During technical comparisons, RIF-2-BPT-4X21 appears alongside SMPS Phoenix, Phoenixcontact Ecor 2 Bsc2 Rt 2X21 and Phoenixcontact Phoenix Contact Industrial Ethernet Switches so engineers assess signal types, ingress protection, and ambient tolerances accurately.
Phoenix RIF-2-BPT/4X21 Relay Socket
The Phoenix RIF-2-BPT/4X21 Relay Socket (Part No: 2900934 ) offers a Push-in connection method, 0.14 mm² ... 1.5 mm² conductor cross section rigid, 0.14 mm² ... 1.5 mm² 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 | RIF-2-BPT/4X21 |
Phoenix RIF-2-BPT/4X21 Relay Socket – Technical Specifications
| Specification | Value |
|---|---|
| Product type | Relay socket |
| Product family | RIFLINE complete |
| Nominal voltage UN | 250 V AC/DC |
| Nominal current IN | max. 12 A (Depends on application/assembly) |
| 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 |
| Width | 31 mm |
| Height | 96 mm |
| Depth Retaining bracket | 75 mm (with retaining bracket) |
| Color | gray (RAL 7042) |
| Ambient temperature (operation) | -40 °C ... 85 °C (Depends on application/assembly) |
| Ambient temperature (storage/transport) | -40 °C ... 85 °C |
| Mounting type | DIN rail mounting |
| Mounting position | any |
| Protective circuit | depending on the selected input/suppressor modules |
| Conductor cross section AWG | 26 ... 16 (solid) |
| Flammability rating according to UL 94 | V2 (Housing) |
| Enclosure Low | - |
| Diameter | 3.2 mm |
| Voltage range with reference to US | - |
The Phoenix Contact RIF-2-BPT/4X21 (Part No: 2900934) is a durable Relay Socket from the well-regarded RIFLINE Complete family, developed for high-performance control and automation environments. Designed to handle nominal voltages up to 250 V AC/DC and current loads up to 12 A, it ensures safe and consistent relay base connections in demanding industrial conditions. Featuring a push-in connection system, it allows quick and tool-free wiring—minimizing installation time while enhancing contact reliability. The socket supports both rigid and flexible conductors ranging from 0.14 mm² to 1.5 mm² with a standard 8 mm stripping length, making it compatible with a wide range of relay setups.
With a robust design measuring 31 mm in width and 96 mm in height, the RIF-2-BPT/4X21 optimizes DIN rail space, ideal for compact control panels. Its gray (RAL 7042) housing complies with UL 94 V2 flammability standards, providing long-term thermal and electrical safety. This relay socket operates efficiently in extreme conditions, from –40 °C to +85 °C, ensuring continuous functionality in both temperature-controlled and outdoor electrical enclosures. The integrated protective circuit—configurable based on suppressor module selection—adds surge and transient protection, extending relay life and safeguarding sensitive devices. Built under stringent Phoenix Contact standards, this model ensures reliable, vibration-resistant wiring for automation engineers worldwide.
Maintenance engineers and automation designers prefer the Phoenix Contact Relay Socket for its proven durability and easy integration into industrial control systems. Its push-in connection design reduces wiring time, ensuring stable performance during vibration and high current switching. The RIF-2-BPT/4X21 2900934 is widely applied in PLC modules, machine control units, and signal relays used in process and factory automation. In building management and energy systems, it supports quick relay replacement without disturbing neighboring terminals, saving valuable maintenance time. The compact and insulated housing provides exceptional safety, while the simplified connection interface helps young engineers understand practical relay mounting and control wiring methods. This model demonstrates why Phoenix Contact remains a trusted choice in the relay interface segment.
