Description
1. Product Title
Alstom PIB101C – Power Integration Board (H-Series / ControBloc)

2. Product Overview
The PIB101C is a critical power management and distribution module manufactured by Alstom for use in their legacy and high-performance control systems, such as the ControBloc or H-Series (Alspa) platforms. It acts as the electrical heart for an I/O rack or sub-rack, ensuring that regulated power is distributed safely and consistently to all installed modules.
In industrial utility environments, the PIB101C solves the problem of power instability and noise interference. It converts and filters incoming power supplies to provide the clean, stable voltages required by sensitive microprocessors and analog-to-digital converters within the system. This module is essential for large-scale power plant control and grid management systems where the reliability of the control hardware is directly tied to the stability of the electrical grid.
3. Technical Specifications
- Brand: Alstom (Now often supported under GE Power or GE Vernova)
- Model: PIB101C
- Warranty: One Year
- Condition: 100% New & Original
- Application: Alspa H-Series / ControBloc I/O Racks
- Input Voltage: 24V DC / 48V DC (Depending on rack configuration)
- Monitoring: Integrated voltage monitoring and fault signaling
- Protection: Short-circuit and thermal overload protection
- Mounting: Backplane-integrated in 19-inch sub-racks
4. Key Features & Benefits
- High Integrity Power: The PIB101C features advanced filtering to eliminate electromagnetic interference (EMI) that can cause signal jitter in high-precision control loops.
- Fault Isolation: In the event of a downstream module failure, the PIB101C is designed to isolate the fault, preventing a single component short-circuit from bringing down the entire I/O rack.
- System Status Feedback: Includes logic to report “Power OK” signals to the main controller, allowing for automatic alarm generation if the power integrity is compromised.
- Ruggedized for Utility Use: Specifically built to meet the stringent standards of power generation facilities, withstanding the high vibrations and heat often found in turbine control rooms.
5. Application Scenarios
- Hydroelectric Power Control: The PIB101C is widely used in Alspa-controlled hydro plants to provide reliable power for turbine governor and auxiliary control systems.
- Thermal Power Plant DCS: Deployed within Alstom’s Distributed Control Systems (DCS) to manage the power requirements of high-density I/O clusters monitoring boiler and steam parameters.
- Substation Automation: Used in older Alstom grid control hardware to ensure consistent power to protection relays and communication modules.
6. Frequently Asked Questions (FAQ)
- Q: Is Alstom still the manufacturer of this part?
- A: While originally Alstom, most of these legacy power products are now serviced and supplied through GE Power (following GE’s acquisition of Alstom’s energy business).
- Q: What is the significance of the “C” in PIB101C?
- A: The “C” typically designates a specific hardware revision or a Conformal Coated version for use in harsh industrial environments with moisture or chemical exposure.
- Q: Can I swap a PIB101C while the system is running?
- A: Only if the rack is configured for dual-redundant power supplies. In a simplex (single-supply) configuration, removing the PIB101C will result in the immediate loss of all modules in that rack.
ALSTOM 3EST125-975 DCC2382A Alstom EPSD-0603 Alstom AL129A
- A: Only if the rack is configured for dual-redundant power supplies. In a simplex (single-supply) configuration, removing the PIB101C will result in the immediate loss of all modules in that rack.




