Siemens 6ES7321-1BL00-0AA0 Digital Input Module

The Siemens SIMATIC S7-300 SM 321 Digital Input Module 6ES7-321-1BL00-0AA0 offered 32 isolated digital inputs (24 V DC) for reliable signal acquisition in industrial automation systems. Its robust design and 40-pole connector allowed easy integration into the S7-300 platform.

Technical Specifications

Model: 6ES7321-1BL00-0AA0 Siemens
Type: Digital Input Module (SM 321) for SIMATIC S7-300 Series

Power & Performance

• Digital Inputs: 32 DI (24 V DC, Isolated)
• Connection Type: 1 x 40-pole front connector
• Isolation: Yes

Interfaces & Communication

• System: SIMATIC S7-300 Series
• Signal Type: 32 Digital Inputs

Physical Specifications

• Net Weight: 0.300 kg
• Packaging Dimensions (W x H x D): 12.80 cm x 15.00 cm x 5.00 cm
• Package Size Unit of Measure: CM
• Quantity Unit: 1 Piece
• Packaging Quantity: 1
• Country of Origin: Germany

Product Lifecycle & Compliance

• Product Lifecycle (PLM): PM400 – Announcement of Product Phase-Out
• Product Phase-Out Date: 01.10.2023
• Export Control Regulations: AL: N / ECCN: 9N9999
• Compliance with RoHS Directive: Since 31.03.2008
• WEEE Take-Back Obligation: Yes
• REACH Art. 33 Candidate Substances:
  • Lead monoxide (CAS-No. 1317-36-8 > 0.1% w/w)
• SCIP Number: 177e9905-b56c-41e6-ad66-a364ff9a0085

Additional Product Information

• EAN: 4025515060772
• UPC: 662643175493
• Commodity Code: 85389091
• Catalog ID: ST73
• Product Group: 2288
• Group Code: R151
• Product Class: A – Standard stock product, returnable within guidelines

Key Features & Benefits:

✅ 32 Isolated Digital Inputs: Handles large input signal requirements.

✅ 24 V DC Input Voltage: Standard for industrial applications.

✅ Compact 40-Pole Connection: Supports efficient system wiring.

✅ Reliable Siemens Build Quality: Designed for long-term industrial use.

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