8-Channel Relay Output Expansion for S7-200 PLCs
The 6ES7222-1HF22-0XA8 expansion module adds eight relay outputs to your SIMATIC S7-200 PLC system . This EM222 module specifically supports S7-22X CPUs and delivers reliable switching for various field devices . Each output channel handles up to 2 A of continuous current, making it suitable for driving contactors, solenoids, and indicator lamps . The module provides galvanic isolation between channels and the backplane bus for enhanced noise immunity.
Output Characteristics and Switching Capability
Each relay output on the 6ES7222-1HF22-0XA8 delivers 2 A rated current with resistive loads. The module supports 24 V DC load voltage, matching standard industrial control systems. Furthermore, the relay outputs offer flexibility for AC or DC switching applications. The module includes no integrated short-circuit protection, so you must provide external fusing .
Physical Dimensions and Installation
This compact module measures 45 mm in width, 80 mm in height, and 62 mm in depth . Its lightweight design, at approximately 153 g, simplifies DIN rail mounting . The module consumes only 2 W of power and draws minimal current from the backplane bus . It also features pluggable I/O terminals for straightforward wiring and maintenance.
Certifications and Compliance
The 6ES7222-1HF22-0XA8 carries CE approval and holds marine certifications including ABS, BV, and CCS . It also complies with China RoHS requirements for environmental safety. This module is designed exclusively for the S7-200 CN series, which is the Chinese market version of the product.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Product Series | SIMATIC S7-200 |
| Model | 6ES7222-1HF22-0XA8 |
| Module Type | Digital Output Expansion Module (EM222) |
| Number of Outputs | 8 (Relay) |
| Rated Output Current | 2 A per channel |
| Load Voltage | 24 V DC |
| Short-Circuit Protection | No (requires external fusing) |
| Power Loss | 2 W typical |
| Backplane Current Draw | Minimal |
| Dimensions (W x H x D) | 45 x 80 x 62 mm |
| Weight | Approx. 153 g |
| Mounting Type | DIN Rail |
| Connection Method | Pluggable I/O Terminals |
| Certifications | CE, ABS, BV, CCS, China RoHS |
| Compatibility | S7-22X CPUs only (CN version) |
| Galvanic Isolation | Yes (Optocoupler) |
Details
| Weight | 1.2 kg |
|---|---|
| Dimensions | 50 × 290 × 217 mm |
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