Q Style / BR930 Signalling Relays

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  RelayDoc

  The Mors Smitt RelayDoc is designed and customised to provide controlled auditable testing of customer specific BR930/Q-Style signalling relays in accordance with their original BRB design specifications. (more…)
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  ZA – BRB938A, 939A, BRB966 F2 & 968 D.C. neutral track relay

  The relays covered by BRB938A are for use on railways signalling track circuits not electrified on the 50 Hz AC system. The relays covered by BRB939A and BRB966 F2 are for use on railways signalling track circuits electrified on the 50 Hz AC system. The relays covered by BRB968 are for use in circuits with Aster type ‘U’ jointless track circuit equipment where alternating current at industrial frequency may be…
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  ZB – BRB932A AC Immune DC biased line relay

  The relays covered by this data sheet are for use in line circuits where operation of the relay is required to be dependant on the polarity of the current in the coil. They are also suitable when alternating current at industrial frequency may be present in the circuit. Mors Smitt Relays Modular plug in design Non weld contacts Silver and carbon impregnated with silver contact tips Proven reliability Low life…
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  ZH – BRB960 Twin D.C. neutral line relay

  Twin relays are for general railway signalling purposes. Mors Smitt Relays Modular plug in design Non weld contacts Silver and carbon impregnated with silver contact tips Proven reliability Low life cycle cost
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  ZJ – BRB935A & BRB936A D.C. Polarised magnetic stick line relay

  The relays covered by BRB935A are for use where a self latching relay with a separate release winding is required. The relays covered by BRB936A are for use in line circuits where operation of the relay is required to be dependant upon the polarity of the energising current and the contacts are to remain in their last position until the relay is re-energised in the opposite sense. Mors Smitt Relays…
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  ZL – BRB960 Twin double wound D.C. neutral line relay

  Twin relays are for general railway signalling purposes where operation from either of two separate supplies is required. Mors Smitt Relays Modular plug in design Non weld contacts Silver and carbon impregnated with silver contact tips Proven reliability Low life cycle cost
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  ZN – BRB961 Twin D.C. biased A.C. immune relay

  The twin relays are for use in line circuits where operation of the relay is required to be dependant on the polarity of the current in the coil. They are also suitable when alternating current at industrial frequency may be present in the circuit. Mors Smitt Relays Modular plug in design Non weld contacts Silver and carbon impregnated with silver contact tips Proven reliability Low life cycle cost
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  ZP – BRB930 Double wound D.C. neutral line relay

  The double wound relays are for general railway signalling purposes where operation from either of two separate supplies is required. Mors Smitt Relays Modular plug in design Non weld contacts Silver and carbon impregnated with silver contact tips Proven reliability Low life cycle cost
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  ZQ – BRB940A, BRB941A, BRB942 & BRB945 Lamp proving relays

  The relays covered by BRB940A are designed as lamp proving relays where the lamp is energised by a battery or rectified AC supply. The relays covered by BRB941A are designed as lamp proving relays for AC circuits where the relay is connected in series with the lamp. The relays covered by BRB942 are designed as lamp proving relays where the relay is connected in series with the primary winding of…
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  ZS – BRB930, 931A, 933A & 934A D.C. Neutral line relay

  The relays covered by BRB930 are for general railway signalling purposes. The relays covered by BRB931A are for use in line circuits where alternating current at industrial frequency may be present in the circuit. The relays covered BRB933A are for use as DC repeater relays, having a delayed pick-up characteristic to bridge a gap due to loss of shunt or slow drop away of a track relay. These relays are…
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  ZT Timer Modules

  The relay consists of a resistor/capacitor circuit with diodes in a BRB930 series relay case. Mors Smitt Relays Modular plug in design Proven reliability Low life cycle cost
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  ZU – BRB943 A.C. Immune D.C. Biased Contactor Relay

  The relays covered by this data sheet are for use in line circuits where the relay is required to control the motor circuit of a point machine or other similar heavy duty applications and are suitable for use where undesired alternating current at industrial frequency may be present in the circuit. Mors Smitt Relays Modular plug in design Heavy duty front contacts Non weld back contacts Silver and carbon impregnated…