Product Overview

The Emerson KJ2201X1-JA1, also identified by part number 12P3323X022, is a high-integrity connection interface designed specifically for the DeltaV SIS™ (Safety Instrumented System). This Redundant SLS Terminal Block acts as the critical physical interface for Smart Logic Solvers (SLS), enabling the secure landing of field wiring while supporting a redundant hardware architecture. It is engineered to ensure that safety-critical loops—such as emergency shutdowns and fire and gas monitoring—remain operational even during a single-point connection failure.

By providing a robust mechanical and electrical interface, the KJ2201X1-JA1 facilitates the high-availability requirements of SIL 3 safety functions. While the manufacturer officially transitioned this model to a legacy status in late 2018, it remains a vital requirement for plants maintaining the safety integrity of their existing DeltaV SIS infrastructure.

Technical Characteristics and Design

• Dual-Channel Redundancy: Specifically designed to support redundant SLS module pairs, ensuring continuous signal path availability for safety instrumented functions.

• Current Capacity: Engineered to safely manage electrical loads up to 2 Amperes, making it compatible with a diverse range of high-demand field sensors and final control elements.

• Rugged Construction: Built from industrial-grade materials to provide long-term durability in high-vibration and thermally volatile environments.

• Standardized Protection: Features an IP20-rated enclosure, providing essential protection against solid objects and ensuring safety during manual inspections or maintenance.

• Simplified Field Wiring: Utilizes a clear terminal labeling system and a user-friendly connection mechanism to reduce the risk of cross-wiring and speed up commissioning times.

• Safety Compliance: Fully CE certified and engineered to meet the stringent global safety standards required for modern Distributed Control Systems (DCS).

Technical Specifications

• Manufacturer: Emerson Process Management

• Model Number: KJ2201X1-JA1

• Part Number: 12P3323X022

• Product Series: DeltaV SIS™

• Module Type: Redundant SLS Terminal Block

• Max Current Rating: 2.0 Amps

• Environmental Rating: IP20

• Dimensions: 16.6 x 8.8 x 5.2 cm

• Net Weight: 0.28 kg

• Country of Origin: USA

• HS Code: 8537101190

Industrial Application Areas

• Safety Instrumented Systems (SIS): Providing reliable termination for emergency shutdown (ESD) and burner management systems (BMS).

• Petrochemical Processing: Managing high-availability loops in hazardous area processing units.

• Power Utilities: Termination for critical interlock and protection circuits in turbine and boiler controls.

• Offshore Platforms: Durable I/O connection in space-constrained, high-vibration environments.