Obsolete Railway Relays

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  ACD-U200 Battery voltage monitoring relay

  This product is no longer available. The replacement relay is the MTDV4-U200. Electronic plug-in railway monitoring relay for battery voltages. The relay reacts on the mean value of a DC-voltage with ripple. The pull-in voltage and hysteresis (the difference between pull-in voltage and drop-out voltage) are adjustable by means of multiturn trim potentiometers. The pull-in time after crossing the setpoint is < 15ms. The drop-out time is approximately 20 ms,…
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  ACTD4-U200 relay – Voltage monitoring, timer, delay-on

  This product is no longer available. The replacement relay is the MTDV4-U200. Plug-in electronic voltage monitoring relay with four change-over contacts. When the relay is activated there is a delay on pull-in. The delay time is adjustable with a lockable knob. The relay can also be supplied with a fixed time delay (no knob). The pull-in voltage is adjustable with a lockable knob. The relay can also be supplied with a…
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  FDA-U200 relay – Flashing, 2 pole

  This product is no longer available. The replacement relay is the FDA4-U200N. Plug-in electronic railway pulsing relay with two change-over contacts. When the relay is activated the coil starts with an interval. The pulse time and interval time are equal. The pulsing frequency is adjustable with a lockable knob. The relay can also be supplier with a fixed pulsing frequency (no knob). The relay is standard equipped with double zener…
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  FDA-U300 relay – Flashing, AC input, 2 pole

  This product is no longer available. The replacement relay is the FDA4-U200N. Plug-in electronic railway pulsing relay with two change-over contacts, suitable for AC coil voltages with a frequency of 50/60 Hz. When the relay is activated the coil starts with an interval. The pulse time and interval time are equal. The pulsing frequency is adjustable with a lockable knob. The relay can also be supplier with a fixed pulsing frequency…
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  KCS-U200 relay – Latching , 2 pole

  This relay is obsolete from January 1, 2023. Bistable railway relay with two change-over contacts. The contacts remain in the last powered position. Bistable by means of two coils and a mechanical rocker mechanism. The two separate coils are galvanically isolated. The contacts are weld-no-transfer contacts: they are mechanically forced in the same position. The KCS-U200 relay is a compact design relay connected with 2.8 x 0.8 mm fastons. The…
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  NSE relay – over- and undervoltage monitoring

  This relay is obsolete from October 1, 2018. Overvoltage and undervoltage monitoring railway relay with two change-over contacts. Suitable for AC 50 Hz voltages. Auxiliary power supply necessary, either DC or AC (0...60 Hz). When the relay is activated there is a delay on pull-in. The delay time is adjustable with a lockable knob. The overvoltage and undervoltage are also adjustable with a lockable knob. The NSE-relay has a fail-safe…
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  NSR relay – over- and undervoltage monitoring, 3-phase

  This product is no longer available. Overvoltage and undervoltage monitoring railway relay with two changeover contacts. Suitable for 3-phase 400 VAC 50 Hz. Auxiliary power supply necessary, either DC or AC (0-60 Hz). When the relay is activated there is a delay on pull-in. The delay time is adjustable with a lockable knob. The detection for overvoltage and undervoltage is also adjustable with a lockable knob. The NSR-relay has a…
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  PDF3-U200 relay – one-shot, 3 pole

  This product is no longer available. The replacement relay is the CTD4-U200. Plug-in electronic railway one-shot relay with three change-over contacts. The relay is activated by the negative going edge of a DC voltage on the input terminals. The pulse time is fixed and standard 3 seconds, other pulse times on request. The relay has two LEDs which indicate the presence of power supply and contact switching. Standard equipped with magnetic…
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  RC-19A relay – Current monitoring

  This relay is obsolete from January 1, 2023. Current monitoring railway relay with one change-over contact. Suitable for AC currents. The input consists of a ring core saturation transformer: place the wire with current to monitor simply through the transformer. Ease of installation and high continuous overcurrent possible. Protection against short circuit and low impedance. The relay is also suitable for earthfault protection. Adjusting the pull-in current for lower values…
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  TDBE-U200 relay – delay-on & delay-off, 2 pole

  This product is no longer available. The replacement relay is the TDBE4-U200. Plug-in electronic railway timer relay with delay-on and delay-off function and two change-over contacts. The delay times are independently adjustable with two lockable knobs. The relay can also be supplied with one or two fixed delay times (one knob or none). The relay needs an auxiliary supply and can be activated with an external N/O contact or with a…
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  TDE-U200 relay – Timer, delay-off, 2 pole

  This product is no longer available. The replacement relay is the TDE4N-U. Plug-in electronic railway timer relay with one change-over contact and one normally open contact. When the relay is not energized anymore there is a delay on drop-out, without any auxiliary power supply. The delay time is adjustable with a lockable knob. The relay can also be supplied with a fixed time delay (no knob). The relay is equipped…
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  TDE3-U200 relay – Timer, delay-off, 3 pole

  This product is no longer available. The replacement relay is the TDBE4-U200/300. Plug-in electronic railway timer relay with three change-over contacts and delay-off function. The relay is energized by auxiliary supply and activated by an external N/O contact. The delay time is adjustable with a lockable knob. The relay can also be supplied with a fixed time delay (no knob). The relay is equipped with two LEDs which indicate the…
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  TDE4-U200 relay – Timer, delay-off, 4 pole

  This product is no longer available. The replacement relay is the TDE4N-U. Plug-in electronic railway timer relay with four change-over contacts. When the relay is not energized anymore there is a delay on drop-out, without any auxiliary power supply. The delay time is adjustable with a lockable knob. The relay can also be supplied with a fixed time delay (no knob). The relay is equipped with a LED which indicates the…
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  UMD-U200 relay – Voltage monitoring

  This product is no longer available. The replacement relay is the MTDV4-U200. Plug-in electronic voltage monitoring relay with one change-over contact and one normally open contact. The pull-in voltage is adjustable with a lockable knob. The relay can also be supplied with a fixed pull-in voltage (no knob). The UMD-U200 offers a very small hysteresis (difference between pull-in and drop-out voltage) and does not need an auxiliary supply. The relay…