460-480 Tyco Electronics, 460-480 Datasheet - Page 104

• Manufacturer Part Number: 460-480
• Description: Voltage Transformer
• Manufacturer: Tyco Electronics
• Series: 460r

Specifications of 460-480

• Turns Ratio: 4
• Transformer Mounting: Chassis
• Voltage Ratio: 480
• Primary Voltages: 480V
• Power Rating: 150VA
• Output Voltage: 120V
• Mounting Type: Foot Mounted
• Transformer Type: Voltage
• Lead Free Status / RoHS Status: na

Insulation Level Model 20
Wound Primary:
0.6kV BIL 10kV full wave
Continuous Thermal Current
Rating Factor:
1.33 at 30°C amb., 1.0 at 55°C amb.
• Terminals are brass studs No. 8 – 32
• Order Mounting Bracket Kit
• Approximate weight: 8 lbs
CSA 223647
Approvals
with one flatwasher, lockwasher and
regular nut, for ratios up to 25:5 and
1/4 – 20 studs for higher ratios
104
UL 257877
Model 20 – Wound Primary
Model 20X – Auxiliary Transformer
MODEL 20
The Model 20 is a low ratio wound primary current transformer, suitable for primary
currents up to 50 amperes. It is rated for metering and relaying applications.
The table below lists the most common current ratings. Other ratios are available.
MODEL 20X
ANSI Metering Class: 0.3 B1.8
The Model 20X is an auxiliary transformer for use in the secondary of main current
transformers to change the ratio for metering applications.
Since the Model 20X is used in the secondary of another current transformer it has no
voltage rating. It is given a 2500 Volt 60Hz high potential test. It is designed to be used on
circuits not to exceed 600 Volts to ground or between windings.
** The circuits of up to five secondaries may be totalised. Equal or unequal line current
20–2–XXX
20–4–XXX
Catalogue
Number
RATIO
SUFFIX
20X0100
20X0200
20X0250
20X0500
20X0625
20X1000
20X1250
20X1667
20X2000
20X2395
20X2500
20X2890
20X3000
20X3330
20X3750
20X4000
20X5000
20X5330
Catalogue Number
transformers can be summed with this transformer. Advise the ratios of the line current
transformers to be totalised. Output terminals are X1–X2.
1:5
001
2.5:5
0025 005 0075 010
VA for
1% Class
25.0
125
5:5
Current Ratio
5:0.100
5:0.200
5:0.250
5:0.500
5:0.625
5:1.000
5:1.250
5:1.667
5:2.000
5:2.395
5:2.500
5:2.890
5:3.000
5:3.330
5:3.750
5:4.000
5:5.000
5:5.330
7.5:5
Relay
T10
T20
10:5 15:5 20:5 25:5 30:5 40:5 50:5
Class
015
B0.1
0.3
0.3
020 025 030 040
190X6250
190X7500
190X8000
190X10000
190X12500
190X15000
190X1500–5
190X1667–5
190X2500–5
190X2875–5
190X7500–5
190X10500–5
190X0500–1
190X0923–1
190X0400–10
190XSUM–2**
190XSUM–3**
190XSUM–4**
190XSUM–5**
Catalogue Number
ANSI metering class at 60Hz
*
B0.2
1
⁄
0.3
0.3
4
– 20 stud terminals
*
B0.5
0.6
0.3
*
B0.9
1.2
0.3
050
*
Current Ratio
5:6.250
5:7.500
5:8.000
5:10.000
5:12.500
5:15.000
1.500:5
1.667:5
2.500:5
2.875:5
7.500:5
10.500:5
0.500:1
0.923:1
0.400:10
5+5:5
5+5+5:5
5+5+5+5:5
5+5+5+5+5:5
B1.8
2.4
0.3