Siemens 6ES7422-5EH00-0AB0 - High Power AC Output Module

This is the Siemens 6ES7422-5EH00-0AB0 module. It is a powerful 16-channel AC output card for the S7-400 PLC. It controls high voltage AC loads like motors and heaters. Each output can switch up to 2 Amps at 120V AC. This module offers strong optical isolation for safe operation. Please note: Siemens has discontinued this model. We sell remaining stock with full support.

Key Benefits At a Glance

• High Power Control: Handles tough industrial AC loads directly.
• Strong Isolation: Optically isolated for safety and noise protection.
• Simple Wiring: 1-point-per-common design for easier installation.
• Proven Reliability: Built by Siemens for demanding automation tasks.

Complete Technical Specifications

Brand & Series: Siemens SIMATIC S7-400

Model Number: 6ES7422-5EH00-0AB0 (Digital Output Module SM 422)

Module Type: 16 Digital Outputs, AC Voltage

Output Voltage Range: 20V to 120V AC

Output Current: 2 Amps per channel (Maximum)

Isolation Type: Optical Isolation (Channel to Channel, Channel to Logic)

Switching Type: 1 Point per Common

Product Status: Discontinued by Manufacturer (Last Stock Available)

Net Weight: Approximately 1.04 kg

Package Dimensions: 23.3 cm x 29.9 cm x 3.7 cm

Country of Origin: United States of America

Important Usage Notes

This module connects to 20-120V AC loads. Ensure your load power matches the module rating. Maximum current is 2A per output. Use proper fusing for each circuit. This module is ideal for legacy system maintenance or specific project needs.

Package & Warranty

What's in the Box: One Siemens 6ES7422-5EH00-0AB0 digital output module.

Our Promise: We provide a 12-month warranty on this product from your purchase date.

Shipping Information

We ship quickly worldwide. You can choose from FedEx, UPS, or DHL.

Frequently Asked Questions (FAQ)

What can I control with this module?

You can control AC contactors, solenoid valves, motor starters, indicator lamps, and small heating elements that work within its voltage and current limits.

Is this module still good for new projects?

It is discontinued, so we do not recommend it for new designs. It is best for repairing or extending the life of an existing S7-400 system that already uses this specific 6ES7422-5EH00-0AB0 card.

How do I wire the outputs?

Each output has its own connection point, but they share a common terminal in groups. Always follow the Siemens S7-400 installation manual for correct wiring diagrams and safety.

What does "optically isolated" mean?

It means the control side (PLC) and the power side (your load) are separated by a light signal inside the module. This protects the sensitive PLC electronics from high-voltage spikes or noise on the load side.

Can I get a replacement if it fails?

Yes. During the 12-month warranty period, we will repair or replace a faulty unit. For out-of-warranty support, we offer troubleshooting and may have spare units available.

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