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This digital output module drives actuators and indicators in SIMATIC S5 systems. It switches 16 independent channels simultaneously without signal interference. You can replace faulty units quickly thanks to the modular design.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand | Siemens |
| Model | Siemens 6ES5450-3AA11 |
| Category | Digital Output Module (SIMATIC S5 Series) |
| Dimensions (H x W x D) | 250 mm x 25 mm x 210 mm |
| Weight | 0.85 kg |
| Number of Outputs | 16 channels |
| Output Type | Transistor, PNP switching |
| Output Voltage | 24 V DC |
| Output Current | 0.5 A per channel |
| Total Current per Module | 8 A (maximum) |
| Isolation | 500 V AC between channels and backplane |
| Internal Components Count | 16 optocouplers + 1 PCB assembly |
| Interface Type | 48-pin front connector |
| Switching Delay | 0.2 ms (ON) / 0.3 ms (OFF) |
| Power Supply | 5 V DC from backplane + external 24 V DC |
| Current Draw (5V) | 100 mA typical |
| Built-in Energy Storage | 470 µF capacitor for output buffering |
| Protection Features | Short-circuit and overload protection per channel |
| Operating Temperature | 0°C to 60°C |
Detailed Feature Overview
This module includes 16 independent transistor outputs with PNP switching. Each output provides 0.5 A at 24 V DC continuously. The total module load cannot exceed 8 A simultaneously.
A 470 µF capacitor stores energy for brief output hold-ups. Consequently, your actuators receive stable signals during micro-power interruptions. The switching delay reaches just 0.2 ms for ON transitions.
You will find a 48-pin front connector for field wiring. This connector accepts 0.5 to 1.5 mm² wires easily. Each channel includes an optocoupler for electrical isolation from the backplane bus.
Installation and Compatibility
Siemens 6ES5450-3AA11 fits SIMATIC S5 racks like 6ES5950-xxxx. Use this module for solenoid valves, contactors, or indicator lamps. Always connect the external 24 V DC supply before operation.