IS220PHRAH1A GE Model Parts Mark VIe control-system hardware family
The GE IS220PHRAH1A is listed within the GE Mark VIe control-system hardware family. However, the available technical documentation does not establish its exact functional description, I/O channel configuration, or electrical ratings with sufficient confidence.
Important: Do not confuse this model with the IS220PPRAH1A, which is a documented Emergency Turbine Protection I/O Pack. These are different part numbers and should not be treated as interchangeable.
| Parameter | Description |
|---|---|
| Manufacturer | General Electric (GE) |
| Model | IS220PHRAH1A |
| Product Family | Mark VIe |
| Product Category | Mark VIe control-system hardware |
| Hardware Type | Exact functional type requires confirmation |
| Revision | H1A |
| Application | GE industrial turbine control system |
| Electrical Ratings | Not verified |
| I/O Configuration | Not verified |
| Communication Interfaces | Not verified |
The following models should be carefully distinguished:
| Model | Identification |
|---|---|
| IS220PHRAH1A | Exact function not independently verified |
| IS220PPRAH1A | Emergency Turbine Protection I/O Pack |
| IS220PHRAH1B | Related PHRA hardware revision |
- Brand: GE
- Model: IS220PHRAH1A
- Product Name: HART Analog I/O Pack
- Dimensions: 176 mm × 117 mm × 43 mm
- Weight: 0.88 kg
- Origin: United States
- HS Code: 85371011
- Operating Temperature: −20 °C to +70 °C
- Storage Temperature: −40 °C to +85 °C
- Supply Voltage: 24 V DC
- Supply Current: Max 450 mA
- Analog Input: 10 channels, 4–20 mA, HART protocol enabled
- Analog Output: 2 channels, 0–20 mA, HART capable
- Communication: HART over analog loop, Ethernet to Mark VIe controller
- Mounting: Plug-in I/O pack on Mark VIe terminal board
- Certification: CE, EMC for power plant environments
- Protection Class: IP20 inside control cabinet
- Replacement Part: IS220PHRAH1B is the updated replacement version
- Supports HART protocol for smart 4–20 mA field instruments
- 10 analog input channels for process measurement signals
- 2 analog output channels for modulating control valves
- Reads HART diagnostic data, device tags, and status from transmitters
- Galvanic isolation between field loops and internal control circuit
- Built-in channel fault detection, open circuit, and short circuit alarm
- Seamless integration with Mark VIe turbine controller over Ethernet
- Hot-swap capable for online maintenance in qualified TMR systems
- LED status indicators for channel and module health
- High noise immunity for power station and heavy industrial environments
- Critical spare for gas turbine, steam turbine, and combined cycle plant retrofit
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