Siemens Industrial Controls 3TX7144-1E4 Socket

The Siemens 3TX7144-1E4 is a professional-grade 11-pin octal relay socket engineered for industrial control and HVACR logic circuits. This heavy-duty SIRIUS relay socket is designed to support the 3TX71 series plug-in relays, providing a high-integrity connection point for 3-pole double-throw (3PDT) switching operations. Built with a robust thermoplastic housing, the unit features screw terminals with pressure clamp washers that facilitate secure wiring for two #12 AWG conductors per terminal. This model is a direct cross-reference and is identical to VBE3B-C, ensuring seamless integration into existing control panels without requiring dimensional adjustments or physical modifications.

Optimized for rapid installation, the 3TX7144-1E4 socket supports both standard 35mm DIN rail mounting and traditional panel-mount configurations. This industrial relay base maintains tight electrical clearances and is built to handle operating temperatures from -40 to 55 degrees Celsius. Its octal base configuration is a technician standard for reliable field service, offering an IP20 enclosure rating to prevent accidental contact with live terminals. For maintenance professionals looking for a relay socket cross-reference that meets UL and CSA standards, this 11-pin terminal base delivers the mechanical durability required for continuous-duty cycles in automation environments.

• Multi-Mount Versatility: Direct compatibility with standard 35mm DIN rail or surface-mount panel installations.
• High-Current Termination: Integrated pressure clamp washers allow for secure screw terminal connections of up to two #12 AWG wires.
• Precision Engineering: Designed specifically for Siemens 3TX71 series 3PDT relays to ensure zero-slop physical fitment.
• Environmental Resilience: Rated for extreme industrial environments with an operating range of -40°C to 55°C.
• Universal Cross-Reference: Serves as a direct functional and structural equivalent to the VBE3B-C octal socket.

Is the 3TX7144-1E4 compatible with other relay brands?
While designed for the Siemens SIRIUS 3TX71 lineage, this is a standard 11-pin octal interface. However, for precise fitment and vibration resistance, technicians should prioritize use with 3TX71 series plug-in relays.

Can this socket be used in high-vibration HVACR units?
Yes, the screw terminal design utilizes pressure-style washers that maintain consistent clamping force on the wire, significantly reducing the risk of loosening due to mechanical resonance or thermal cycling.

What is the maximum voltage rating for this 11-pin base?
This socket is typically rated for up to 300V AC/DC in general-purpose industrial control applications, meeting standard dielectric withstanding voltage requirements for the 3TX series.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.