MeloAuto-Trusted PLC & DCS Parts Supplier
High-Density Output Control
The 6ES5445-3AA11 provides 32 digital output channels for the Siemens SIMATIC S5 programmable controller series. This high-density module controls a wide array of field devices from a single slot. Each channel delivers a 24 VDC signal with built-in short-circuit protection. The module efficiently switches loads like relays, solenoid valves, and indicator lamps. Consequently, it maximizes I/O density while minimizing cabinet space requirements.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Series | SIMATIC S5 |
| Category | Digital Output Module |
| Part Number | 6ES5445-3AA11 |
| Number of Outputs | 32 (isolated groups of 8) |
| Output Voltage | 24 VDC (nominal) |
| Output Current | 0.5 A per channel (maximum) |
| Total Output Current | 4 A (per module) |
| Short-Circuit Protection | Yes (electronic, per channel) |
| Output Delay | 0.5 ms (ON to OFF) |
| Isolation Voltage | 500 VAC (group-to-backplane) |
| Power Supply | 5 VDC (backplane) + 24 VDC (external load) |
| Power Consumption | 200 mA (5 VDC), 100 mA (24 VDC) |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Dimensions | Standard S5 single-width |
| Weight | 0.4 kg |
| Status Indicators | 32 LEDs (per-channel output status) |
| Terminal Type | Screw terminal (removable) |
Protection and Diagnostics
The 6ES5445-3AA11 includes individual channel short-circuit and overload protection. An auto-reset function automatically restores operation after fault removal. The module also monitors external supply voltage and indicates faults via a group LED. Each channel features a dedicated LED for immediate status identification. These diagnostic capabilities significantly reduce troubleshooting time. Moreover, the module’s electronic protection eliminates the need for external fuses. This simplifies panel design and reduces component costs.
Application and Integration
Common applications include industrial automation, conveyor systems, packaging machinery, and material handling. The 6ES5445-3AA11 interfaces seamlessly with the S5 backplane. It supports both 2-wire and 3-wire load configurations. The module’s high channel count makes it ideal for large control systems. It permits hot-swapping for maintenance without powering down the entire rack. This feature minimizes production downtime during module replacement.
Output Drive Characteristics
The 6ES5445-3AA11 delivers fast switching speeds for precise control applications. The output delay of 0.5 ms supports high-speed sequencing operations. Each output can drive inductive loads with integrated flyback diode protection. The module also handles capacitive loads without damaging internal circuits. Furthermore, it operates reliably at the full temperature range without derating.