Maintenance teams planning replacements for RIF-2-RPT-LDP-24DC-4X21 frequently review SMPS Phoenix, Phoenix 2966207 and Phoenixcontact Phoenix Contact Industrial Ethernet Switches to prevent downtime, checking availability and compatibility with existing systems.
Phoenix RIF-2-RPT-LDP-24DC/4X21 Relay Module
The Phoenix RIF-2-RPT-LDP-24DC/4X21 Relay Module (Part No: 2903308 ) offers a 24 V DC nominal input voltage UN, 19.2 V DC ... 30 V DC (20 °C) input voltage range, polarized Drive, 13 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 | RIF-2-RPT-LDP-24DC/4X21 |
Phoenix RIF-2-RPT-LDP-24DC/4X21 Relay Module – Technical Specifications
| Specification | Value |
|---|---|
| Product type | Relay Module |
| Product family | RIFLINE complete |
| Application | Universal |
| Mechanical service life | approx. 2x 107 cycles |
| Insulation | Basic insulation |
| Overvoltage category | II |
| Pollution degree | 2 |
| Maximum power dissipation for nominal condition | 1.01 W |
| Test voltage (Winding/contact) | 2.5 kVrms (50 Hz, 1 min., winding/contact) |
| Test voltage (Changeover contact/changeover contact) | - |
| Rated surge voltage | 2.5 kV |
| Nominal input voltage UN | 24 V DC |
| Input voltage range | 19.2 V DC ... 30 V DC (20 °C) |
| Drive and function | monostable |
| Drive (polarity) | polarized |
| Typical input current at UN | 42 mA |
| Typical response time | 13 ms |
| Typical release time | 14 ms |
| Protective circuit | Freewheeling diode |
| Operating voltage display | Yellow LED |
| Contact switching type | 4 changeover contacts |
| Type of switch contact | Single contact |
| Contact material | AgNi |
| Maximum switching voltage | 250 V AC/DC |
| Limiting continuous current | 6 A (see diagram) |
| Maximum inrush current | 16 A (20 ms, N/O contacts) |
| Min. switching current | 5 mA (24 V) |
| Interrupting rating (ohmic load) max. | 144 W (at 24 V DC) |
| Switching capacity | 2 A (at 24 V, DC13) |
| Connection method | Push-in connection |
| Stripping length | 8 mm |
| Conductor cross section rigid | 0.14 mm² ... 1.5 mm² |
| Conductor cross section flexible | 0.14 mm² ... 1.5 mm² |
| Conductor cross section AWG | 26 ... 16 (solid) |
| Tightening torque | - |
| Width | 31 mm |
| Height | 96 mm |
| depth | 75 mm |
| Color | gray (RAL 7042) |
| Flammability rating according to UL 94 | V2 (Housing) |
| Degree of protection (Relay) | RT I (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 | - |
| Humidity | - |
| Vibration | - |
| EMC | - |
| Enclosure | - |
| Low Voltage Directive | - |
| Electromagnetic compatibility | - |
| Standards/regulations | IEC 60947-5-1 |
| Mounting Type | DIN rail mounting |
| Mounting position | any |
| Contact Connection type | - |
| Output fuse | - |
| Degree of protection (Installation location) | - |
The Phoenix Contact RIF-2-RPT-LDP-24DC/4X21 (Part No: 2903308) Relay Module belongs to the RIFLINE complete product family and is purpose-built for universal control tasks. This Phoenix 4 Changeover Relay ensures stable switching at a nominal input voltage of 24 V DC, supporting a voltage range between 19.2 V DC to 30 V DC. With a mechanical service life of 2×10⁷ cycles, it provides long-lasting operational reliability in industrial environments. The relay includes four changeover contacts made of AgNi contact material, known for high conductivity and resistance to oxidation. It consumes 1.01 W of power under nominal conditions and delivers quick actuation with a response time of 13 ms and release time of 14 ms. Featuring a freewheeling diode protection circuit, yellow LED indicator for status display, and a push-in connection system, it enables secure and convenient wiring. Designed for DIN rail mounting and compact installation, the relay meets IEC 60947-5-1 standards and operates efficiently across temperatures from -40°C to 60°C.
The Phoenix Contact Relay Module RIF-2-RPT-LDP-24DC/4X21 (2903308) is widely used in process automation, machine control, and industrial safety systems where precision signal switching and load isolation are required. This Phoenix 4 Changeover Relay ensures reliable electrical contact performance even under high mechanical or thermal stress. Its robust design supports continuous operation in PLC panels, power distribution circuits, and industrial control cabinets. Maintenance engineers prefer it for its fast switching response, low power consumption, and resistance to voltage fluctuations. The combination of reliable push-in terminal connections and secure DIN rail mounting ensures ease of integration in compact industrial systems. Overall, it offers a safe, efficient, and cost-effective solution for engineers seeking superior relay performance in automation setups.
The Phoenix Contact RIF-2-RPT-LDP-24DC/4X21 (2903308) stands out for its durability, efficient control operation, and compact design, ideal for industrial automation systems. The RIF-2-RPT-LDP-24DC/4X21 model guarantees consistent 24 V DC performance with enhanced switching reliability. Known among engineers as the phoenix contact 2903308 relay module, it is trusted for long-term dependability and precision switching. With solid build quality, safe isolation, and superior circuit protection, the Phoenix Contact RIF-2-RPT-LDP-24DC/4X21 remains a preferred choice for modern automation panels and industrial relay systems.
