EMERSON CE4003S2B6

The EMERSON CE4003S2B6 is a high-performance redundant power supply module designed for the Emerson DeltaV™ distributed control system (DCS). It provides reliable, fault-tolerant 24 VDC power to DeltaV I/O cards, terminal blocks, and associated field devices within S-series I/O assemblies. Engineered for continuous operation in mission-critical process environments, the CE4003S2B6 supports hot-swap capability, intelligent diagnostics, and seamless integration with Emerson’s PlantWeb® digital plant architecture.

This power supply is commonly deployed in oil & gas, chemical, pharmaceutical, and power generation facilities where uninterrupted control system availability is non-negotiable.

Application Scenarios

At a large ethylene cracker in Southeast Asia,a single-point power failure in a legacy DCS caused a$2.3M production loss during an unscheduled shutdown.During the subsequent DeltaV upgrade,engineers specified the EMERSON CE4003S2B6 redundant power supply across all 18 I/O cabinets.Six months later,when a primary power feed failed due to a lightning strike,the CE4003S2B6 automatically switched to the secondary source in<10 ms—keeping all analog and digital I/O live.Operators didn’t even notice the event.“The CE4003S2B6 turned a potential catastrophe into a footnote in our maintenance log,”said the site automation lead.

Parameter

Main Parameters Value/Description

Product Model EMERSON CE4003S2B6

Manufacturer Emerson Automation Solutions(formerly Fisher-Rosemount)

Product Category Redundant 24 VDC Power Supply for DeltaV S-Series I/O

Output Voltage 24 VDC±2%

Max Output Current 6 A per channel(dual-channel redundant design)

Input Voltage 85–264 VAC,47–63 Hz(universal input)

Redundancy Mode Active/standby with automatic failover

Hot-Swap Support Yes—modules can be replaced without powering down the I/O chassis

Diagnostics LED indicators+DeltaV-native status reporting(overload,undervoltage,fan fault,redundancy loss)

Efficiency>88%at full load

Operating Temperature 0°C to+60°C

Mounting Integrated into DeltaV S-series I/O carrier(e.g.,with terminal blocks like STI02)

Certifications CE,UL,cUL,ATEX,IECEx(for use in hazardous areas when installed per guidelines)

Technical Principles and Innovative Values

Innovation Point 1:True N+1 Redundancy with Load Sharing Monitoring

The CE4003S2B6 continuously monitors current draw on both power paths.If one supply degrades or fails,it instantly transfers full load to the backup while alerting DeltaV—ensuring no disruption to 4–20 mA loops or digital interlocks.

Innovation Point 2:DeltaV-Native Diagnostics Integration

Unlike generic power supplies,the CE4003S2B6 reports detailed health data directly into DeltaV Operate and AMS Device Manager.Engineers can view real-time voltage,current,temperature,and redundancy status from the control room—enabling predictive maintenance.

Innovation Point 3:Optimized Thermal Design for Dense I/O Cabinets

Integrated thermal management(including optional fan modules in high-ambient versions)prevents overheating in tightly packed I/O marshalling cabinets—common in offshore platforms and skid-mounted systems.

Innovation Point 4:Seamless Compatibility Across DeltaV Generations

The CE4003S2B6 works identically in DeltaV v13 through v15+systems,supporting both legacy M-series and modern S-series I/O—simplifying brownfield upgrades and spares management.

Application Cases and Industry Value

Pharmaceutical Facility(Switzerland):

In a GMP-compliant bioreactor suite,the CE4003S2B6 ensured 24/7 power to pH,DO,and temperature transmitters.During a facility-wide brownout,the redundant supply maintained signal integrity long enough for controlled batch hold—saving a$1.8M drug batch.

Offshore Gas Platform(Gulf of Mexico):

With limited space and high vibration,the platform used CE4003S2B6 units in compact I/O pods.Over three years,zero power-related trips occurred,and remote diagnostics reduced technician visits by 60%.

Installation,Maintenance,and Full-Cycle Support

Installation of the CE4003S2B6 is straightforward:it slides into the designated slot on a DeltaV S-series I/O carrier and connects to dual AC feeds.Field wiring is not required—the module draws power from the backplane and distributes 24VDC to mounted I/O cards.

Maintenance is minimal but highly effective:

Hot-swap:Failed units are replaced in minutes without shutting down the process.

Predictive alerts:DeltaV alarms trigger before voltage drift causes I/O errors.

No calibration:Factory-set output ensures plug-and-play reliability.

We supply only genuine,factory-new EMERSON CE4003S2B6 modules,each tested for:

Output stability under 0–100%load steps

Redundancy switchover time(<10 ms)

Communication with DeltaV I/O bus

Our support includes:

Compatibility verification with your DeltaV version

Spares planning and lifecycle management

24/7 technical assistance from certified DeltaV engineers

✅Note:The CE4003S2B6 is part of Emerson’s“Power Reliability Layer”—a foundational element in achieving>99.99%system availability in modern DeltaV architectures.

Contact us for rapid delivery,technical consultation,or integration support.Whether you’re commissioning a new plant,upgrading legacy I/O,or securing critical spares,the EMERSON CE4003S2B6 delivers the power integrity your DeltaV system depends on.