6AG1321-1CH20-2AA0 Siemens S7-300
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Product description
6AG1321-1CH20-2AA0 SIPLUS S7-300 SM 321 Digital Input Module
The Siemens 6AG1321-1CH20-2AA0 is a SIPLUS S7-300 SM 321 digital input module. It is designed for reliable signal acquisition in challenging automation systems. Unlike other versions, this SIPLUS edition has several unique features.
Protective coating that conforms to its shape is applied during production. As a result, you won’t have to worry about being harmed by chemically hostile surroundings, dust, or humidity.
With proper operation, the module can withstand temperatures between -25 °C and +70 °C. Even in environments where exposed electronics are vulnerable to extreme temperature swings, it keeps running smoothly.
Specialised digital input capability
The 6AG1 321-1CH20-2AA0 functions with a 48-125 V DC input range and has 16 isolated digital inputs (DI). The 6AG1 321-1CH20-2AA0 functions with a 48-125 V DC input range and has 16 isolated For this reason, it finds extensive application in manufacturing. In these regions, higher DC voltages are typical, making a wider range of field equipment compatible. Equipment for monitoring, safety switches, and robust sensors are all part of this.
Engineers may easily integrate the module into Siemens S7-300 systems thanks to the 20-pole connector, which allows uncomplicated installation and wiring.
Industrial applications:
This input module is an excellent fit for:
- Utilities and power generation – capturing control signals from equipment that uses higher DC inputs
- Transportation and infrastructure – reliable operation in roadside, rail, or tunnel automation environments
- Manufacturing and process industries – stable monitoring of devices in harsh, high-stress production settings
By combining durability with compatibility, the 6AG1321-1CH20-2AA0 helps operators reduce downtime and maintain safety-critical automation tasks.
The module is still small and lightweight, with dimensions of 13 cm in length and 4.7 cm in height, and a weight of only 0.251 kg, even if it is built tough. Without compromising on input density or dependability, its small footprint makes it a practical choice for cabinets with limited space.
- EAN: 4025515136170
- Country of Origin: Germany
- Commodity Code: 85389091
- Category: Controllers, Distributed I/O Devices, I/O Extension Modules, Siemens Simatic S7
End of service planning
Important Notice: The Siemens 6AG1321-1CH20-2AA0 will be discontinued on 1st October 2025. It is strongly recommended that operators secure spare units now to ensure continuity of service.
6AG1321-1CH20-2AA0 SIPLUS S7-300 SM 321 Digital Input Module
The Siemens 6AG1321-1CH20-2AA0 is a SIPLUS S7-300 SM 321 digital input module. It is designed for reliable signal acquisition in challenging automation systems. Unlike other versions, this SIPLUS edition has several unique features.
Protective coating that conforms to its shape is applied during production. As a result, you won’t have to worry about being harmed by chemically hostile surroundings, dust, or humidity.
With proper operation, the module can withstand temperatures between -25 °C and +70 °C. Even in environments where exposed electronics are vulnerable to extreme temperature swings, it keeps running smoothly.
Specialised digital input capability
The 6AG1 321-1CH20-2AA0 functions with a 48-125 V DC input range and has 16 isolated digital inputs (DI). The 6AG1 321-1CH20-2AA0 functions with a 48-125 V DC input range and has 16 isolated For this reason, it finds extensive application in manufacturing. In these regions, higher DC voltages are typical, making a wider range of field equipment compatible. Equipment for monitoring, safety switches, and robust sensors are all part of this.
Engineers may easily integrate the module into Siemens S7-300 systems thanks to the 20-pole connector, which allows uncomplicated installation and wiring.
Industrial applications:
This input module is an excellent fit for:
- Utilities and power generation – capturing control signals from equipment that uses higher DC inputs
- Transportation and infrastructure – reliable operation in roadside, rail, or tunnel automation environments
- Manufacturing and process industries – stable monitoring of devices in harsh, high-stress production settings
By combining durability with compatibility, the 6AG1321-1CH20-2AA0 helps operators reduce downtime and maintain safety-critical automation tasks.
The module is still small and lightweight, with dimensions of 13 cm in length and 4.7 cm in height, and a weight of only 0.251 kg, even if it is built tough. Without compromising on input density or dependability, its small footprint makes it a practical choice for cabinets with limited space.
- EAN: 4025515136170
- Country of Origin: Germany
- Commodity Code: 85389091
- Category: Controllers, Distributed I/O Devices, I/O Extension Modules, Siemens Simatic S7
End of service planning
Important Notice: The Siemens 6AG1321-1CH20-2AA0 will be discontinued on 1st October 2025. It is strongly recommended that operators secure spare units now to ensure continuity of service.
