3 - Description 04.05
12 ENGLISH
Siemens AG 7VV3003-8TA74
SICROWBAR 7VV3003 DC-Surge Suppressor Operating Instructions
3.5 Technical data
1. Device:
Operational ambient temperature 0°C to +40°C
Storage and transport temperature
−25°C to +70°C
Installation altitude above sea level 2000m
Environmental class 3K3 DIN IEC 721-3-3 / 04.90
Permissible degree of pollution 2 *) EN50178
Degree of protection IP00 DIN VDE 0470 Teil1 / 11.92 =^ EN 60529
*) Definition of degree of pollution 2:
Under normal conditions, only non-conductive pollution occurs. Occasionally, pollution may become
conductive for a short period of time when the electronic equipment is not in operation.
Igniting voltage:
Voltage at which one of the two thyristors is ignited. This is triggered by means of a BOD element (break-
over diode).
Maximum power pulse current:
Current that can flow at the start of a decay process (as in Fig. 1). The actual limit value depends on the
current waveform (time constant).
Critical voltage gradient:
Maximum voltage rise, which must not be exceeded, between terminals C and D per time interval.
Critical current gradient:
Maximum current rise, which must not be exceeded, per time interval.
I
2
t value:
Corresponds to the curves in Fig. 1 (does not correspond to the datasheet value of the thyristor in question)
Order No. 7VV3003- 5AG32 5BG32 5CG32 5DG32
Igniting voltage V
800
±100 1200 ±100 1600 ±100 2200 ±150
Maximum power pulse current kA 2.5 2.5 2.5 2.5
Critical voltage gradient V/µs 1000 1000 1000 1000
Critical current gradient A/µs 80 80 80 80
I2t value A
2
s 13.6 * 10
6
13.6 * 10
6
13.6 * 10
6
13.6 * 10
6
Dimensions (HxWxD)
(Dimension diagram see
Section 4)
mm 350x265x285 350x265x285 350x265x285 350x265x285
Weight (approx.) kg 17 17 17 17
Order No. 7VV3003- 5EG32 5FG32 5GG32 5HG32
Igniting voltage V
1600
±100 2200 ±150 2600 ±150 3000 ±150
Maximum power pulse current kA 5.8 5.8 5.8 5.8
Critical voltage gradient V/µs 1000 1000 1000 1000
Critical current gradient A/µs 300 300 300 300
I2t value A
2
s 73 * 10
6
73 * 10
6
73 * 10
6
73 * 10
6
Dimensions (HxWxD)
(Dimension diagram see
Section 4)
mm 350x265x285 350x265x285 350x265x285 350x265x285
Weight (approx.) kg 18 18 18 18
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