Type:Digital Input
Model:6ES7221-1BH22-0XA0
Manufacturer:SIEMENS
Isolated Inputs:8
Power Supply Voltage:24V DC
Input Current:Maximum 50mA per channel
Operating Temperature:-25°C to +60°C
Dimensions (WxHxD):45.2mm x 103mm x 74mm
Weight:Approximately 180g
The SIEMENS 6ES7221-1BH22-0XA0 is engineered for maximum reliability and performance in industrial automation environments. Its optical isolation technology prevents interference from other electrical signals, ensuring accurate data acquisition without error.
This module is specifically designed for use with S7-21X CPUs, offering seamless integration and optimal compatibility for efficient system operation. With its robust design and compact size, it is ideal for space-constrained applications requiring precise digital input handling.
The inclusion of eight digital inputs allows for versatile configuration, accommodating a wide range of industrial sensors and switches. Each input is capable of sourcing or sinking currents up to 100 mA, providing flexibility in connection types and requirements.
The use of high-quality materials and precision manufacturing ensures long-lasting durability and reliability, even in harsh industrial environments. This makes the SIEMENS 6ES7221-1BH22-0XA0 a dependable choice for critical control systems where downtime cannot be tolerated.
Installation and setup are straightforward, thanks to the comprehensive documentation and user-friendly interface provided by SIEMENS. The module can be easily integrated into existing control systems, minimizing downtime during upgrades or maintenance operations.

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