8922-RB-IS

8922-RB-IS is a product code for a Railbus signal isolator. It’s typically used in industrial automation and control systems.

What it does:
Provides galvanic isolation: Separates two electrical circuits, preventing current flow between them. This is crucial for safety and to protect equipment from voltage spikes.
Used in Railbus systems: Specifically designed for use in Railbus networks, a type of fieldbus communication system often used in hazardous environments.
Protects IS field wiring modules: Isolates the intrinsically safe (IS) field wiring modules from the rest of the system.

Emerson: Under their PAC8000 product line.
MTL Instruments: Now part of Eaton.

Key Features:
Prevents fault-voltage invasions
Compact size
Easy to install