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Industrial Control Transformers
Fuse Protection
37
08/2005
© 1999–2005 Schneider Electric All Rights Reserved
Application for No Primary protection and Line-to-Neutral Secondary
Example would be 480 to 120 (voltage Code D1)
Primary protection done elsewhere in the circuit
Factory installed options
1. 9070 Type T with S12 suffix or 9070 Type EO with S12 suffix
Secondary Fuse Block - midget fuses
2. 9070 Type T with SF25 suffix
Secondary Fuse Block - glass type fuses
3. 9070 Type T with SF41 suffix
Secondary Fuse Clips mounted on terminal block
Field installed options
1. 9070 Type T:
— Midget Type Fuse Block: 9070FB1A or 9070FB1B
— Midget Type Fuse Clips: 9070SF41A or 9070SF41B (Limited to single secondary only)
— Glass type fuse block: 9070SF25A or 9070SF25B
— Glass type fuse holder: 9070AP2
— Side mounted 2-inch x 9/16-inch: 9070AP1
2. 9070 Type EO:
— Side mounted 2-inch x 9/16-inch: 9070AP1
— Glass type fuse holder: 9070AP2
— Midget type fuse clips: 9070AP3 or 9070AP4
Application for Line-to-Neutral Primary and Line-to-Neutral Secondary
Example would be 277 to 120 (Voltage Code D4)
Factory installed - 9070 Type TF with R11 suffix or 9070 Type EOF with R11 suffix
Field installed - 9070 Type T: 9070R11A or 9070R11B
Application for Line-to-Neutral Primary and no secondary
Example would be 277 to 24 (Voltage Code D24)
Factory installed - 9070 Type TF with R01 suffix or 9070 Type EOF with R01 suffix
Field installed - 9070 Type T: 9070R01A or 9070R01B
X2
H3
X1
H2
H1
H4
X2
H1
X1
H2
X2
X1
H1
H2