RI-tech s.r.o. > Products > Railway > Rolling stock

Rolling stock

  • MTDV4-U200 relay – Voltage monitoring, timer delay-on /-off, 4 pole

     Plug-in electronic voltage monitoring relay with optional delay-on and delay-off timer function and four change-over contacts. The delay time is adjustable with a lockable knob (either delay-on or delay-off, the other delay is fixed). The relay can also be supplied with fixed time delays (no knob). The pull-in voltage and drop-out voltage are both adjustable via internal screws. The relay can also be supplied with a fixed pull-in and drop-out…

  • MTDV4-U200N relay – Voltage monitoring, timer delay-on /-off, 4 pole

     Plug-in electronic railway voltage monitoring relay withfour change-over contacts for reliable switching of very lowcurrents (1 mA @ 5 VDC) up to currents of 10A @ 110VDC. The relay has optionally a delay on pull-in and/or on dropout.The delay time is adjustable with a lockable knob(either delay-on or delay-off, the other delay is fixed). Therelay can also be supplied with fixed time delays (no knob).The pull-in voltage (Uon) and drop-out…

  • 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     This relay is obsolete from October 1, 2018.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…

  • 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…

  • NTBBOR 400 relay – Delay-on drop-out, 4 C/O

     The NTBBOR 400 is a delay-on drop-out with negative command relay with 4 double make / double break C/O contacts (form Z). The delay is fully programmable with a dip switch from 0.25 s to 63.75 min. The access to dip switch is available by removing time delay cover. This feature prohibits frivolous field time delay setting. The plug-in design offers secure locking feature for maximum ease of maintenance (no…

  • Panel indicator with stepper motor technology

     The new developed stepper panel indicator is an extension to the analogue panel indicator range of Mors Smitt. This new indicator based on stepper motor technology ensures a solid and very accurate,<0,5%, indication of any requested signal. (more…)

  • 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…

  • Portable relay tester PRT-MS1

     Portable relay test system designed to facilitate rapid verification of relay condition. The system is battery powered (lasts 8 hours standard use), and allows the operator to perform tests on both instantaneous and timer relays. Efficiently determine correct relay functionality including minimum operating voltage, contact quality and delay times. Defects such as jammed contacts are identified. (more…)

  • 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…

  • RDA Resistor unit

     The RDA resistor module consists of a D-relay housing containing 4 electrically isolated resistors. This gives the possibility to use them in different electrical circuits. Housing has venting holes for optimimum temperature behaviour. The RDA can be plugged in into all D-U sockets. Maximum allowable power inside the housing is 5W. Benefits: Proven reliable long term availability easy to maintain low life cycle cost no maintenance (more…)

  • Relay Marshalling Box (RMB)

     The RMB solution: fast, flexible, compact and reliable. (more…)

  • Retrofit & replacement solutions

     Extending life expectancy by upgrading obsolete and outdated rail network installations is mandating the replacement and retrofit of obsolete components. Many authorities recognize Mors Smitt´s expertise in this field, especially for retrofit and replacement with form, fit and function compliant systems (FFF). This is an area of increasing significance: Inhouse design and prototyping of new solutions Customer specific type testing and validation On site implementation and commissioning After sales support…

  • SB relay – Latching, 4/3 contacts

     The SB is a latching safety critical relay with 2 stable magnetically latched states. When 1 coil is energized, the relay actuates from magnetically latched position 1 to 2. When the other coil is energized, the relay actuates back from magnetically latched position 2 to 1. (more…)

  • SBG relay – Latching, 4/3 gold contacts

     The SBG is a latching safety critical relay with 2 stable magnetically latched states. When 1 coil is energized, the relay actuates from magnetically latched position 1 to 2. When the other coil is energized, the relay actuates back from magnetically latched position 2 to 1. (more…)

  • SC relay – Latching, 8 contacts

     The SC is a latching relay with 2 stable magnetically latched states. When 1 coil is energized, the relay actuates from magnetically latched position 1 to 2. When the other coil is energized, the relay actuates back from magnetically latched position 2 to 1. Relays have 8 double break contacts with different configurations. The plug-in design offers secure locking feature for maximum ease of maintenance (no wires need to be…

  • T2CBBU 400 relay – Asymetrical flasher, 4 contacts

     The T2CBBU 400 is an asymetrical flasher relay with 4 double make / double break C/O contacts (form Z). The first period is adjusted 0.1 s...1.5 s and second period 1 s...15 s. Time delay is achieved by combination of relay dip switch The access to dip switch is available by removing time delay cover. This feature prohibits frivolous field time delay setting. Timing can be also be factory set…