

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 |
| Shipping | 100% Original and New – Ready for immediate global shipment |

What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22