Product Overview

The Emerson 1X00024H01 (Model WH1-2FF) is a high-integrity power supply module specifically engineered for the DeltaV SIS™ (Safety Instrumented System). This critical hardware component provides the regulated, low-noise DC power required to drive safety logic solvers and high-demand I/O subsystems. Designed with the stringent requirements of process safety in mind, the WH1-2FF ensures that power delivery is consistent and protected against voltage fluctuations, which is vital for maintaining the "fail-safe" state of safety instrumented functions. Its robust architecture is optimized for high-availability environments where power interruptions could lead to unscheduled system trips or hazardous process conditions.

Key Technical Characteristics

• System Series: DeltaV SIS™ / Ovation Legacy Integration

• Module Type: System DC Power Supply Unit

• Input Voltage: Optimized for industrial DC distribution bus standards

• Redundancy: Fully supports redundant power configurations to eliminate single points of failure

• Diagnostic Features: Onboard health monitoring for voltage regulation and thermal protection

• Form Factor: Compact modular design for high-density DIN-rail or carrier mounting

• Construction: Industrial-grade housing resistant to electromagnetic interference (EMI)

• Physical Weight: 0.9 kg

• Dimensions: 6.0 cm x 12.5 cm x 6.3 cm

• Reliability: High Mean Time Between Failure (MTBF) rating for safety-critical service

Operational Use Cases

The 1X00024H01 WH1-2FF module is primarily deployed in safety-critical sectors such as Oil and Gas refining, Petrochemical production, and Power Generation. It serves as the primary power source for logic solvers managing Emergency Shutdown (ESD) systems, Fire and Gas (F&G) detection networks, and Burner Management Systems (BMS). Because it is rated for use within the DeltaV SIS architecture, it is frequently used in SIL 2 and SIL 3 rated loops where power integrity is a prerequisite for safety certification. Its seamless integration with Emerson DCS platforms allows for real-time power health status to be reported directly to the operator workstation, enabling proactive maintenance and rapid fault isolation.