Siemens 6ES7400-0HR00-4AB0 CPU 412-3H

Series#: Siemens

Product Details

Siemens SIMATIC S7-400H Bundle 6ES7400-0HR00-4AB0 – High-Availability Redundant CPU 412-3H System for Critical Process Control.
Dual CPU 412-3H Redundancy – Automatic failover ensures uninterrupted operation in power generation, oil & gas, and chemical applications.
Complete Package Includes: 2x PS407 UC Power Supplies, UR2-H Redundancy Unit, 4x Synchronization Modules & Cables, and 4x Buffer Batteries.
1 MB RAM per CPU (2 MB total) with battery-backed retentive memory for program and data integrity during power loss.
Integrated PROFIBUS DP/MPI Interfaces for seamless fieldbus communication and system expansion.
Engineered for Scalability – Expand with additional I/O, communication, and functional modules as your automation demands grow.

Specification

The Siemens SIMATIC S7-400H Bundle 6ES7400-0HR00-4AB0 is a fully redundant, high-availability control system designed for mission-critical industrial processes where downtime is not an option. This system bundle integrates two CPU 412-3H units, each equipped with 1 MB of RAM, to provide seamless automatic failover in the event of a primary CPU failure. The package includes two PS407 UC power supplies (120/230V AC, 10A each) for redundant power, a UR2-H redundancy unit for CPU synchronization, four synchronization modules with 1-meter cables, and four buffer batteries to safeguard retentive data. With integrated PROFIBUS DP/MPI interfaces, the system supports extensive fieldbus networking and can be expanded with additional I/O and communication modules. Ideal for process automation in chemical, oil & gas, water treatment, and power generation sectors, this bundle ensures maximum system availability and operational continuity.

Specification	Details
Product Model	6ES7400-0HR00-4AB0
Product Series	SIMATIC S7-400H
System Configuration	H-system bundle with redundant CPU setup
CPU Type	412-3H
Redundancy	High availability system with dual CPUs for automatic failover
Integrated Interfaces	PROFIBUS DP/MPI (depending on CPU module specifications)
Power Supply	2x PS407 UC, 120/230V AC, 10A each, redundant
Additional Hardware	1x UR2-H redundancy unit; 4x synchronization modules; 2x 1m synchronization cables; 4x buffer batteries
RAM Capacity	1 MB per CPU (total 2 MB with redundancy)
Retentive Memory	Backed up by buffer batteries for program and data retention during power loss
Programming Software	STEP 7 V5.x or higher
Processing Capabilities	Fixed-point and floating-point arithmetic; high-speed execution for complex automation tasks
Program Block Quantities	Unlimited DBs, FBs, FCs, OBs (limited only by RAM capacity)
Timers and Counters	Unlimited (limited only by RAM capacity); retentivity ensured by buffer batteries
Scalability	Expandable with additional I/O modules, communication modules, and functional modules
Application Areas	Process automation in chemical, oil & gas, water treatment, power generation, and other heavy industrial sectors requiring high availability