MS27997N
TABLE II. Rated contact load (amperes per pole) (case grounded).
Type of load |
Life operating cycles x 3 10 |
28 V dc |
115 V ac, 1 phase |
115/200 V ac, 3 phase 1/ |
See appropriate notes |
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Main |
Aux |
Main |
Aux |
Main |
Aux |
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NO |
NC |
NO |
NC |
400 Hz |
60 Hz |
400 Hz |
60 Hz |
400 Hz |
60 Hz |
400 Hz |
60 Hz |
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Resistive |
50 |
25 |
5 |
5 |
25 |
5 |
25 |
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Inductive |
10 |
25 |
5 |
5 |
25 |
5 |
25 |
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Motor |
50 |
25 |
25 |
25 |
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Lamp |
50 |
1 |
1 |
1 |
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Transfer, load |
2/ |
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Mechanical life reduced current |
100 |
6.3 |
1.25 |
1.25 |
6.3 |
1.25 |
6.3 |
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|
Mixed loads |
50 |
Applicable according to MIL-PRF-6106 |
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1/ Absence of value indicates relay is not rated for 3 phase applications.
2/ Transfer load indicates relay is suitable for transfer between unsynchronized ac power supplies at rating indicated.
TABLE III. Operating characteristics.
PIN MS 27997- |
Coil data |
Time - (milliseconds maximum) |
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Coil |
Rated |
Max |
Max pick-up voltage |
Hold vol- tage 2/ |
Drop out volt- age 2/ |
Oper- ate 3/ |
Rel- ease 4/ |
Contact Bounce 3/ |
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|
Volts 1/ |
Freq Hz |
Res ν ±10% |
Volts |
Amp |
Nor- mal 2/ |
High Temp test |
Cont cur- rent test |
Main |
Aux |
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NO |
NC |
NO |
NC |
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|
D1 |
X1,X2 |
28 |
dc |
51 |
29 |
.6 |
18 |
21 |
22.5 |
7.0 |
1.5 |
25 |
10 |
2 |
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D2 |
X1,X2 |
28 |
dc |
51 |
29 |
.6 |
18 |
21 |
22.5 |
7.0 |
1.5 |
25 |
10 |
2 |
4 |
4 |
|
A1 |
X1,X2 |
115 |
60/ 400 |
N/A |
124 |
.2 |
90 |
100 |
104 |
40 |
10 |
30 |
50 |
2 |
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|
A2 |
X1,X2 |
115 |
60/ 400 |
N/A |
124 |
.2 |
90 |
100 |
104 |
40 |
10 |
30 |
50 |
2 |
4 |
4 |
|
1/ CAUTION: Use of any coil voltage less than rated coil voltage will compromise the operation of the relay.
2/ Over the temperature range.
3/ With rated coil voltage.
4/ From rated coil voltage.
TABLE IV. Vibration levels (sinusoidal).
PIN MS27997- |
Frequency |
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5-10 Hz |
10-55 Hz |
55-750 Hz |
750-1500 Hz |
|
D1 |
.08 DA |
.06 DA |
15 g's |
12 g's |
D2 |
.08 DA |
.06 DA |
10 g's |
10 g's |
A1 |
.08 DA |
.06 DA |
15 g's |
12 g's |
A2 |
.08 DA |
.06 DA |
10 g's |
10 g's |
5
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