Phoenix Contact PLC-RPT-24UC/21/RW Relay Module - 24V AC/DC, 1 C/O, Railway Rated (2900318)

The Phoenix Contact PLC-RPT-24UC/21/RW (2900318) is a highly compact 6.2 mm relay module from the PLC-INTERFACE range, purpose-built for railway and harsh-environment applications. It combines a base terminal block with Push-in connection and a plug-in miniature relay with power contact, delivering reliable signal switching where vibration, shock and temperature extremes would compromise standard relays. Certified to EN 50155 for railway rolling stock, the module features wide-range input electronics accepting 0.7 to 1.25 x UN (briefly 1.4 x UN), making it tolerant of the voltage fluctuations common in rail and mobile power systems. Safe isolation between the coil and contact side and an extended operating temperature range of -40 °C to +70 °C (short-term +85 °C, temperature class TX) ensure dependable performance in demanding installations. Key Features Railway-certified to EN 50155, including vibration and shock resistance Wide-range input electronics: 0.7 to 1.25 x UN (1.4 x UN briefly) for optimum relay operation Safe isolation between coil and contact side Extended temperature range: -40 °C to +70 °C (short-term +85 °C) Ultra-narrow 6.2 mm overall width saves DIN rail space Tool-free Push-in connection for fast, secure wiring Plug-in miniature relay allows quick replacement without rewiring Compatible with FBST plug-in bridges for easy potential distribution Technical Specifications Part Number 2900318 Type Designation PLC-RPT-24UC/21/RW Input Voltage 24 V AC/DC (UC) Input Voltage Range 0.7 ... 1.25 x UN (1.4 x UN briefly) Contact Configuration 1 changeover contact (SPDT / 1 C/O) Contact Rating 6 A / 250 V AC Connection Method Push-in connection Width 6.2 mm Ambient Temperature -40 °C ... +70 °C (short-term +85 °C), class TX Degree of Protection IP20 Mounting NS 35 DIN rail Standards EN 50155 (railway applications) Approvals UL Recognized, cUL Recognized, cULus Listed, DNV Typical Applications Rolling stock and trackside signalling, rail infrastructure control cabinets, mining and heavy industrial plant, and any PLC I/O coupling application where vibration, shock or wide temperature swings demand a railway-grade interface relay.