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Reliable Interconnection Solution for SIMATIC S5 Systems
The Siemens 6ES5721-4BF00 plug cable provides a secure electrical connection between SIMATIC S5 programmable controllers and their I/O modules. This pre-assembled cable ensures reliable signal transmission for both digital and analog applications in industrial automation. It comes with factory-terminated connectors for straightforward installation and immediate system integration.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Model | 6ES5721-4BF00 |
| Series | SIMATIC S5 |
| Product Type | Plug Cable / Pre-assembled Connection Cable |
| Cable Length | 1 meter |
| Number of Cores | 20 (shielded) |
| Connector Type | 20-pin (both ends) |
| Connector Coding | Pin 1-20 assignment per S5 standard |
| Cable Material | PVC |
| Shielding | Braided copper shield |
| Operating Voltage | 60V DC |
| Current Capacity | 1A per conductor |
| Operating Temperature | -20°C to +70°C |
| Weight | 0.15 kg |
| Protection Rating | IP20 |
Construction and Signal Integrity
The Siemens 6ES5721-4BF00 features a braided copper shield that protects signals from electromagnetic interference. This shielding ensures clean data transmission even in electrically noisy factory environments. The 20-core configuration supports multiple signals through a single cable, reducing wiring complexity.
Ease of Installation
This pre-assembled cable eliminates time-consuming field termination and reduces installation errors. The factory-crimped connectors ensure consistent contact resistance across all pins. The 1-meter length provides adequate reach for adjacent rack connections while avoiding excess cable loops.
Application Compatibility
The cable suits connection between S5-95U and S5-100U racks, CPU units, and remote I/O modules. It handles both power and signal transmissions for digital and mixed modules. Furthermore, the 1A current capacity per conductor supports most I/O module requirements.
Durability and Environmental Resistance
The PVC jacket resists oils, solvents, and mechanical wear in industrial settings. The cable operates reliably across temperatures from -20°C to +70°C, covering diverse installation locations. The flexible design also allows routing in cable ducts and control cabinet channels.