MS27714F
REQUIREMENTS:
Dash numbers and general characteristics: See table I.
TABLE I. Dash numbers and general characteristics.
Part or Identifying Number |
Coil type |
Terminal type |
Auxiliary contacts |
Maximum weight (pounds) |
MS27714-1 MS27714-2 |
dc ac |
Lug Lug |
Yes Yes |
2.5 2.5 |
Contact data:
Load ratings: See table II.
Initial contact voltage drop: 0.150 volt maximum. After life: 0.175 volt.
Overload current (NO): 800 amperes. Rupture current (NO): 1,000 amperes.
TABLE II. Rated contact load and cycles (amperes per pole).
|
Type of load |
Life operating cycles x 103 |
28 V dc |
115 V ac, 1 phase |
1/ 115,200 V ac, 3 |
1/ 240/416 V ac, 3 |
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Main |
Aux |
Main |
Aux |
Main |
Main |
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NC |
NC |
NC |
NC |
400 Hz |
60 Hz |
400 Hz |
60 Hz |
400 Hz |
60 Hz |
400 Hz |
60 Hz |
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Resistive |
50 |
75 |
10 |
10 |
75 |
50 |
10 |
10 |
75 |
50 |
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Inductive |
50 |
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Inductive |
10 |
75 |
10 |
10 |
75 |
10 |
75 |
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Motor |
50 |
75 |
5 |
5 |
75 |
5 |
75 |
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Lamp |
1 |
1 |
1 |
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Transfer load 2/ |
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Mechanical life, reduced load |
200 |
18.75 |
2.5 |
2.5 |
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Mixed loads |
50 |
5 |
0.1 |
0.1 |
5 |
0.1 |
5 |
5 |
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1/ 115/200 V ac and 240/416 V ac for 400 Hz ratings: absence of values indicates that the relay may not be suitable for 3 phase applications.
2/ Transfer load indicates that the relay is suitable for transfer between unsynchronized ac power supplies at the rating indicated.
Coil data: See table III. Duty rating: Continuous.
RFI specification: MIL-STD-461 (applicable to coil circuits of ac operated relays).
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