Obsolescence Overview Railway Relays

Old model Product New model Pin-to-pin compatible Main differences new model compared to old model Obsolescence date
FDA-U200 Flashing relay FDA4-U200N Yes 4 C/O contacts instead of 2 C/O contacts, 23 mm higher July 1, 2023
FDA-U300 Flashing relay FDA4-U200N Yes 4 C/O contacts instead of 2 C/O contacts, 23 mm higher July 1, 2023
KCS-U200 Latching relay  Suggestion for replacement: BD-U200N series n.a. n.a. January 1, 2023
RC-19A Current monitoring  CMP relay n.a. n.a. January 1, 2023
UB 001 Voltage monitoring relay No new model available n.a. n.a. June, 2022
UB 002 Voltage monitoring relay No new model available n.a. n.a. June, 2022
ACD-U200 Voltage monitoring relay MTDV4-U200 yes 4 C/O contacts instead of 1 C/O + 1 N/O contact, time delay options February 1, 2017
ACTD4-U200 Timer & voltage monitoring relay MTDV4-U200 yes Smaller footprint, delay-off possibility February 1, 2017
NSR Overvoltage and undervoltage monitoring relay n.a. n.a. n.a. October 1, 2018
PDF3-U200 1-shot relay CTD4-U200 yes Smaller footprint February 1, 2017
TDBE-U200 Timer relay TDBE4-U200 no 3 C/O + 1 N/C contact instead of 2 C/O contacts February 1, 2017
TDE-U200 Timer relay TDE4N-U yes 4 C/O contacts instead of 1 C/O contact + 1 N/O contact May 1, 2016
TDE3-U200 Timer relay TDBE4-U200 no 3 C/O + 1 N/C contact instead of 3 C/O contacts, delay-on possibility February 1, 2017
TDE4-U200 Timer relay TDE4N-U yes Smaller footprint May 1, 2016
UMD-U200 Voltage monitoring relay MTDV4-U200 yes 4 C/O contacts instead of 1 C/O + 1 N/O contact, time delay options February 1, 2017
V10 Relay socket V16 yes Integrated retaining clip, suitable for both wall and 35 mm rail mounting October 1, 2015
V11 Relay socket V16-D yes Integrated retaining clip, suitable for both wall and 35 mm rail mounting October 1, 2015
V12 Relay socket V16 yes Integrated retaining clip, suitable for both wall and 35 mm rail mounting October 1, 2015
V13 Relay socket V16-D yes Integrated retaining clip, suitable for both wall and 35 mm rail mounting, if a LED is required use a CU-relay+LED October 1, 2015
V14 Relay socket V18 yes Integrated retaining clip, use CU relay instead of CP relay October 1, 2015
V15 Relay socket V16-D yes Integrated retaining clip, suitable for both wall and 35 mm rail mounting, if a LED is required use a CU-relay+LED October 1, 2015
V24 Relay socket V23 or yes Suitable for both wall and 35 mm rail mounting, screw terminals instead of faston terminals March 1, 2014
V29 Suitable for both wall and 35 mm rail mounting, spring clamp terminals instead of faston terminals
V25 Relay socket V23 or yes Suitable for both wall and 35 mm rail mounting, screw terminals instead of faston terminals March 1, 2014
V29 Suitable for both wall and 35 mm rail mounting, spring clamp terminals instead of faston terminals
V94 Relay socket V93 or yes Suitable for both wall and 35 mm rail mounting, screw terminals instead of faston terminals March 1, 2014
V99 Suitable for both wall and 35 mm rail mounting, spring clamp terminals instead of faston terminals
V95 Relay socket V93 or yes Suitable for both wall and 35 mm rail mounting, screw terminals instead of faston terminals March 1, 2014
V99 Suitable for both wall and 35 mm rail mounting, spring clamp terminals instead of faston terminals