Operating Voltage:DC 24V
Output Configuration:8 Channels
Contact Rating:5A per channel
Isolation:Optically Isolated
Power Supply Compatibility:AC 120 – 230V
Communication Interface:RS485
Module Size:Compact
Dimensions:Width x Height x Depth: 2.7 x 2.5 x 1.6 inches
Weight:0.2 kg
Operating Temperature:-25°C to 60°C
Storage Temperature:-40°C to 85°C
Compliance Standards:EN 61131-2, IEC 61131-2
The Siemens SM422 Digital Output Module is a high-performance solution for industrial automation systems, providing seamless integration and enhanced control capabilities.
With an operating voltage range of DC 24V and a current rating of up to 5A, this module ensures efficient operation under various industrial conditions.
Featuring optically isolated relay outputs, it guarantees isolation between input and output circuits, reducing the risk of electrical interference and enhancing system reliability.
Equipped with an RS-485 communication interface, the module supports advanced control protocols, enabling seamless communication with other devices in the network.
Engineered for durability, the SM422 operates within a temperature range of -25°C to +60°C during normal operation and -40°C to +85°C for storage, making it suitable for harsh industrial environments.
The compact DIN rail mounting style allows for easy installation and space-saving design, ideal for modern, streamlined control systems.











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