Procurement managers rarely finalize PLC-RPT-24UC-21 without reviewing SMPS Phoenix, Phoenix 2966207 and Phoenix Contact Relay Socket, ensuring that the chosen component meets budget, compliance, and delivery conditions.
Phoenix PLC-RPT- 24UC/21 Relay Module
The Phoenix PLC-RPT- 24UC/21 Relay Module (Part No: 2900300 ) offers a 24 V AC/DC nominal input voltage UN, 19.4 V AC/DC ... 33.6 V AC/DC (20 °C) input voltage range, polarized Drive, 6 ms typical response time. Manufactured by Phoenix under the Phoenix Relay Module category, this model belongs to the Phoenix PLC Series.
| Brand | Phoenix Contact |
| Product Type | Relay Module |
| Model Number | PLC-RPT- 24UC/21 |
Phoenix PLC-RPT- 24UC/21 Relay Module – Technical Specifications
| Specification | Value |
|---|---|
| Product type | Relay Module |
| Product family | PLC-INTERFACE |
| Application | Universal |
| Mechanical service life | 2x 107 cycles |
| Insulation | - |
| Overvoltage category | III |
| Pollution degree | - |
| Maximum power dissipation for nominal condition | 0.26 W |
| Test voltage (Winding/contact) | 4 kV AC (50 Hz, 1 min., winding/contact) |
| Test voltage (Changeover contact/changeover contact) | - |
| Rated surge voltage | - |
| Nominal input voltage UN | 24 V AC/DC |
| Input voltage range | 19.4 V AC/DC ... 33.6 V AC/DC (20 °C) |
| Drive and function | monostable |
| Drive (polarity) | polarized |
| Typical input current at UN | 11 mA (at UN = 24 V AC) |
| Typical response time | 6 ms |
| Typical release time | 15 ms |
| Protective circuit | Bridge rectifier; Bridge rectifier |
| Operating voltage display | Yellow LED |
| Contact switching type | 1 changeover contact |
| Type of switch contact | Single contact |
| Contact material | AgSnO |
| Maximum switching voltage | 250 V AC/DC (The separating plate PLC-ATP should be installed for voltages larger than 250 V (L1, L2, L3) between identical terminal blocks in adjacent modules. Potential bridging is then carried out with FBST 8-PLC... or ...FBST 500...) |
| Limiting continuous current | 6 A |
| Maximum inrush current | 10 A (4 s) |
| Min. switching current | 10 mA (12 V) |
| Interrupting rating (ohmic load) max. | 140 W (at 24 V DC) |
| Switching capacity | 2 A (at 24 V, DC13) |
| Connection method | Push-in connection |
| Stripping length | 10 mm |
| Conductor cross section rigid | 0.14 mm² ... 2.5 mm² |
| Conductor cross section flexible | 0.14 mm² ... 2.5 mm² |
| Conductor cross section AWG | 26 ... 14 |
| Tightening torque | - |
| Width | 6.2 mm |
| Height | 80 mm |
| depth | 94 mm |
| Color | gray (RAL 7042) |
| Flammability rating according to UL 94 | V0 (Housing) |
| Degree of protection (Relay) | RT III (Relay) |
| Degree of protection (Relay base) | IP20 (Relay base) |
| Ambient temperature (operation) | -40 °C ... 60 °C |
| Ambient temperature (storage/transport) | -40 °C ... 85 °C |
| Temperature | D |
| Humidity | A |
| Vibration | B/C |
| EMC | B |
| Enclosure | Required protection according to the Rules shall be provided upon installation on board |
| Low Voltage Directive | Conformance with Low Voltage Directive |
| Electromagnetic compatibility | Conformance with EMC directive |
| Standards/regulations | IEC 60947-5-1 |
| Mounting Type | DIN rail mounting |
| Mounting position | any |
| Contact Connection type | - |
| Output fuse | 4 A gL/gG NEOZED |
| Degree of protection (Installation location) | - |
The Phoenix Contact PLC-RPT-24UC/21 (Part No: 2900300) Relay Module is part of the trusted PLC-INTERFACE product family, known for precision and durability in automation systems. Operating at a nominal input voltage of 24 V AC/DC, it ensures seamless integration with PLC control panels and electrical circuits. The module functions within a voltage range of 19.4 V AC/DC to 33.6 V AC/DC, maintaining stability under variable power conditions. With a mechanical service life of 2×10⁷ cycles and maximum power dissipation of only 0.26 W, it offers long-term energy-efficient operation. Its push-in connection method simplifies wiring, while the bridge rectifier protective circuit enhances reliability and prevents polarity errors. The 1 changeover contact made of AgSnO ensures superior conductivity, supporting 6A continuous current and high switching loads. Compact yet robust, this Phoenix Contact Relay Module also includes a yellow LED indicator for real-time operational feedback and is built for DIN rail mounting for efficient space use in industrial panels.
The Phoenix Contact Relay Module PLC-RPT-24UC/21 (2900300) is widely used in automation cabinets, PLC output stages, and process control systems where 24 V AC/DC switching is required. This Phoenix Contact 1 Changeover Relay delivers consistent electrical isolation and fast signal switching, making it suitable for control relays, signal interfaces, and machinery operations. Engineers trust this relay module for its quick response time of 6 ms, reliable design, and maintenance-friendly configuration. Whether used in power management systems, industrial control panels, or distributed control networks, the PLC-RPT-24UC/21 combines efficiency, safety, and easy installation for professional automation environments.
The Phoenix Contact PLC-RPT-24UC/21 (2900300) is a compact and efficient relay module trusted for high switching reliability and long operational life. Designed to deliver precise control at 24 V AC/DC, the plc-rpt-24uc-21-2900300 offers dependable performance and energy efficiency. Built for modern automation systems, it provides consistent results in electrical and control panel operations. The Phoenix Contact PLC-RPT-24UC/21 continues to be the preferred solution among engineers seeking quality, performance, and longevity in industrial relay modules.
