Helmholz DEA 300 Digital Input Module (700-321-1BH01)

SKU 700-321-1BH01

The Helmholz 700-321-1BH01 is a 16-channel digital input expansion module designed for seamless integration into SIMATIC S7-300 PLC and ET 200M systems. Engineered as a direct, drop-in replacement for the Siemens 6ES7321-1BH01-0AA0, this module processes 24 V DC binary signals from switches, sensors, and pushbuttons with full hardware compatibility and zero software re-configuration.

Manufacturer

Helmholz GmbH & Co. KG

Manufacturer material ID

700-321-1BH01

Category

DIGITAL INPUTS

HS code

85389091

UNSPSC

32151705

Net weight

0.25

Country of origin

DE

Availability

READY TO SHIP

Highlights

Product Series DEA 300 (SIMATIC S7-300 compatible)
Part Number 700-321-1BH01
Equivalent Siemens Part 6ES7321-1BH01-0AA0
Input Channels 16 Digital Inputs (2 groups of 8)
Nominal Input Voltage 24 V DC
Input Type IEC 61131-2 Type 1 (Sink/Source)
Front Connector 20-Pole
Dimensions (W x H x D) 40 mm x 125 mm x 117 mm

Additional information

Key Operational Features
16 Isolated Digital Inputs: Arranged into 2 galvanically separated groups of 8 channels operating on standard 24 V DC logic.

Direct Drop-in Replacement: Fully pin-compatible and function-identical with Siemens 6ES7321-1BH01-0AA0.

Clear Diagnostic Feedback: High-visibility green LEDs mounted on the front face supply real-time switching status for every individual channel.

Standard 20-Pole Wiring: Fits standard 20-pin front connectors (screw terminal or spring-loaded types), allowing quick swapping during maintenance.

Ideal Applications
Used across factory automation, material handling conveyors, packaging equipment, and water treatment control systems to capture digital status signals from proximity switches, limit sensors, and control panel buttons.