Siemens 6ES7221-1BH32-0XB0 Digital Input Module

Siemens

Siemens 6ES7221-1BH32-0XB0 Digital Input Module

Item NO.:6ES7221-1BH32-0XB0

Product Parameters:Digital Input Module

Brand name :Siemens

Product type designation：SM 1221, DI 16x24 V DC

Rated value (DC)：24 V

Permissible range, lower limit (DC)：20.4 V

Permissible range, upper limit (DC)：28.8 V

From backplane bus 5 V DC, max.：130 mA

From load voltage L+ (without load), max.：4 mA; per channel

Power loss, typ.：2.5 W

Number of digital inputs：16

Rated value (DC)：24 V

For signal：5 V DC at 1 mA

For signal：15 V DC at 2.5 mA

The Siemens 6ES7221-1BH32-0XB0 is a digital input expansion module from the SIMATIC S7‑1200 series, designed to 

extend the input capacity of a PLC system by providing additional discrete signal acquisition points. As part of the SM1221 

family of input modules, it interfaces directly with S7‑1200 controllers to capture field input statuses and convert them into 

internal signals for logic processing, enabling flexible adaptation of the automation system to the specific requirements 

of industrial tasks.

Over 20 years of experience in industrial automation spare parts supply

Extensive inventory, including new, obsolete, and hard-to-find parts

Quality assurance with 1-year warranty and fast replacements

Global shipping and coverage

Customer-centric personalized support

24/7 customer support for order and shipment inquiries

Easy return and exchange process for defective or incorrect items

Assistance with documentation for customs or shipping

PLC and PAC Systems

HMI Panels and Operator Interfaces

Drives and Motor Control Systems

DCS and Process Automation

Industrial Sensors and Transmitters

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