MIL-DTL-19648/1G
TABLE I. Relay dash numbers and applicable characteristics - Continued.
Operate time
Contact
Normal operate
Operate time
Heater
M19648/1-
seconds range
arrangement
time (N.O.T.)
tolerance 3/
voltage 1/
seconds 2/
137
115
NO
6
3-8
138
115
NO
10
8 - 12
139
115
NO
20
12 - 22
140
115
NO
30
22 - 33
141
115
NO
40
33 - 45
142
115
NO
60
45 - 65
143
115
NO
80
65 - 90
144
115
NO
120
90 - 125
145
115
NO
160
125 - 180
146
115
NC
6
3- 8
147
115
NC
10
8 - 12
148
115
NC
20
12 - 22
149
115
NC
30
22 - 33
150
115
NC
40
33 - 45
151
115
NC
60
45 - 65
152
115
NC
80
65 - 90
153
115
NC
120
90 - 125
154
115
NC
160
125 - 180
155
6.3
NO
180
125 - 180
156
6.3
NC
180
125 - 180
157
28
NO
180
125 - 180
±10% 4/
158
28
NC
180
125 - 180
of N.O.T.
159
115
NO
180
125 - 180
160
115
NC
180
125 - 180
161
230
NO
6
3- 8
162
230
NO
10
8 - 12
163
230
NO
20
12 - 22
164
230
NO
30
22 - 33
165
230
NO
40
33 - 45
166
230
NO
60
45 - 65
167
230
NO
80
65 - 90
168
230
NO
120
90 - 125
169
230
NO
160
125 - 180
170
230
NO
180
125 - 180
171
230
NC
6
3- 8
172
230
NC
10
8 - 12
173
230
NC
20
12 - 22
174
230
NC
30
22 - 33
175
230
NC
40
33 - 45
176
230
NC
60
45 - 65
177
230
NC
80
65 - 90
178
230
NC
120
90 - 125
179
230
NC
160
125 - 180
180
230
NC
180
125 - 180
1/ Operation shall be satisfactory over the frequency range of 0 to 400 Hz true rms.
2/ Basic time for which unit is designed. The timing range is the range of timing adjustment wherein the change in
other operating characteristic is at a minimum considered acceptable for normal usage.
3/ Tolerance at rated heater voltage and room temperature. Voltage variation or temperature extremes will result in
additional timing tolerance.
4/ Tolerance ±10% but not less than .4 seconds in N.O.T. time range of 3 to 10 seconds. Not less than 2 seconds in
N.O.T. time range above 12 to 180 seconds.
5
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