6AG1321-1FF01-2AA0 Siemens S7-300

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Siemens 6AG1321-1FF01-2AA0 SIPLUS S7-300 SM 321 digital input module, 8DI 120/230 V AC

Part Specifications

Manufacturer: Siemens HS Code: 85389091 EAN: 4025515136187 SKU: 6AG1321-1FF01-2AA0 Country of Origin: DE Product Weight: 0.356 KG Packaging Height: 4.80 CM Packaging Length: 15.00 CM Packaging Width: 15.00 CM
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Full 12-month warranty

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Product description

6AG1321-1FF01-2AA0 Siemens SIPLUS S7-300 SM 321 Digital Input Module

The Siemens 6AG1321-1FF01-2AA0 is a SIPLUS S7-300 SM 321 digital input module. It is designed for robust and reliable automation in demanding industries. The trusted 6ES7321-1FF01-0AA0 serves as the foundation for this hardened SIPLUS variant.

It features a conformal coating that provides protection against dust, condensation, and harsh environmental conditions. These factors often lead to a reduced lifespan for standard electronic modules.

The module has an operating temperature range of –40 °C to +70 °C. This makes it a strong choice for facilities that are exposed to fluctuating or extreme climates. It is designed to operate reliably in various environments. This includes cold storage, offshore platforms, and hot production plants, where others might struggle.

Key electrical features:

The 6AG1 321-1FF01-2AA0 features 8 isolated digital inputs (DI). These inputs are specifically designed for AC voltage operation at either 120 V or 230 V. For sectors that deal with more powerful digital signals and need a solution that can withstand the test of time, this is a great option. Installation is made easy within Siemens S7-300 PLC environments with the help of a 20-pole connector, which simplifies integration.

Because of its small size, it can be easily installed into control cabinets without taking up too much room, and it yet provides reliable voltage input capability.

Applications across industries:

This SIPLUS input module is particularly valuable for:

  • Power generation and utilities – for monitoring heavy-duty systems with AC inputs
  • Industrial machinery – managing AC-based control signals from field devices
  • Transport and infrastructure – enabling reliable signal capture in harsh roadside or rail environments
  • Process industries – delivering accuracy and resilience in chemical or heavy manufacturing plants

In harsh environments, the 6AG1321-1FF01-2AA0 increases equipment protection, decreases downtime, and lengthens the lifespan of automation systems.

  • EAN: 4025515136187
  • Country of Origin: Germany
  • Commodity Code: 85389091
  • Category: Controllers, Distributed I/O Devices, I/O Extension Modules, Siemens Simatic S7

Lifecycle Information

Obsolescence Notice: The Siemens 6AG1321-1FF01-2AA0 will be phased out by 1st October 2025. Operators should secure spare modules now to guarantee long-term support.

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