Features:
- Complete GE order-specific part number
- Used within an application-defined EX2100 excitation configuration
- Requires renewal-parts and requisition verification
RE421REPAH1APR4 must be identified from the description assigned in the original system renewal-parts list rather than from a shortened family label.
The associated EX2100 platform controls generator field excitation and can use different control and power-conversion redundancy arrangements selected for the original application.
Quotation and replacement review should compare the exciter model, requisition, nameplate, assembly description, bridge arrangement, and connected equipment before acceptance.
The GE RE421REPAH1APR4 EX2100 Excitation Control Assembly is listed as Active / Available from OEM under the current evidence rule. Apter Power can assist with document matching.
GE RE421REPAH1APR4 EX2100 Excitation Control Assembly Manuals, Datasheets, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
GE RE421REPAH1APR4 EX2100 Excitation Control Assembly Specs
General
- ManufacturerGE
- ModelRE421REPAH1APR4
- ConditionNew Original
- Product FamilyEX2100 Excitation Control
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
System-level operating context
- Function: EX2100 produces generator field current to regulate terminal voltage or reactive volt-amperes.
- Control options: The original system may use simplex or redundant control.
- Bridge options: Power conversion may use single, parallel, warm-backup, or redundant bridge arrangements.
- Configuration: The installed arrangement is defined by the project requisition and system documentation.
Renewal-parts requirements
- Part number: Use every character of RE421REPAH1APR4 when requesting the assembly.
- Description: Match the part name and description in the GE renewal-parts list.
- Exciter data: Record the exciter model shown on the system nameplate.
- Requisition: Provide the GE requisition number when requesting identification support.
Pre-order verification points
- Architecture: Confirm the control and power-conversion redundancy arrangement.
- Assembly scope: Check the documented components included in the order-specific assembly.
- Connections: Compare terminals, cabling, cooling, and mounting with the project drawings.
- Evidence: Do not substitute a generic relay, PLC, or neighboring GE order code.