Phoenix PLC-RSC-24DC/21HC Plug-in Miniature Relay
Phoenix PLC-RSC-24DC/21HC is a relay module with 24 V DC nominal input and 1 changeover contact for high continuous currents. This Phoenix Phoenix Contact Plug-in Miniature Relay 2967620 belongs to the PLC Series and features 4 kV AC test voltage, 6 kV rated surge voltage, reinforced insulation, monostable polarized drive, reverse polarity protection, yellow LED operating display, AgNi contact material, screw connection, 8 ms response time, 10 ms release time, and 0.43 W maximum power dissipation.
| Brand | Phoenix Contact |
| Product Type | Relay Module |
| Model Number | PLC-RSC- 24DC/21HC |
Phoenix PLC-RSC-24DC/21HC Plug-in Miniature Relay - Technical Specifications
| Specification | Value |
|---|---|
| Product type | Relay Module |
| Product family | PLC-INTERFACE |
| Application | High continuous currents |
| Mechanical service life | 3x 107 cycles |
| Insulation | Safe isolation, reinforced insulation |
| Overvoltage category | III |
| Pollution degree | 3 |
| Maximum power dissipation for nominal condition | 0.43 W |
| Test voltage (Winding/contact) | 4 kV AC (50 Hz, 1 min., winding/contact) |
| Test voltage (Changeover contact/changeover contact) | - |
| Rated surge voltage | 6 kV |
| Nominal input voltage UN | 24 V DC |
| Input voltage range | 20.2 V DC ... 33.6 V DC (20 °C) |
| Drive and function | monostable |
| Drive (polarity) | polarized |
| Typical input current at UN | 18 mA |
| Typical response time | 8 ms |
| Typical release time | 10 ms |
| Protective circuit | Reverse polarity protection; Polarity protection diode |
| Operating voltage display | Yellow LED |
| Contact switching type | 1 changeover contact |
| Type of switch contact | Single contact |
| Contact material | AgNi |
| 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 | 10 A |
| Maximum inrush current | 30 A (300 ms) |
| Min. switching current | 10 mA (12 V) |
| Interrupting rating (ohmic load) max. | 240 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 | 14 mm |
| Height | 80 mm |
| depth | 94 mm |
| Color | gray (RAL 7042) |
| Flammability rating according to UL 94 | V0 (Housing) |
| Degree of protection (Relay) | RT II (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 |
The PLC-RSC-24DC/21HC Phoenix Contact Plug-in Miniature Relay 2967620 is designed for high continuous current switching in industrial automation panels. It operates at 24 V DC with 1 changeover contact and provides 4 kV AC insulation with a 6 kV surge voltage rating. With reinforced insulation and polarized monostable drive, it ensures defined control performance. As part of the PLC Series, this Phoenix relay module is integrated into industrial systems across India.
In conveyor systems, packaging equipment, assembly stations, and control cabinets, the PLC-RSC-24DC/21HC enables stable signal and load switching between PLC outputs and field devices. The screw connection method ensures secure panel wiring, while reverse polarity protection safeguards DC inputs. Its 8 ms response time and 3x 10⁷ mechanical service life support reliable operation in repetitive industrial processes.
The PLC-RSC-24DC/21HC Phoenix Contact Plug-in Miniature Relay 2967620 combines reinforced insulation, controlled switching, and compact integration for automation panels. With 24 V DC input, single changeover contact, 4 kV AC test voltage, and 0.43 W power dissipation, it meets structured control requirements. Manufactured by Phoenix under the PLC Series, this relay module supports dependable performance in industrial automation environments.
