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TF 600
www.schurter.com/PG999
3. Use Agency Specification based on the requirement
Lighting Surge Specifications
Surges are short-duration increases in system voltage due to external events, such as lightning
Telecom Fuses
Telcordia
GR-1089
First Level First Level First Level First Level First Level Second Level
Test 1 Test 2 Test 3 Test 4 Test 5 Test 1
Surge Voltage [V] 600 1000 1000 2500 1000 6000
Surge Current [A]
100
100
100
500
25
500
Waveform [us] 10x1000 10x360 10x1000 2x10 10x360 2x10
Repetitions [each polarity] 25
25
25
10
5
1
2000.0010.xx, 0.5 A * * * *
?
2000.0011.xx, 1.25 A
2000.0012.xx, 2.0 A
?
?
?
?
?
?
?
?
?
?
?
?
■ Equipment under test can not be damaged & must continue to operate properly
* If sufficient series resistance is used, the 0.5 A fuse may pass Test 1-4
TIA-968-A
Type A
Type A
Type B
Type B
(former FCC Part 68) Metallic
Longitudinal
Metallic
Longitudinal
ITU-T K.20
Test
Surge Voltage [V]
Surge Current [A]
Waveform [us]
800
100
10x560
1500
200
10x160
1000
25
5x320
1500
37.5
5x320
Surge Voltage [V]
Surge Current [A]
Waveform [us]
1000
67
10x700
Repetitions [each polarity] 1
2000.0010.xx, 0.5 A Fuse open
1
Fuse open
1
?
1
?
Repetitions [each polarity] 10
2000.0010.xx, 0.5 A 26 A*
2000.0011.xx, 1.25 A
2000.0012.xx, 2.0 A
?
?
?
?
?
?
?
?
2000.0011.xx, 1.25 A
2000.0012.xx, 2.0 A
?
?
■ Fuse can not open during type B events
■ Fuse does not open during test
* If sufficient series resistance is used, the 0.5 A fuse may pass
Power Cross Specifications
A power-cross is an instance where a high-voltage circuit is inadvertently connected to a low-voltage circuit;
for example, a power line can fall onto a telephone line during a storm initiating a power-cross event.
Telcordia
GR-1089
Voltage [Vrms]
First Level First Level First Level First Level First Level First Level First Level
Test 1 Test 2 Test 3 Test 4 Test 5 Test 6 Test 7
50 100 200, 400, 600 1000 see GR-1089 600 440
First Level First Level
Test 8 Test 9
600 1000
Overload Current [A] 0.33 0.17 1
1
0.5 2.2
3
5
Duration
2000.0010.xx, 0.5 A
15 min. 15 min. 60x1 s 60x1 s 60x5 s 30 s 5x2 s
1.1 s 0.5 s
2000.0011.xx, 1.25 A
2000.0012.xx, 2.0 A
?
?
?
?
?
?
? ?
? ?
?
?
?
?
?
?
?
?
■ Fuse not allowed to open
Telcordia Second Level Second Level Second Level Second Level Second Level
ITU-T K.20
Power Power
GR-1089
Test 1 Test 2 Test 3 Test 4 Test 5
Induction Contact
Voltage [Vrms]
120, 277 600
600 100-600 see GR-1089
Voltage [Vrms] 300 250
Overload Current [A] 25
60
7
2.2
Current [A] 0.5 60
Duration
15 min. 5 s
5 s 15 min. 15 min.
Duration 200 ms 15 min.
2000.0010.xx, 0.5 A
?
?
?
?
?
Repetitions 5 1
2000.0011.xx, 1.25 A
?
?
?
? *
?
2000.0010.xx, 0.5 A
? ? *
2000.0012.xx, 2.0 A
?
?
?
? *
?
2000.0011.xx, 1.25 A ?
? *
■ Fuse opens in a safe and controlled manner before wiring simulator fuse (MDL 2.0)
2000.0012.xx, 2.0 A
?
? *
* Fuse does not open during test
■ Fuse does not open during test
* Fuse opens during test
UL 60950 Longitudinal Longitudinal Longitudinal Longitudinal
IEC 60950 Test 1 Test 2 Test 3 Test 4
Voltage [V] 600 600 600 200
Longitudinal
Test 5
120
Metallic
Test 1
600
Metallic Metallic Metallic
Test 2 Test 3 Test 4
600 600 600
Current [A]
40
7
2.2
2.2
25
40
7 2.2 2.2
Time
1.5 s
5 s 30 min. 30 min.
30 min.
1.5 s
5 s 30 min. 30 min.
2000.0010.xx, 0.5 A
?
?
?
?
?
?
?
? ?
2000.0011.xx, 1.25 A
2000.0012.xx, 2.0 A
?
?
?
?
? *
? *
? *
? *
?
?
?
?
?
?
? *
? *
? *
? *
■ Fuse opens in a safe and controlled manner before wiring simulator fuse (MDL 2.0)
* Fuse does not open during test
Fuses
4
The specifications, descriptions and illustrations indicated in this document are based on
current information. All content is subject to modifications and amendments.
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