Emerson KJ2221X1-BA1 Safety Isolation Repeater Module for DeltaV Systems
Engineered for mission-critical applications, the Emerson KJ2221X1-BA1 safety isolation repeater module ensures reliable data transmission and enhanced system integrity in DeltaV process control environments. This compact module combines advanced galvanic isolation technology with seamless compatibility for industrial automation systems requiring precision safety protocols.


Key Features
- Galvanic Isolation Technology – Eliminates ground loops and protects connected equipment with 24VDC-powered isolation
- DeltaV System Compatibility – Direct integration with Emerson’s distributed control systems for seamless operation
- High-Performance Specifications – 300mA per channel capacity and wide temperature tolerance (-20°C to +55°C operating)
- Rugged Industrial Design – Robust 0.8kg housing with IP65-rated protection for harsh manufacturing environments
- Diagnostic Capabilities – Real-time status monitoring and fault detection for reduced maintenance downtime
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand/Model | Emerson KJ2221X1-BA1 |
| Power Requirements | 24 VDC, max. 300 mA |
| Dimensions | 120mm x 100mm x 70mm |
| Operating Temp. | -20°C to +55°C |
| Communication | Digital signal repeater for DeltaV protocols |
Application Fields
Designed for critical process control applications across multiple industries including:
- Chemical and petrochemical plant automation
- Power generation and energy management systems
- Manufacturing production line control
- Oil & gas processing facilities
- Pharmaceutical and food processing plants







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