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| This is an A.C. immune, tractive armature, D.C. Neutral track relay designed for use in railway signalling D.C. track circuits in 50 Hz electrified traction areas. The contacts are Silver Impregnated Graphite to Silver. The relay conforms to BRS Spec.939A and 966 Appendix F2. |
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| The following table shows the available range: |
| Description of Relay |
Nominal Working Volts |
Contacts |
Coil Resistance at 20˚C ohms |
Operating current (mA) |
Minimum % release |
Interlocking code pin |
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Min. |
Max. |
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| UTA2 |
1.4 |
2F.1B |
9 ± 10% |
120 |
140 |
68 |
FGHKX |
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Contact layouts (Rear View) |
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