MIL-PRF-39019/2H
TABLE I. Circuit breaker dash numbers and applicable characteristics - Continued.
Dash number 1/
Current
Time delay
Resistance or impedance
rating
(ohms - max) 2/
(amps)
Standard
High
DC
60 Hz
400 Hz
delay
inrush
251
334
12.5
A
0.012
0.013
0.015
252
335
12.5
B
0.012
0.013
0.015
253
---
12.5
C
0.012
0.013
0.015
254
336
15.0
A
0.009
0.009
0.010
255
337
15.0
B
0.009
0.009
0.010
256
---
15.0
C
0.009
0.009
0.010
257
338
20.0
A
0.006
0.006
0.007
258
339
20.0
B
0.006
0.006
0.007
259
---
20.0
C
0.006
0.006
0.007
260
340
1.25
A
0.9
1.0
1.1
261
341
1.25
B
0.9
1.0
1.1
262
---
1.25
C
0.9
1.0
1.1
263
342
1.5
A
0.65
0.70
0.75
264
343
1.5
B
0.65
0.70
0.75
265
---
1.5
C
0.65
0.70
0.75
1/ For configuration 2, add "S" at end of dash number.
2/ The corresponding maximum wattage losses, which in no case shall exceed 3.0 watts, may be calculated as
2
2
I R or I Z.
6
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