Description
Product Overview
The 6ES7321-1BH02-0AA0 SM 321 module is designed to expand the input capabilities of the SIMATIC S7-300 system. With 16 isolated digital inputs at 24 V DC, it ensures reliable signal detection and protection from interference. Its 20-pole connector simplifies integration into distributed I/O systems. This module is ideal for factory automation, control panels, and complex industrial machinery where robust and accurate digital input processing is required.
Key Features
16 isolated digital inputs
Input voltage: 24 V DC
1x 20-pole connection
Suitable for SIMATIC S7-300 systems
High reliability and signal isolation
Ideal for industrial automation and machinery control
Warranty & After-Sales
Factory new: Kairock 12-month warranty
Technical support for installation and configuration
Global shipping and replacement services
Delivery Time
Stock availability: 3–5 working days
Non-stock/custom orders: per agreement
Why Choose Kairock
China-based sourcing with efficient procurement and supply chain management
Global shipping for distributors, integrators, and repair partners
Trusted trade partner for Siemens automation components
Professional after-sales support and technical guidance
Applications
Expansion of digital input capacity in S7-300 systems
Industrial automation and process control
Factory automation and machinery monitoring
Control panels requiring isolated digital inputs
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