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Emerson KJ2201X1-HA1 12P3322X022 SLS Redundant Terminal Block
The Emerson DeltaV SIS KJ2201X1-HA1 (12P3322X022) is an SLS Redundant Terminal Block engineered for safety-critical distributed control system loops. Housed in a compact, rugged frame featuring ISA Class G3 corrosion protection, it provides independent dual-channel routing with dedicated 30mA and 1A circuit configurations. This module guarantees reliable data acquisition and uninterrupted fail-safe signal transfer for high-integrity industrial automation and process safety applications.
Description
Product Overview
The Emerson KJ2201X1-HA1 (part number 12P3322X022) is a safety-certified, high-performance Safety Logic Solver (SLS) Redundant Terminal Block developed for the DeltaV SIS™ process safety system architecture. Engineered for high-integrity mission-critical environments, this terminal block provides physical field-wiring landing points for redundant I/O configurations. By delivering dual-channel isolation and seamless hardware pairing, it dramatically reduces the risk of single-point loop failures, ensuring maximum process uptime and continuous machine protection across industrial automation platforms.
Advanced Capabilities and Functional Benefits
- Safety Level Switch (SLS) Redundancy: Built with a dual-channel hardware architecture that facilitates true parallel loop configuration. If one signal path or connected logic solver fails, the backup channel automatically maintains the control state without process interruption.
- Rigorous Environmental Tolerance: Rated for operations spanning from -40°C up to +70°C. It features Class G3 conformal coating compliance according to the ISA-S71.04–1985 standard, making it highly resilient against corrosive gases, airborne contaminants, moisture, and high-vibration field deployment.
- Dual-Tier Current Paths: Designed with multi-level current limitations to safely route distinct field loops. Circuits passing between terminals A and B are restricted to a low-leakage 30 mA threshold, while heavy-duty automation loops bridging terminals A and C support up to 1 A per channel.
- DeltaV SIS Integration: Designed for direct slot alignment within Emerson Distributed Control Systems (DCS). It includes clear, laser-etched schematic labels directly on the housing to minimize wiring errors during emergency hot-swaps or rapid field commissioning.
Technical Specifications
| Parameter | Specification Details |
|---|---|
| Manufacturer | Emerson |
| Product Subsystem | DeltaV SIS™ Process Safety System |
| Model Number | KJ2201X1-HA1 |
| Part Number | 12P3322X022 |
| Module Classification | SLS Redundant Terminal Block / Logic Solver Interface |
| Channel Architecture | Dual-Channel Hardware Redundancy |
| Maximum Input Power | 30 VDC |
| Current Limits (Terminals A to B) | 30 mA maximum per channel |
| Current Limits (Terminals A to C) | 1 A maximum per channel |
| Operating Temperature Range | -40°C to +70°C |
| Permissible Relative Humidity | 5% to 95%, non-condensing |
| Mechanical Shock Resistance | 10 g half-sine wave for 11 ms |
| Vibration Tolerances | 1 mm peak-to-peak (2 to 13.2 Hz); 0.7 g (13.2 to 150 Hz) |
| Airborne Contaminants Protection | ISA-S71.04–1985 Class G3 Conformal Coating |
| Physical Dimensions | 8.4 cm (H) x 9.0 cm (W) x 5.5 cm (D) |
| Net Hardware Weight | 0.18 kg (approx. 180 grams) |
| Lifecycle Status | Legacy hardware platform (Discontinued by manufacturer Dec 31, 2018) |
Industrial Applications
- Emergency Shutdown Systems (ESD): Serving as the secure field terminal interface for safety valves, trips, and critical safety interlocks.
- Petrochemical & Refining Processes: Safe signal management in hazardous areas monitoring gas levels, pressure parameters, and emergency fuel cutoff loops.
- Chemical Processing Safety Layers: Distributing redundant sensor telemetry across logic solvers to prevent thermal runaway or over-pressure events.
- Continuous Automation Infrastructure: Minimizing maintenance overhead and preventing costly plant trips in water treatment, power generation, and distributed industrial utility plants.
Additional information
| Weight | 0.18 kg |
|---|---|
| Country of Origin | USA |
| Dimension | 8.4 x 9 x 5.5 cm |
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