Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Model | G4AI |
| Ordering Number | 1KHL015623R0001 |
| Product Type | System interface / signal-processing module |
| Associated System | ABB ETL |
| Primary Function | Signal interface and processing |
| Application Area | Power-system communication / protection equipment |
| Hardware Architecture | System-specific ABB hardware |
| Analog Input Channels | Not reliably confirmed |
| Input Signal Range | Not reliably confirmed |
| Output Signal | System-dependent |
| Communication Interface | System-dependent |
| Supply Voltage | Verify from applicable ABB ETL documentation |
| Mounting | System/rack specific |
| Firmware | System-dependent |
| Operating Temperature | Verify from equipment documentation |
| Replacement Requirement | Exact part number and hardware revision should be matched |
Product Introduction
The ABB G4AI 1KHL015623R0001 is a specialized module associated with ABB’s legacy ETL power-system equipment. A technical reference specifically identifies 1KHL015623R0001 as the G4AI module, while other records associate the same ordering number with ABB power-system hardware.
A significant procurement issue is the inconsistent terminology used by commercial listings. Several sources describe G4AI as a generic analog input module and publish unsupported channel counts, signal ranges, isolation ratings, and temperature specifications. Those claims should not be treated as confirmed specifications for the exact ABB part.
1KHL015107R0001 P4LR
Application Scenarios & Field Pitfalls — Engineer’s Perspective
The G4AI 1KHL015623R0001 should be approached as a system-specific ABB ETL interface module, particularly where legacy power-system communication, protection, or signaling equipment remains in service. It should not be selected as a generic analog input replacement simply because some reseller catalogs use that description. The ETL association is supported by technical references, and the broader 1KHL product family contains specialized ABB power-system modules.
Field checks before replacement:
- Match the exact ordering number: Specify 1KHL015623R0001, not just G4AI.
- Confirm the parent equipment: Identify the exact ABB ETL cabinet, rack, or communication/protection assembly.
- Do not assume generic analog-input characteristics: Channel count, 4–20 mA/0–10 V capability, isolation, and resolution require confirmation from the equipment documentation.
- Check neighboring modules: Record the module position and adjacent hardware before removal.
- Compare PCB revision and connectors: Legacy ABB boards with similar mechanical formats may have different electrical functions.
- Preserve configuration data: If the module participates in a configured protection or communication system, retain the existing settings before replacement.
- Test the complete signal chain: After installation, verify source signals, module diagnostics, downstream communication, and system alarms.
Related Products
- ABB P4LR 1KHL015107R0001 — Related 1KHL-series ETL hardware identified as an RX receiving filter; functionally different from .
- ABB AFO4LE 1KHL015545R0001 — Related ABB power-system interface module used in the same broader equipment family.
- ABB P7LC 1KHL015000R0001 — Related control-system hardware in the 1KHL family.
- ABB P4LS 1KAL015227R0001 — Related legacy ABB power-system module with a different system function.
- ABB B4LE 1KHL015045P0001 — Another 1KHL-family module; verify the complete ordering code before considering substitution.
- ABB ETL System Hardware — Legacy ABB power-system communication/interface equipment where specialized modules such as may be installed.
