PHOENIX 2CO RELAY REL-IR-BL/L-12DC/2X21

The **Phoenix Contact 2CO Relay REL-IR-BL/L-12DC/2X21** is a specific type of relay produced by **Phoenix Contact**, a well-known company specializing in industrial automation and electrical connection technology. Here's a breakdown of the key features:

1. **Relay Type**: This is a **2CO (two changeover contacts) relay**, meaning it has two independent sets of contacts that can switch between different states (normally open and normally closed). These are used for controlling high-power circuits with low-power control signals.

2. **Coil Voltage**: The **12DC** part of the model indicates that the relay operates with a **12V DC** coil voltage.

3. **Number of Contacts**: The **2X21** portion of the part number usually refers to the relay's contact configuration. In this case, it likely indicates two sets of **SPDT (Single Pole Double Throw)** contacts or a similar configuration. The "X" can sometimes be a placeholder for an additional variant (e.g., "2x21" might refer to a specific type of contact arrangement, such as 2 normally open and 1 normally closed contact per set).

4. **Relay Type and Application**: This relay is used for a wide range of industrial automation tasks, such as switching control signals for devices like motors, sensors, or alarms, within systems requiring **low power control and high power switching**.

5. **Markings and Standard Compliance**: As with most Phoenix Contact products, it would likely be compliant with international safety standards such as UL, CE, and others, depending on the region.

6. **Form Factor**: This relay is probably designed to be mounted on a DIN rail for ease of installation in industrial control panels.

Let me know if you need more detailed specifications or applications for this particular relay!