Description
The Siemens 6ES7222-1HF22-0XA8 is a Digital Output Expansion Module (EM 222) designed for the SIMATIC S7-200 CN series PLCs. This module provides 8 relay outputs, allowing the PLC to control external devices such as contactors, solenoids, and indicator lamps directly without the need for intermediate relays. It features galvanic isolation between the PLC logic and the field side, protecting the CPU from voltage spikes and enabling mixed-voltage loads on the same module. With plug-and-play functionality and automatic addressing via STEP 7-Micro/WIN software, it simplifies system integration and commissioning .
Key Features
- Digital Output Expansion Module for S7-200 CN PLCs
- Output Type: 8 Relay Outputs (Electromechanical)
- Contact Rating: 2 A per channel (AC 250 V / DC 24 V)
- Isolation: Galvanic isolation between PLC and field
- Configuration: Plug-and-play, auto-addressed by STEP 7-Micro/WIN
- Mounting: DIN-rail snap-fit, suitable for shallow cabinets
- Protection Rating: IP20
- Operating Temperature: 0°C to +55°C
- Standards: CE, UL, RoHS compliant
Technical Specifications
- Supply Voltage: Via backplane bus from CPU
- Output Configuration: 8 relay outputs, normally open (NO) contacts
- Switching Capacity: 2 A per channel (resistive load)
- Max. Switching Voltage: 250 V AC / 24 V DC
- Power Loss: Typical 2 W
- Dimensions: 120 mm × 80 mm × 62 mm (H×W×D)
- Weight: Approx. 0.2 kg
- Connection: Plug-in screw terminals
- Isolation: Tested with 500V AC for 1 minute
Warranty & After-Sales
- Factory new units: 12 months warranty
- Refurbished units: 3-6 months warranty
- Technical support for configuration and installation
- Compatibility verification with S7-22X CPUs
- Commissioning and diagnostics support available
Delivery Time
- Standard delivery: 3-5 working days
- Express shipping available upon request
Why Choose Our Store
- Genuine Siemens components
- Global supply network with competitive pricing
- Expertise in industrial automation systems
- Comprehensive technical documentation
- Responsive customer service and support
Applications
- Control of contactors and motor starters
- Switching solenoids and pneumatic valves
- Indicator lamp and alarm horn control
- Packaging machinery and conveyor systems
- HVAC fan control and small process skids





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