Siemens SM1222 Digital output, 8DO, 2A relay

Product Overview

The SIMATIC S7-1200 Digital Output Module SM 1222 provides dedicated high-power relay switching with 8 digital outputs. Featuring 2A relay contacts for each output channel, this module delivers robust switching capability for industrial automation applications requiring reliable control of motors, solenoids, lighting, and other high-current loads.

Key Features

• 8 High-Power Relay Outputs: Dedicated relay switching with 2A contact rating per channel
• Universal Voltage Compatibility: Relay contacts handle both AC and DC loads up to 250V
• Galvanic Isolation: Complete electrical isolation between control logic and switched loads
• Robust Contact Design: Mechanical relay contacts for reliable switching of inductive and resistive loads
• Compact Output Module: 45mm width with 8 high-current output channels for space-efficient installations
• Status Indication: Individual channel status LEDs for easy monitoring and troubleshooting

Technical Specifications

• Output Configuration: 8 Digital Outputs (Relay Contacts)
• Dimensions: 45 × 100 × 75 mm (W × H × D) | Weight: 0.177 kg
• Contact Rating: 2A per relay channel (resistive load)
• Voltage Range: AC/DC up to 250V | Contact Type: SPDT (Single Pole Double Throw)
• Operating Temperature: -25°C to +60°C | Protection: IP20
• Connection: Screw/spring clamp terminals | Switching Frequency: Up to 0.5 Hz

Applications & Integration

Primary Applications:

• Motor control and high-power actuator switching
• Industrial lighting control systems
• Valve and solenoid control in process automation
• HVAC control systems requiring relay switching

System Compatibility:

• All S7-1200 CPU models except CPU 1211C (requires signal modules)
• TIA Portal configuration with STEP 7 Basic programming environment
• Up to 8 modules per CPU with hot-swappable installation
• Standard 35mm DIN rail mounting with integrated connections

Quality & Compliance

• Status: Active Product (PM300) | Origin: Germany
• EAN: 6940408101944 | UPC: 887621216856
• RoHS Compliant: Since 15.03.2013 | WEEE: Take-back obligation applies
• REACH: Contains lead, lead oxide, and BPA above 0.1% w/w (safe when used as intended)

Package Contents

• 1 × SM 1222 Module (8 DO Relay), technical documentation, DIN rail hardware

Download existing graphical data for this product:

• Technical Datasheet
• Product Information Page
• SM 1222 Product Family
• TIA Portal Documentation
• Technical Specifications