Product Overview

The Emerson KJ3222X1-BA1 redundant terminal block, identified by order number 12P2532X072 and series code VE4033S2B1, is a field termination component designed for redundancy-enabled DeltaV™ M-series I/O architectures. It provides secure and organized wiring interfaces between redundant I/O cards and field devices, supporting high-availability control strategies in distributed control systems.

This terminal block is engineered to maintain continuous signal connectivity in systems where fault tolerance is critical. By supporting redundant signal paths, it helps ensure uninterrupted operation during maintenance or component failure. Although this model was discontinued at the end of 2018, it remains an essential spare for maintaining legacy DeltaV M-series installations that rely on redundant I/O configurations.

Key Technical Characteristics

• Module Function: Redundant field wiring termination

• Hardware Platform: DeltaV M-series I/O subsystem

• Redundancy Support: Dual-path signal termination for high availability

• Electrical Role: Passive connection and signal distribution

• Mechanical Design: Fixed terminal block assembly for control cabinets

• Model Number: KJ3222X1-BA1

• Order Number: 12P2532X072

• Series Identifier: VE4033S2B1

• Dimensions: 4.1 × 12.5 × 10.5 cm

• Net Weight: Approx. 0.2 kg

• Country of Origin: USA

Industrial Applications

This redundant terminal block is commonly deployed in process industries where system uptime is essential, such as oil and gas production, power generation, chemical processing, and large-scale manufacturing. It is used in DeltaV control cabinets that implement redundant I/O strategies to reduce single points of failure.

During maintenance or system upgrades, the KJ3222X1-BA1 allows field wiring to remain stable while redundant I/O components are serviced or replaced. For existing DeltaV M-series systems, it provides a direct replacement that preserves original wiring layouts and redundancy design principles.