secondary Fusing to Meet NEC and CE Recommended Fuse Sizes for the PRIMARY (use time delay fuses) for CE Applications Type TF Transformers 120 Volt Control SecondaryPrimary and Secondary Fuse Block Figure 7 FE Figure 8 Type TF Transformers MultiTap for 120 Volt Control SecondaryPrimary and Secondary Fuse Block Figure 7 FE Figure 8 Page Page Primary and Secondary Fusing FB3A FB3B Page Primary and Secondary Fusing R12A R12B Secondary Fusing Page Page AP1 AP2 Secondary Fuse Clips Jumper Fuse Clip Jumper Terminal Blocks 2.77 0.45 0.78 0.88 0.78 0.92 Page Application Example of a typical application Application Technical Data Frequently Asked Questions FREQUENTLY ASKED QUESTIONS Question Answer Frequently Asked Questions Question Answer 08/2005 19992005 SchneiderEle ctric All Rights Reserved