PLC | Siemens | 6ES7322-1HH01-0AA0 6ES7 322-1HH01-0AA0 SM 322 Digital Output Modules

Product Description: Siemens 6ES7322-1HH01-0AA0

The Siemens 6ES7322-1HH01-0AA0 is a digital output module from the SIMATIC S7-300 series, designed to provide 8 relay outputs capable of switching 120/230 V AC loads. This module is ideal for industrial applications that require direct control of high-voltage devices such as contactors, lamps, and actuators. With isolated outputs and robust switching capabilities, it ensures safe and reliable operation in demanding environments.

Key Features

• 8 relay-type digital outputs
• Supports switching of 120 V or 230 V AC loads
• Electrically isolated channels for enhanced safety
• Status LEDs for each output channel
• Reliable operation in industrial environments
• Suitable for both inductive and resistive loads

Technical Specifications

• Part Number: 6ES7322-1HH01-0AA0
• Number of Outputs: 8
• Output Type: Relay (electromechanical)
• Rated Voltage: 120/230 V AC
• Rated Current: Up to 2 A per channel
• Switching Voltage Range: 5 V DC to 230 V AC
• Switching Power (Resistive): Up to 2000 VA
• Isolation: Galvanic isolation between outputs and system
• Contact Life: 10⁶ operations (mechanical), dependent on load type
• Mounting Method: DIN rail (S7-300 rack)
• Dimensions (W × H × D): 40 mm × 125 mm × 120 mm
• Weight: Approx. 280 g
• Protection Class: IP20
• Operating Temperature: 0 °C to +60 °C
• Storage Temperature: –40 °C to +70 °C
• Certifications: CE, UL, cULus, EAC

Application Areas

• Industrial machinery requiring high-voltage switching
• Control of AC-powered actuators and indicators
• Process automation in utilities and manufacturing plants
• HVAC systems and building automation
• Automation environments using relay-based interfacing

Advantages

• Direct control of high-voltage AC loads without external relays
• Electrically isolated channels enhance operational safety
• Compact form factor fits standard S7-300 racks
• Long relay lifespan under standard switching conditions
• Easy configuration and integration with Siemens STEP 7 and TIA Portal