SIMATIC S7-400 CR3 with 4 Slots, Steel Plate for Building S7-400 Central Units
$943.74 – $1,048.60
CR3 rack, steel plate — 4 slots, central rack for standard (non-fault-tolerant) systems, has both I/O bus and communication bus, no redundant power supply support. [VERIFIED via Siemens official datasheet]
Technical Specifications
| Product Type | Rack (CR3) |
| Material | Steel plate |
| Slots | 4 |
| Bus | I/O bus and communication bus |
| Redundancy | NOT supported — for standard systems only, not fault-tolerant H-systems |
Typical Applications
Small 4-slot central rack for compact standard S7-400 systems where only a few modules are needed and fault-tolerance is not required — not suitable for S7-400H redundant configurations.
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