Siemens S7-400 16-Channel Digital Output Module: High-Current, Isolated Control

Take command of your automation with this powerful 16-channel digital output module. Designed for Siemens S7-400 PLCs, it delivers 2A per channel at 24V DC to drive relays, contactors, solenoids, and indicators. Features built-in short-circuit protection and full electrical isolation for safe, reliable operation in industrial control panels.

Core Features & Benefits

High Output Power: Each output handles up to 2A continuous current, perfect for direct control of substantial loads.

Built-in Protection: Electronically protected against short-circuits and inductive voltage spikes, safeguarding your module and connected devices.

Fast & Reliable Switching: Very low 1ms switching delay ensures precise and responsive control of your processes.

Isolated for Safety: Channels are isolated in groups, preventing interference and allowing flexible wiring to different voltage commons.

Complete Technical Specifications

Brand: Siemens SIMATIC

Model: S7-400 SM 422 Digital Output Module

Full Article Number: 6ES7422-1BH11-0AA0

Output Channels: 16, isolated in groups of 8.

Output Type: Solid-state, 24V DC sink/source.

Load Voltage (L+): 24V DC (20.4V - 28.8V range).

Output Current per Channel: 2A rated (up to 2.4A max).

Short-Circuit Protection: Yes, electronic (2.8-6A typical response).

Switching Delay: Max. 1ms (ON and OFF).

Max Switching Frequency: Resistive Load: 100 Hz. Inductive Load: 0.1 Hz.

Backplane Power: 5V DC, max. 160 mA.

Power Loss: Typical 5W.

Total Current per Group: Max. 3A (up to 40°C).

Cable Length: Shielded: 1000m max. Unshielded: 600m max.

Isolation Test: 500V DC.

Dimensions (WxHxD): 25 x 290 x 210 mm.

Weight: Approx. 600 g.

Installation & Compatibility

This module installs directly into any Siemens S7-400 PLC rack. Ensure your 24V DC load power supply can deliver the required total current. Use proper fusing for the main load circuit. For inductive loads like solenoids, always use flyback diodes or suppressors as recommended. Always follow local electrical codes.

Certifications & Warranty

Designed and tested to meet strict industrial standards. This product is backed by a 12-month warranty from the date of purchase against manufacturing defects.

Packaging & Shipping

Package Includes: One Siemens 6ES7422-1BH11-0AA0 Digital Output Module. We ship promptly worldwide via FedEx, UPS, and DHL.

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