Signalling & Infrastructure

  • N.S1-P-24-12.0.8 relay – Signalling, post

    The N.S1-P-24-12.0.8 24 VDC instantaneous electro-mechanical vital relay is a track side safety relay for the signalling railway market. It is a dual module « plug-in relay » with positive mechanical keying, equipped with 12 normally open contacts and 8 normally closed contacts. (more…)
  • N.S1-P-24-4.0.4 relay – Signalling, post

    The N.S1-P-24-4.04 24 VDC instantaneous electro-mechanical vital relay is a track side safety relay for the signalling railway market. It is a single module « plug-in relay » with positive mechanical keying, equipped with 4 normally open contacts and 4 normally closed contacts. (more…)
  • N.S1-R-24-4.0.4 relay – Signalling, switch machine motor command

    The N.S1-R-24-4.04 24 VDC instantaneous electro-mechanical vital relay for ‘switch machine motor’ command is a track side safety relay for the signalling railway market. It is a single module « plug-in relay » with positive mechanical keying, equipped with 4 normally open contacts and 4 normally closed contacts. (more…)
  • PO3000 Type Relays

    Mors Smitt manufacture the full range of PO3000 (Post Office) type relays including enclosed Keyswitch style variants, AC & DC Filament Switching Relays, Protection Relays and Telecom Relays used in many industries including Rail and Power Utilities. The high efficiency, proven reliability and compact design of these relays make them admirably suitable for many applications. Various contact materials are available to meet particular circuit conditions, including pure silver, palladium and…
  • QBA1 – AC immune DC biased neutral line relay

    The relays covered by this data sheet (see downloads) 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.…
  • QBBA1 – Twin AC immune DC biased neutral line relay

    The twin relays covered by this data sheet (see downloads) 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…
  • QBCA1 – AC immune DC biased contactor relay

    The relays covered by this data sheet (see downloads) 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…
  • QCJ – DC operated non-safety time delay relay

    The relay units covered by this data sheet (see downloads) are used in a point control circuit to disconnect the contactor coil, if the latter is not otherwise de-energised, within a predetermined time. The time delay provided is sufficient to allow the point machine to complete its normal operation. This is classified as a non-safety relay. Mors Smitt Relays Modular plug in design Non weld contacts Silver and carbon impregnated…
  • QDF3 – LED flasher unit

    The relay covered by this data sheet (see downloads) is a solid state DC diagram flasher unit for flashing the negative line of LED diagrams. Mors Smitt Relays Modular plug in design Proven reliability Low life cycle cost
  • QEC1 – DC lamp proving relay

    The relays covered by this data sheet (see downloads) are designed as lamp proving relays where the lamp is energised by a battery or rectified AC supply. Mors Smitt Relays Modular plug in design Non weld contacts Silver and carbon impregnated with silver contact tips Proven reliability Low life cycle cost
  • QECF1 – DC lamp proving relay – flashing

    The relays covered by this data sheet (see downloads) are designed as lamp proving relays for flashing lamps with a DC supply. Typically BR945 relays are used for flashing road signals at level crossings. Mors Smitt Relays Modular plug in design Non weld contacts Silver and carbon impregnated with silver contact tips Proven reliability Low life cycle cost
  • QECR2 – DC lamp proving relays

    The relays covered by this data sheet (see downloads) are designed as lamp proving relays for 110V DC 12 W LED signalling lamps. These relays are based on the BRB940A specification. Mors Smitt Relays Modular plug in design Non weld contacts Silver and carbon impregnated with silver contact tips Proven reliability Low life cycle cost
  • QECX1 – AC lamp proving relay

    The relays covered by this data sheet (see downloads) are designed as lamp proving relays for AC circuits where the relay is connected in series with the lamp. Mors Smitt Relays: Modular plug in design. Non weld contacts. Silver and carbon impregnated with silver contact tips. Proven reliability. Low life cycle cost.
  • QEECF1 – Twin DC lamp proving relay

    Twin relays covered by this data sheet (see downloads) are for lamp proving of flashing DC lamps. Mors Smitt Relays Modular plug in design Non weld contacts Silver and carbon impregnated with silver contact tips Proven reliability Low life cycle cost
  • QL1 – DC magnetically latched neutral line relay

    The relays covered by this data sheet (see downloads) are for use where a self latching relay with a separate release winding 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
  • QN1 – DC neutral line relay

    The relays covered by this data sheet (see downloads) 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