If you’re not fully sure about PLC-RSC-24UC-21, taking a closer look at SMPS Phoenix, Phoenix 2966207 and Phoenix Contact Relay Socket often helps compare reliability, cost, and availability.
Phoenix PLC-RSC- 24UC/21 Relay Module
The Phoenix PLC-RSC- 24UC/21 Relay Module (Part No: 2966184 ) 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-RSC- 24UC/21 |
Phoenix PLC-RSC- 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 | Screw connection |
| Stripping length | 8 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 | 0.6 Nm ... 0.8 Nm |
| 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) | - |
| 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-RSC-24UC/21 (Part No: 2966184) Relay Module delivers reliable switching performance and long operational life, ideal for universal applications in control systems. Operating at a nominal input voltage of 24 V AC/DC, it ensures compatibility with a wide range of automation setups. The module supports an input voltage range between 19.4 V AC/DC and 33.6 V AC/DC at 20°C, ensuring stable performance under voltage fluctuations. Built with safe isolation and bridge rectifier protection, it enhances safety and circuit reliability during continuous operation. Featuring a single changeover contact made from AgSnO, it provides high electrical conductivity and wear resistance. With a mechanical service life of 2×10⁷ cycles and a maximum power dissipation of 0.26 W, this model ensures energy efficiency and endurance for extended use. The PLC-RSC-24UC/21 includes a yellow LED indicator for operational feedback and supports DIN rail mounting with screw connections for secure installation. Measuring just 6.2 mm in width, 80 mm in height, and 94 mm in depth, this Phoenix Contact Relay Module offers an ideal balance of compactness, durability, and switching precision.
The Phoenix Contact Relay Module PLC-RSC-24UC/21 (2966184) is widely used in control cabinets, PLC outputs, and automation circuits that demand efficient 24 V AC/DC switching. This Phoenix 24 V AC/DC Relay Module ensures stable performance across various industrial processes, including signal control, power management, and machine operations. Its compact DIN rail mounting system and robust screw connections make it suitable for high-density control panels. Engineers value the PLC-RSC-24UC/21 for its fast 6 ms response time, long mechanical life, and consistent reliability in continuous-duty applications. The combination of safety features and energy efficiency makes this relay a preferred choice for electrical engineers, maintenance technicians, and automation specialists.
The Phoenix Contact PLC-RSC-24UC/21 (2966184) is a trusted industrial relay module built for durability and precise control. Designed to deliver stable 24 V AC/DC switching, the PLC-RSC-24UC/21-2966184 ensures long-term performance with minimal energy loss. Compact, efficient, and easy to integrate, it meets modern automation standards and performs reliably in electrical control panels. The Phoenix Contact PLC-RSC-24UC/21 continues to be the preferred solution for engineers seeking dependable, high-performance relay technology in industrial applications.
