Description
Model Suffix Decoder
The extensive alphanumeric configuration string HCBACB2AA1XE details the exact factory-installed hardware and pre-configured application configuration:
- H: Platform hardware revision level designation
- C: Feeder protection functionality core (REF611 dedicated baseline)
- B: Standard application configuration matrix block (pre-defined I/O mapping)
- A: Conventional $1\text{ A} / 5\text{ A}$ analog current transformer (CT) input card
- C: High-voltage universal power supply module ($110\text{–}240\text{ V AC/DC}$ nominal operating range)
- B: Specific binary I/O allocation layout (defines discrete hardware contacts)
- 2: Standard high-resolution graphical Human-Machine Interface (HMI) screen variant
- A: Rear connection hardware module interface type
- A: Default system language mapping firmware option
- 1: Standard serial communication protocol mapping configuration
- X: Reserved expansion hardware slot / baseline option code
- E: Final modification, validation, or compliance tracking code revision
Product Introduction
The ABB REF611 HCBACB2AA1XE is a specialized numerical feeder protection relay within ABB’s Relion 611 product family, engineered to deliver streamlined protection, control, measurement, and supervision for medium-voltage power distribution networks. This specific variant features an integrated high-voltage universal power module ($110\text{–}240\text{ VAC/VDC}$), rendering it perfectly compatible with utility substation environments operating off central DC battery banks. It functions as a core Intelligent Electronic Device (IED) to insulate radial infrastructure, motors, and step-down transformers from damaging overcurrent conditions, short-circuits, and earth-fault dynamics.
