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T-Bar Hermetically Sealed Relays
881/981 Relays
887/987 Magnetic Latching Relays
T-Bar Hermetically Sealed Multipole Relays offer contact protection against corrosive atmospheres, splashing water, sand, dust, salt spray and altitude changes. Switching and operating specifications and reliability are identical in all T-Bar Relays because the same switching wafers and actuators are used.
Standard T-Bar Relays are installed in hermetically sealed metal enclosures, using glass-to-metal sealed connectors. The enclosure is backfilled with an inert gas to protect the relay for shipboard, ground support and selected airborne applications. The glass sealed termination mates with MS connectors. Pulse operated magnetic latching relays are available. Standard switching configurations are: 24C, 36A, 48A, 34C, 51C.
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TYPE I CONNECTOR MOUNTING
TYPE II CONNECTOR MOUNTING
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| MODEL NO. |
NO. OF POLES
& CONTACT FORM |
DIMENSIONS |
| A |
B |
C |
| 881/981 |
12C |
2-45/64 |
2-5/8 |
25/32 |
| 887/987 |
12C |
3-1/4 |
2-5/8 |
25/32 |
881/981
887/987 |
24A
24C
34C
36A
48A
51A
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3-21/32
3-21/32
4-1/16
4-1/16
4-15/32
4-7/8 |
2-5/8
2-5/8
2-25/32
2-5/8
2-25/32
2-25/32 |
25/32
1-5/32
1-5/32
1-5/32
1-5/32
1-5/32 |
| MATING CONNECTOR CHART (crimp type contact except as noted) |
| TYPE OF CONN. MTG |
NO. OF PINS |
NO. OF POLES AND CONTACT CONFIGURATION |
WINCHESTER |
CONTINENTAL |
| CONNECTOR |
CONTACTS |
l
l
l
ll
ll
ll |
50
75
104
50
75
104 |
12C & 24A
24C & 36A
34C, 48A & 51A
12C & 24A
24C & 26A
34C, 48A & 51A |
MRAC50S-2020
MRAC75S-2020
MRAC50SJT-2020
MRAC75SJT-2020
* |
25-50SW
25-75SWG
C104-20SWG-MME
25-50SSK
25-75SSK
C104-20SWS-MME |
2500-S4A20
2500-S4A20
(SOLDER)
2500-S4A20
2500-S4A20
(SOLDER) |
| MATING CONNECTOR CHART (wire wrap) .045 SQ. POST |
l
l
l
ll
ll
ll |
50
75
104
50
75
104 |
12C & 24A
24C & 36A
34C, 48A & 51A
12C & 24A
24C & 36A
34C, 48A & 51A |
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W50SW-MME
W75SWG-MME
W104SWG-MME
W50SSK56-MME
W75SSK56-MME
W104SSK56-MME
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