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参数资料
| 型号： | R21-4-7.50A-B06IV-V |
| 厂商： | Sensata Technologies/Airpax |
| 文件页数： | 10/16页 |
| 文件大小： | 0K |
| 描述： | CIRCUIT BREAKER ROCKER DP 7.5A |
| 产品目录绘图： | R11 Series |
| 标准包装： | 70 |
| 系列： | SNAPAK® |
| 断路器类型： | 磁性（液力延迟） |
| 电压： | 250VAC |
| 电流 - 跳闸(It)： | 7.5A |
| 极数： | 2 |
| 触动器类型： | 摇臂 |
| 安装类型： | 面板安装 |
| 产品目录页面： | 2441 (CN2011-ZH PDF) |
| 其它名称： | 723-1176 |
OPERATING CHARACTERISTICS
MAXIMUM DCR AND IMPEDANCE
Inrush Pulse Tolerance
Many circuit protector applications involve a
transformer turn-on, an incandescent lamp load,
or a capacitor charge from a DC source. Each of
these applications has one common factor: a
steep transient of very high current amplitude and
short duration. This takes the form of a spike or a
single pulse and is the cause of most nuisance
tripping associated with magnetic circuit
breakers.
Current Ratings
(Amps)
.100
.500
1.00
2.00
3.00
4.00
T/R/PP/PR T/R/PP/PR
DC Resistance 50/60Hz Impedance
175 181
6.34 6.63
1.63 1.69
.400 .425
.175 .188
.103 .106
CR/CPP/CPR
DC Resistance
274
9.77
2.31
.465
.261
.156
SNAPAK will withstand, without tripping, a single
?
pulse of 8 milli-seconds duration (half sine wave
configuration) and peak amplitude of 9 times its
rating without the inertia wheel and 13 times its
rating with an inertia wheel. (Not applicable to
instant trip delays).
5.00
7.50
10.0
12.5
15.0
20.0
.076
.038
.026
.020
.013
.010
.078
.039
.028
.021
.014
.011
.091
.053
.023
.020
.010
.008
25.0
30.0
.004
.003
DCR and Impedance is measured after 1 hour at 100% rated current
using the Voltmeter-Ammeter Method.
PULSE TOLERANCE
Delay
1, 2, 61, 62
3, 4, 61F, 62F
Pulse Tolerance
*9 Times Rated Current
*13 Times Rated Current
* Units above 15 amps are derated to 8 and 12 times rated current
PERCENTAGE OF RATED CURRENT VS TRIP TIME IN SECONDS AT +25°C (VERTICAL MOUNT)
Delay
Instant
Fast
Slow
100%
No Trip
No Trip
No Trip
135%
May Trip
.3 to 7
3 to 70
150% *
.100 Max
.2 to 5
2 to 40
200%
.100 Max
.1 to 2
1 to 15
400%
.100 Max
.03 to .50
.10 to 4.0
600%
.100 Max
.015 to .30
.015 to 2.0
800%
.100 Max
.010 to .150
.010 to .800
* Minimum trip for all instantaneous and 400Hz units.
63
SNAPAK ? Series - Operating Characteristics
http://airpax.sensata.com
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