The IS220PTURH1B is a **Turbine Protection I/O Module** developed by GE for use in their Mark VI Gas and Steam Turbine Control Systems. Here's a breakdown of the product details and specifications based on available information:

**Function:**

* The IS220PTURH1B interfaces with various sensors and actuators involved in protecting a gas or steam turbine during operation.
* It acquires critical data like speed, vibration, and temperature from sensors, and sends control signals to activate safety systems (e.g., trip valves) if it detects abnormal operating conditions that could damage the turbine.
* This module plays a vital role in ensuring safe and reliable turbine operation.

**Specifications (based on available information):**

* **Input/Output (I/O):** Supports connections to various sensors (e.g., speed pickups, vibration sensors, temperature sensors) and actuators (e.g., trip valves) used in the turbine protection system.
* The exact number and types of I/O connections depend on the specific model variant.
* **Communication:** Likely communicates with the Mark VI control system using a proprietary GE protocol.
* **Isolation:** Might provide electrical isolation between the turbine I/O signals and the control system for improved safety and noise reduction (confirmation needed from datasheet).

**Finding More Information:**

While the datasheet for the IS220PTURH1B might be difficult to locate due to its potential obsolescence within the Mark VI series, here are some ways to find more information:

* **GE Website (limited availability):** Search the GE website for "IS220PTURH1B" or "Mark VI Turbine Protection I/O Module." You might find product information pages or user manuals with some specifications, although these might be limited: [https://www.gegridsolutions.com/grid-automation.htm](https://www.gegridsolutions.com/grid-automation.htm)
* **Alternative Sources:**
    * Industrial parts suppliers or online marketplaces might have the datasheet or specifications listed. Search for "IS220PTURH1B datasheet" or "Mark VI Turbine Protection I/O Module datasheet".
    * Contact GE support directly through their website or by phone. They might be able to provide information on the IS220PTURH1B or suggest similar current modules used in the Mark VI system.
* **Technical Documentation:** Consider searching for Mark VI system manuals or technical documentation online. These resources might provide details on the functionalities and configuration of I/O modules like the IS220PTURH1B within the Mark VI architecture.

**Additional Notes:**

* The Mark VI system might have been updated with newer turbine protection I/O modules. Consider exploring GE's current offerings for the Mark VI system if you need a replacement or similar functionality.

I hope this information is helpful! Even though the official datasheet might be elusive, this breakdown should give you a good understanding of the IS220PTURH1B's role as a critical component in the turbine protection system of a GE Mark VI Gas and Steam Turbine Control System.