Omron CQM1-OC224

Excellent choice! The Omron CQM1-OC224 is a very popular module in the surplus market, specifically because it’s the “Independent” version. While other modules share a common connection, this one gives you more flexibility.

Here is the technical and market breakdown for your records:

⚙️ Technical Specifications

• Module Type: Relay (Contact) Output Module.

• Outputs: 8 points.

• Connection Type: Independent Commons (This is the big selling point! Each relay is electrically isolated, so you can switch different voltages on different pins).

• Switching Capacity: * 2A at 250V AC.

  • 2A at 24V DC.

• Max Capacity: 16A per module (total).

• Mounting: Standard CQM1/CQM1H series (no backplane required).

🛠️ Why This One is “Gold” in Surplus

• Mix-and-Match Loads: Because the commons are independent, a technician can use one module to control a 230V AC motor starter on one pin and a 24V DC signal light on another. This makes it a “universal” spare part for small panels.

• Relay Reliability: Since these use physical relays, they are much easier for local electricians to test than transistor-type modules. If you hear the “click,” it’s usually working!