Siemens 6ES7321-7PF01-0AB0 S7-300 SM321 8 Point Digital Input Module

Core Performance & Industrial Application

The Siemens 6ES7321-7PF01-0AB0 is SM321 digital input module for SIMATIC S7-300 PLC. It provides 8 isolated digital input channels, designed for connecting AC 120V field signals. It supports signal acquisition from switches and sensors, integrated channel status LED indicators, plug-in design for S7-300 U-rack backplane.

Technical Specifications

▶ Product type: S7-300 SM321 digital input module, order no. 6ES7321-7PF01-0AB0

▶ Channels: 8 digital input points

▶ Rated input: AC 120 V

▶ Isolation: Galvanic isolation between channels and backplane

▶ Mounting: Plug into S7-300 rail rack

▶ Indicators: Channel status LED

▶ Operating temperature: 0 °C to +60 °C

▶ Protection rating: IP20 (cabinet installation)

▶ Net weight: approx. 0.18 kg

▶ Country of origin: Germany

▶ Compliance: CE, RoHS, UL

▶ Commodity code: 85389000

Industry Applications

Used in factory automation, packaging, chemical, water treatment and machinery control cabinets for collecting AC 120V discrete field signals.

Note: This product is discontinued, confirm hardware compatibility and alternative solution before ordering