Cut Sheet
V7-T7-24 Volume 7—Logic Control, Operator Interface and Connectivity Solutions CA08100008E—July 2015 www.eaton.com
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7.1
Industrial Control Transformers
Trans for mers
Acceptable Rating of Primary Overcurrent Protection
for CE Marked Control Transformers
1
Acceptable Maximum Rating of Secondary
Overcurrent Protection
1
Regulation Data Chart
Notes
1
For values over 6.3A, use 10 x 38 mm timelag (IEC - 269-3-1). T
a
= 40°C control type.
2
For units with Class 105°C insulation system.
3
For units with Class 130°C insulation system.
4
For units with Class 180°C insulation system.
To comply with NEMA standards that require all magnetic devices to operate successfully at
85% of rated voltage, the 90% secondary column is most often used in selecting a transformer.
No comparable requirement is available for IEC.
Fuses 13/32 x 1-1/2 Inches (10 x 38 mm) Timelag (IEC 269)
Sec.
Voltage 50 75 100 150 200 250 300 350 500 750
115 2.0 2.0 4.0 4.0 6.0 6.0 8.0 10.0 12.0 20.0
120 2.0 2.0 4.0 4.0 6.0 6.0 8.0 10.0 12.0 20.0
200 1.0 2.0 2.0 4.0 4.0 4.0 4.0 6.0 8.0 12.0
208 1.0 2.0 2.0 4.0 4.0 4.0 4.0 6.0 8.0 12.0
220 1.0 1.0 2.0 4.0 4.0 4.0 4.0 6.0 6.0 10.0
230 1.0 1.0 2.0 4.0 4.0 4.0 4.0 6.0 6.0 10.0
240 1.0 1.0 2.0 4.0 4.0 4.0 4.0 4.0 6.0 10.0
277 0.5 1.0 1.0 2.0 4.0 4.0 4.0 4.0 6.0 8.0
380 0.5 1.0 1.0 2.0 2.0 4.0 4.0 4.0 6.0 6.0
400 0.5 0.5 1.0 2.0 2.0 4.0 4.0 4.0 4.0 6.0
415 0.5 0.5 1.0 1.0 2.0 4.0 4.0 4.0 4.0 6.0
440 0.5 0.5 1.0 1.0 2.0 2.0 4.0 4.0 4.0 6.0
460 0.5 0.5 1.0 1.0 2.0 2.0 4.0 4.0 4.0 6.0
480 0.5 0.5 0.5 1.0 2.0 2.0 4.0 4.0 4.0 6.0
550 0.5 0.5 0.5 1.0 1.0 2.0 2.0 4.0 4.0 4.0
575 0.5 0.5 0.5 1.0 1.0 2.0 2.0 4.0 4.0 4.0
600 0.5 0.5 0.5 1.0 2.0 2.0 2.0 4.0 4.0 4.0
Miniature Fuses 5 x 20 mm Timelag (IEC 127-2/III)
Sec.
Voltage 50 75 100 150 200 250 300 350 500 750
23 2.50 4.00 5.00 8.00 10.0 12.00 16.00 16.00 25.00 —
24 2.50 4.00 5.00 8.00 10.0 12.00 16.00 16.00 25.00 32.00
25 2.50 4.00 5.00 8.00 10.0 12.00 16.00 16.00 25.00 32.00
90 0.63 1.00 1.25 2.00 2.50 3.15 4.00 4.00 6.30 10.00
95 0.63 0.80 1.25 1.60 2.50 3.15 4.00 4.00 6.30 8.00
100 0.50 0.80 1.00 1.60 2.00 2.50 3.15 4.00 5.00 8.00
110 0.50 0.80 1.00 1.60 2.00 2.50 3.15 4.00 5.00 8.00
115 0.50 0.80 1.00 1.60 2.00 2.50 3.15 3.15 5.00 8.00
120 0.50 0.63 1.00 1.25 2.00 2.50 2.50 3.15 5.00 6.30
220 0.25 0.40 0.50 0.80 1.00 1.25 1.60 1.60 2.50 4.00
230 0.25 0.40 0.50 0.80 1.00 1.25 1.60 1.60 2.50 4.00
240 0.25 0.32 0.50 0.63 1.00 1.25 1.25 1.60 2.50 3.15
Transformer
VA Rating
Inrush VA at 20% Power Factor
NEMA/IEC
95% Sec. Voltage
NEMA/IEC
90% Sec. Voltage
NEMA/IEC
85% Sec. Voltage
25
2
100/— 130/— 150/—
50
2
170/190 200/220 240/270
75
2
310/350 410/460 450/600
100
2
370/410 540/600 730/810
150
3
780/850 930/1030 1150/1270
200
3
810/900 1150/1270 1450/1600
250
3
1400/1540 1900/2090 2300/2530
300
3
1900/2090 2700/2970 3850/4240
350
3
3100/3410 3650/4020 4800/5280
500
3
4000/4400 5300/5830 7000/7700
750
3
8300/9130 11,000/12,100 14,000/15,400
1000
3
15,000/16,500 21,000/23,000 27,000/29,500
1000
4
9000/9900 13,000/14,300 18,500/20,300
1500
4
10,500/11,500 15,000/16,500 20,500/22,500
2000
4
17,000/18,900 25,500/27,300 34,000/36,400
3000
4
24,000/25,700 36,000/38,500 47,500/50,200
5000
4
55,000/58,800 92,500/98,900 115,000/122,000