1440-TB-D XM Series Terminal Base Unit | Allen Bradley

Product Overview

The Allen Bradley 1440-TB-D serves as the essential mounting and wiring foundation for the XM series expansion relay modules. This screw-clamp terminal base provides the physical interface and electrical connectivity required for the 1440-REX00-04RD expansion relay module to communicate within a condition monitoring network. We supply this unit as 100% Brand New and Factory Original, ensuring maximum contact integrity and structural durability for mission-critical machinery protection systems.

Technical Specifications

The 1440-TB-D provides a robust electrical platform with the following environmental and power parameters:

Engineering Advantages

• Vibration-Resistant Terminations: The high-torque screw clamps secure field wiring against the constant mechanical harmonics found in turbine and compressor monitoring applications. This design prevents intermittent signal loss and eliminates "nuisance" alarms caused by loose connections.

• Thermal Resilience: The hardware operates reliably across a specific 20°C to 65°C window. This high-end thermal ceiling allows for installation in localized junction boxes near heat-generating industrial machinery without degrading the internal bus connections.

• Simplified Maintenance Architecture: The terminal base remains fixed to the DIN rail, allowing technicians to swap the 1440-REX00-04RD relay module without disturbing any field wiring. This "plug-in" capability reduces Mean Time to Repair (MTTR) during critical maintenance windows.

• Regulated Power Management: The unit manages a tight voltage tolerance (21.6–26.4 VDC), protecting the sensitive logic of the mounted relay module from common DC bus fluctuations and electrical noise typical of industrial power grids.

FAQs

• Is this 1440-TB-D unit 100% Brand New?

  Yes. Every 1440-TB-D we ship is 100% Brand New in its original factory packaging. We do not supply used or "pull-off" bases, ensuring your protection system starts with zero-hour hardware and clean terminal contacts.

• Can I use this base with other XM modules?

  The 1440-TB-D is specifically engineered for use with the 1440-REX00-04RD expansion relay module. While it shares a similar form factor with other XM bases, you must verify the internal bus routing matches your specific module to prevent hardware damage.

• Does the terminal base include the relay module?

  No. This part number refers only to the Terminal Base Unit. You must purchase the 1440-REX00-04RD or other compatible XM modules separately to complete the assembly.

• What is the recommended torque for the screw clamps?

  To ensure optimal connectivity and prevent wire damage, apply the manufacturer’s specified torque (typically 0.5–0.6 Nm) using a calibrated industrial screwdriver. Proper tensioning prevents terminal strip cracking while maintaining a gas-tight seal on the copper wire.