1444-RELX00-04RB | Allen Bradley Dynamix 1444 Expansion Relay Module

Product Overview

The Allen Bradley 1444-RELX00-04RB serves as a dedicated expansion relay module for the Dynamix™ 1444 integrated condition monitoring system. This hardware expands the local switching capabilities of the dynamic measurement system, providing four Single Pole Double Throw (SPDT) relays for machinery protection and alarm annunciation. It interfaces directly with the 1444-DYN04-01RA dynamic measurement module to execute automated trip logic based on vibration, pressure, or temperature setpoints. We supply this module as 100% Brand New and Original, ensuring your machinery protection system (MPS) operates with factory-certified switching integrity.

Technical Specifications

The 1444-RELX00-04RB provides robust mechanical switching for industrial safety loops:

Engineering Advantages

The 1444-RELX00-04RB addresses complex machinery protection requirements through specific hardware advantages:

• Scalable Protection Architecture: One 1444-DYN04-01RA measurement module supports up to three 1444-RELX00-04RB expansion modules. This scalability allows engineers to manage up to 12 additional relay outputs per monitoring node, facilitating complex multi-level voting logic (e.g., 2-out-of-3) for critical turbine or compressor trips.

• Versatile SPDT Switching: The SPDT (Form C) relay configuration provides both normally open and normally closed contacts. This allows the system to simultaneously trigger an audible alarm while cutting power to a motor starter, or to provide failsafe status feedback to a supervisory ControlLogix® processor.

• Direct Hardware Linkage: The expansion bus provides high-speed communication between the measurement module and the relays. This direct link bypasses the standard network latency, ensuring the system executes trip commands in milliseconds once a vibration threshold exceeds safety limits.

• Simplified Maintenance with Modular Connectors: Use of the 1444-REL-RPC connector set ensures rapid and error-free wiring. The modular interface allows for quick replacement of the relay unit without disturbing the field wiring on the 1444-TB-B base, significantly reducing Mean Time to Repair (MTTR) during critical plant outages.

• Rugged Safety Integration: This module carries specific safety certifications for machinery protection. It withstands the electrical transients and mechanical vibrations common in power generation and heavy industrial environments, preventing nuisance trips while ensuring functional safety when needed.

FAQs

• Can I use the 1444-RELX00-04RB as a standalone relay?

  No. The 1444-RELX00-04RB functions exclusively as an expansion module. It requires a connection to a Dynamix 1444-DYN04-01RA dynamic measurement module to receive logic commands and power for the relay coils.

• What additional hardware do I need for a complete installation?

  A complete installation requires the 1444-RELX00-04RB module, the 1444-TB-B terminal base for DIN rail mounting, and the 1444-REL-RPC connector set to link the expansion module to the main measurement unit.

• How many of these modules can I daisy-chain together?

  You can connect a maximum of three 1444-RELX00-04RB modules to a single 1444-DYN04-01RA module. This provides a total of 12 SPDT expansion relays plus any relays integrated into the main unit.

• Is this a 100% brand new Allen Bradley original product?

  Yes. We guarantee that every 1444-RELX00-04RB we ship is 100% Brand New and Original. The unit arrives in the factory-sealed Allen Bradley box with all authentic UPC codes, serial numbers, and manufacturer documentation intact.