Product Description
Product Overview
The ABB HESG324389 HESG324426R0001 REX010 is an Earth Fault Protection Unit designed for integration into ABB’s industrial control systems, likely within the Advant OCS (Open Control System) or related platforms. Manufactured by ABB, this module provides protection against earth faults in electrical systems, such as generator stator windings, by detecting and responding to ground faults with high reliability. It is widely used in applications like power generation, oil & gas, and heavy industry, where electrical safety and system uptime are critical. The part numbers “HESG324389” and “HESG324426R0001” are catalog identifiers, while “REX010” denotes the specific product type within ABB’s protection relay family.
Technical Specifications
The HESG324389 HESG324426R0001 REX010 has the following specifications based on available supplier data and typical ABB earth fault protection units:
| Item | Specification |
|---|---|
| Model/Part Number | HESG324389 HESG324426R0001 REX010 |
| Manufacturer | ABB |
| Description | Earth Fault Protection Unit |
| Series | REX Protection (Advant OCS compatible) |
| Input Voltage | 36-312 V DC |
| Operating Voltage | 82-312 V DC |
| Frequency | 50 Hz |
| Insulation Voltage | 3200 V DC (input/output) |
| Operating Temperature | 0°C to 55°C (32°F to 131°F) |
| Weight | Approximately 7.35 kg (16.2 lbs) |
Additional Details
The HESG324389 HESG324426R0001 REX010 includes the following additional information based on its standard use and documentation:
| Category | Details |
|---|---|
| Function | Detects and protects against earth faults in electrical systems |
| Mounting | Panel-mounted or rack-integrated |
| Connectivity | Terminal connections for field wiring |
| Features | Pulse voltage injection, fault diagnostics, high insulation |
| Certifications | Designed to EN/IEC 255 standards |
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