Many procurement teams check PLC-BSC-24DC-21-21 against SMPS Phoenix, Phoenixcontact PLC Bsc 24Dc 21 and Phoenixcontact Phoenix Contact Industrial Ethernet Switches before signing purchase orders, verifying quality, compliance, and after-sales support availability.
Phoenix PLC-BSC- 24DC/21-21 Relay Socket
The Phoenix PLC-BSC- 24DC/21-21 Relay Socket (Part No: 2967015 ) offers a Screw connection method, 0.14 mmΒ² ... 2.5 mmΒ² conductor cross section rigid, 0.14 mmΒ² ... 2.5 mmΒ² conductor cross section flexible, DIN rail mounting mounting type. Manufactured by Phoenix under the Phoenix Relay Socket category, this model belongs to the Phoenix PLC Series.

| Brand | Phoenix Contact |
| Product Type | Relay Socket |
| Model Number | PLC-BSC- 24DC/21-21 |
Phoenix PLC-BSC- 24DC/21-21 Relay Socket β Technical Specifications
| Specification | Value |
|---|---|
| Product type | Relay socket |
| Product family | PLC-INTERFACE |
| Connection method | Screw connection |
| Stripping length | 8 mm |
| Screw thread | M3 |
| Conductor cross section rigid | 0.14 mmΒ² ... 2.5 mmΒ² |
| Conductor cross section flexible | 0.14 mmΒ² ... 2.5 mmΒ² |
| Width | 14 mm |
| Height | 80 mm |
| Color | gray (RAL 7042) |
| Ambient temperature (operation) | -40 Β°C ... 60 Β°C |
| Ambient temperature (storage/transport) | -40 Β°C ... 85 Β°C |
| Mounting type | DIN rail mounting |
| Mounting position | any |
| Application | Universal |
| Protective circuit | Freewheeling diode |
| Nominal input voltage UN | 24 V DC |
| Conductor cross section AWG | 26 ... 14 |
| Tightening torque | 0.6 Nm ... 0.8 Nm |
| Status display | LED |
| Depth | 94 mm |
| Flammability rating according to UL 94 | V0 (Housing) |
| Enclosure Low | 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 |
| Compatible components | Miniature relay, REL-MR-24DC/21-21AU, REL-MR-24DC/21-21 |
| Maximum switching voltage | - |
| Voltage range with reference to US | - |
The Phoenix Contact PLC-BSC-24DC/21-21 (Part No: 2967015) is a precision-engineered Relay Socket designed to support 24 V DC input systems with excellent mechanical and thermal stability. As part of the trusted PLC-INTERFACE family, it features screw connection terminals with M3 threads, suitable for both rigid and flexible conductors ranging from 0.14 mmΒ² to 2.5 mmΒ². Its 14 mm width and 80 mm height make it an ideal solution for control cabinets where space and wiring access are critical. The integrated freewheeling diode protects connected relays from voltage spikes during inductive load switching, improving component lifespan.
The PLC-BSC-24DC/21-21 operates within an ambient temperature range of β40 Β°C to +60 Β°C, ensuring consistent reliability even in harsh environments. The gray (RAL 7042) housing maintains a professional appearance and complies with UL 94 V0 flammability standards for safety. Its LED status indicator provides immediate visual feedback, helping technicians verify relay operation without disconnecting live circuits. With DIN rail mounting and universal fitting options, this Phoenix 24 V DC Input Voltage Relay Socket integrates seamlessly into automation modules, PLC panels, and machine control systems. The socketβs 94 mm depth and strong terminal grip enable vibration-resistant performance in continuous operation.
Engineers across process industries, machine building, and control automation use the Phoenix Contact Relay Socket for secure interface connections between PLCs and field devices. It provides dependable electrical isolation, reducing the risk of signal interference and ensuring clean switching behavior in compact automation racks. Maintenance technicians value the clear terminal labeling, LED display, and tool-friendly screw connections for fast installation and easy diagnostics during panel servicing. In educational labs, the PLC-BSC-24DC/21-21 2967015 also helps students understand practical circuit interfacing and control voltage management under real-world conditions. With its robust design, wide compatibility, and long-term stability, this socket has become a benchmark in industrial signal interfacing solutions.







