Skip to content

What are you looking for?


You may also like

NEMA Controller Series | Allen Bradley 1402-LS51 | Line Synchronization ModuleNEMA Controller Series | Allen Bradley 1402-LS51 | Line Synchronization ModuleNEMA Controller Series | Allen Bradley 1402-LS51 | Line Synchronization Module
NEMA Controller Series | Allen Bradley 1402-LS51 | Line Synchronization Module
NEMA Controller Series | Allen Bradley 1402-LS51 | Line Synchronization Module
NEMA Controller Series | Allen Bradley 1402-LS51 | Line Synchronization Module

NEMA Controller Series | Allen Bradley 1402-LS51 | Line Synchronization Module


Only 10 left - Selling fast

PRODUCT SKU : 1402-LS51

PRODUCT TYPE : Line Synchronization Module

PRODUCT VENDOR : Allen-Bradley


  • 100% Genuine Parts – Risk-Free 30-Day Returns
  • 1-Year Warranty & Expert Support for Every Order

Product Details

Product Description

The Allen Bradley 1402-LS51 is a solid-state line synchronization module designed for use in three-phase systems. Built for precision and reliability, it integrates seamlessly into the standard 1771 I/O chassis and occupies two slots. With advanced synchronization capabilities, dielectric withstand voltage, and SIL-rated performance, this module is engineered for power monitoring, protection, and management applications.

Technical Specifications

  • Manufacturer: Allen Bradley

  • Product Line: NEMA Controller Operator Kit

  • Part Number: 1402-LS51

  • Series: Power Monitoring, Protection, and Management Products

  • Product Type: Line Synchronization Module

  • Weight: 7.44 lbs (3.37 kg)

  • Compatible Systems: 3-phase electrical systems

  • Mounting Chassis: Standard 1771 I/O chassis

  • Slots Required: 2

  • Equipment Type: Solid-state

  • Current Capacity: 0–5 A RMS continuous, 200 A RMS for 1 second

  • Frequency Range: 40–100 Hz steady-state

  • Dielectric Withstand Voltage: 2500 V RMS

  • Operating Temperature: 0–60 °C

  • Current Input Burden: 0.05 VA

  • Voltage Step Accuracy: 0.05% increments

  • Voltage Input Impedance/Burden: 728K / 0.02 V

  • Phase Resolution: 1° step

  • Backplane Current Draw: 1.1 A at 5 VDC (2.2 A inrush for 5 ms)

  • Open/Closed Equipment: Open type

Application Scenarios

  • Synchronization of three-phase electrical systems in industrial environments

  • Power monitoring and protection in high-reliability installations

  • Integration into Allen Bradley 1771 chassis for modular system expansion

FAQ

Q: How many slots does the 1402-LS51 require in the chassis?  A: It occupies two slots in the 1771 I/O chassis.

Q: What type of systems is this module compatible with?  A: It is designed for three-phase systems requiring synchronization and monitoring.

Q: What is the dielectric withstand voltage rating?  A: The module withstands up to 2500 V RMS.

Comparison with Similar Models

  • 1402-LS51: Line synchronization, solid-state, 3-phase systems

  • 1402-LS41: Standard synchronization module, lower current capacity

  • 1402-LS71: Advanced synchronization with extended monitoring features

Additional Information

  • 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
  • 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
  • 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
  • Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
  • Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
  • Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.




Recently Viewed Products

Tech & Buying Guide

Technical Insights, Installation Guides, and Buying Tips
Understanding PLC Redundancy in Industrial Automation: Ensuring Reliability and Continuous Operation

Understanding PLC Redundancy in Industrial Automation: Ensuring Reliability and Continuous Operation

In industrial automation, PLC redundancy ensures uninterrupted control and system reliability. By using backup processors and communication paths, these systems instantly take over during failures, minimizing downtime and protecting critical operations, safety, and productivity in modern industrial environments.

Read more
Allen-Bradley AADvance Controllers: Scalable Safety and Performance for Modern Industrial Automation

Allen-Bradley AADvance Controllers: Scalable Safety and Performance for Modern Industrial Automation

Allen-Bradley AADvance Controllers provide advanced, modular control for complex industrial automation systems. Designed for both standard and safety-critical operations, they deliver powerful processing, flexible I/O, and scalable performance for next-generation process and factory automation.

Read more
Examples of SCADA and PLC Configuration Systems in Industrial Automation

Examples of SCADA and PLC Configuration Systems in Industrial Automation

Learn how SCADA and PLC configurations are structured across small, medium, and large-scale industrial facilities. Explore system design strategies, redundancy requirements, and best practices for reliable industrial automation.

Read more