Description
Product Overview
The Siemens SIMATIC S7-400H 6ES7960-1AA04-0XA0 is a synchronization module V4, specifically developed for high-availability redundant systems. It ensures reliable communication and synchronization between CPUs using a patch cable of up to 10 meters. As a replacement part, it is critical for maintaining system uptime in industrial automation where redundancy and fault tolerance are required.
Key Features
Synchronization module V4 for S7-400H systems
Replacement part for redundancy applications
Supports synchronization with patch cable up to 10 m
Optimized for fault-tolerant and high-availability automation
Ensures system stability and reduced downtime
Warranty & After-Sales
Factory New: 12-month KaiRock warranty
Used/Refurbished: 3–6 months warranty
Dedicated after-sales support and technical assistance
Delivery Time
Stock: 3–5 working days
Non-stock/customized: As agreed
Why Choose KaiRock
Trusted supplier of genuine Siemens replacement parts
Strong sourcing and supply chain advantage from China
Global shipping with fast delivery
Professional support for trade, repair, and integration companies
Applications
SIMATIC S7-400H automation systems
Redundant control systems requiring synchronization
Fault-tolerant industrial automation
Critical process industries (energy, oil & gas, utilities, manufacturing)





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