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种类：保护器件 品牌：放电管 型号：T23A250XF4
标称DC火花放电电压（VDC）
250
标称放电电流脉冲∕交流电（kA/A）
20/10
尺寸dxl（毫米）
8x10
脉冲火花放电电压 (@1KV/US）
<600
脉冲火花放电电压 (@100V/US）
<500
容差
±20%
短路弹簧
With short circuit spring
适用
线路保护 ** 其它保护
型号
T23A250XF4
订购代码
B88069X8860B502
Surge arrester B88069X8860B502
3-electrode arrester T23-A250XF4
KB AB E / KB AB PM Issue 06 / 2007-10-18
Please readCautions and warningsand Page 2 of 4
Features Applications
Standard size
Fast response time
High current rating
Stable performance over life
Very low capacitance
High insulation resistance
Reliable failsafe device
RoHS-compatible
Branch exchange (MDF)
Line protection
Station protection
Electrical specifications
DC spark-over voltage 1) 2) 4) 250
± 20
V
%
Impulse spark-over voltage 4)
at 100 V/μs - for 99 % of measured values
- typical values of distribution
at 1 kV/μs - for 99 % of measured values
- typical values of distribution
< 500
< 400
< 600
< 550
V
V
V
V
Service life
10 operations 50 Hz, 1 s 5) 10 A
1 operation 50 Hz, 0.18 s (9 cycles) 5) 50 A
10 operations [5x (+) & 5x (-)] 8/20 μs 5) 20 kA
1 operation 8/20 μs 5) 25 kA
1 operation 10/350 μs 5) 5 kA
300 operations 10/1000 μs 5) 200 A
Insulation resistance at 100 Vdc
4) > 10 GΩ
Capacitance at 1 MHz 4) < 1.5 pF
Transverse delay time 3) < 0.2 μs
Arc voltage at 1 A
Glow to arc transition current
Glow voltage
35
1
200
V
A
V
Weight 2 g
Storage temperature -40 ... +90 °C
Climatic category (IEC 60068-1) 40/ 90/ 21
Marking, blue negative
250 YY O
250 - Nominal voltage
YY - Year of production
O - Non radioactive
