The code PCM4.3 2044230081A 2044230080A refers to a set of components within an ABB Delomatic 400 series system, likely used for generator control and protection. Here's a breakdown of the information and how to find details:

**Components:**

* **PCM4.3:** This is most likely a **differential current relay** manufactured by DEIF, not ABB. Differential relays measure the difference in current flowing into and out of a system to detect faults like short circuits or leakage currents.
* **2044230081A** and **2044230080A:** These numbers likely represent the **part numbers** for specific versions or revisions of the PCB modules used within the PCM4.3 relay.

**Function:**

* The PCM4.3 relay, along with its PCB modules, protects generators from damage by detecting and reacting to abnormal current conditions. It achieves this by:
    * Continuously monitoring the current flowing in each phase of a three-phase system.
    * Identifying any significant difference between incoming and outgoing currents, which could indicate a fault.
    * Triggering alarms or disconnecting the generator from the grid in case of a detected fault.

**Applications:**

* The PCM4.3 relay with its PCB modules is likely used in various applications where generator protection is crucial:
    * Power generation plants
    * Industrial facilities with backup generators
    * Marine vessels with onboard generators
    * Renewable energy systems with generator integration

**Finding Information:**

* **DEIF Website:** While the specific part numbers might not be readily available on the ABB website, DEIF's website ([https://www.deif.com/](https://www.deif.com/)) offers information about their products. Search for "PCM4.3" or browse their generator protection relay product lines. You might find datasheets or manuals with detailed specifications.
* **Industrial Parts Distributors:** Look for online retailers or distributors specializing in industrial control and power generation equipment. They might list the DEIF PCM4.3 relay and its PCB modules with descriptions and compatibility information (be cautious about the accuracy of information for potentially discontinued parts).
* **Used Parts Suppliers:** Some online retailers focus on used industrial automation equipment. They might have the specific PCB modules (2044230081A & 2044230080A) but with limited information or documentation (proceed with caution regarding functionality and compatibility).

**Additional Notes:**

* The part numbers with specific revision codes (2044230081A & 2044230080A) suggest these might be specific versions of the original PCB modules used in the PCM4.3 relay.
* Working with generator control and protection systems often requires qualified personnel due to the critical role they play in ensuring safe and reliable power generation.

I hope this information is helpful! Let me know if you have any questions about generator protection relays, differential current relays, or the DEIF Delomatic 400 series system.