Description

The EMERSON KJ2005X1-MQ1(also referenced as VE3008,CE3008,with Emerson part number 12P6381X022)is a high-integrity,redundant-capable 24VDC power supply module engineered for Emerson’s DeltaV™M-Series and DeltaV SIS(Safety Instrumented System)platforms.Designed to deliver stable,clean power to controllers,I/O modules,and safety logic solvers,it supports N+1 redundancy,hot-swap replacement,and functional safety compliance up to SIL 3 per IEC 61508.

As a cornerstone of reliable automation infrastructure,the KJ2005X1-MQ1 ensures continuous operation in the most demanding process environments—where power failure equates to safety risk or production loss.

Application Scenarios

At a North Sea offshore gas platform,a lightning-induced surge knocked out one of two primary power feeds to the control room.The redundant pair of EMERSON KJ2005X1-MQ1 modules instantly redistributed the load,maintaining full power to the DeltaV SIS system that governed emergency shutdown valves.Within seconds,operators confirmed all safety interlocks remained active—no trip,no gas release.Post-event analysis showed the KJ2005X1-MQ1’s dual-input design and<1 ms switchover prevented any voltage dip to downstream SIS logic solvers.This silent resilience averted a potential environmental incident and regulatory shutdown.

Parameter

Main Parameters Value/Description

Product Model KJ2005X1-MQ1

Alternate IDs VE3008,CE3008

Emerson Part Number 12P6381X022

Manufacturer EMERSON

Product Category Redundant AC/DC Power Supply Module for DeltaV DCS&SIS

Output Voltage 24 VDC±2%(regulated)

Rated Output Current 10 A continuous

Peak Current 12 A for 5 seconds

Total Output Power 240 W

Input Voltage Range 85–264 VAC(47–63 Hz)or 100–300 VDC

Redundancy Support N+1 parallel operation with active current sharing

Hot-Swap Capability Yes–field-replaceable without system power-down

Protection Features Overvoltage(OVP),overcurrent(OCP),short-circuit(SCP),overtemperature(OTP)

Safety Certification IEC 61508 SIL 3(when used in certified DeltaV SIS architecture)

Operating Temperature 0°C to+60°C(derating above 50°C)

Status Indicators Green(Power OK),Red(Fault),Yellow(Redundancy Active)LEDs

Installation Snap-in to DeltaV M-Series or SIS power chassis(e.g.,KJ2005X1-BA1)

Certifications CE,UL 61010-1,CSA C22.2 No.61010,IEC 61326(EMC)

Technical Principles and Innovative Values

Innovation Point 1:SIL 3 Functional Safety by Design

The KJ2005X1-MQ1 incorporates dual-redundant internal power stages,watchdog circuits,and fail-safe output disable mechanisms.When deployed in a DeltaV SIS system,it contributes directly to achieving SIL 3 integrity—validated by TÜV Rheinland certification.

Innovation Point 2:True Active Current Sharing for Load Balance

Unlike diode-based redundancy,the KJ2005X1-MQ1 uses precision analog control to ensure all units in an N+1 set share load within±2%.This prevents thermal runaway and extends service life in 24/7 operations.

Innovation Point 3:Sub-50 mV Ripple for Noise-Sensitive Logic

With output ripple<50 mVpp under full load,the KJ2005X1-MQ1 delivers ultra-clean power to microprocessor-based controllers and HART-enabled I/O—eliminating communication errors or false trips.

Innovation Point 4:Integrated Diagnostics for Proactive Maintenance

The tri-color LED system provides instant visual health status.Combined with DeltaV Diagnostics,it enables predictive alerts for aging capacitors or rising internal resistance—before failure occurs.

Application Cases and Industry Value

In a U.S.ethylene cracker facility,the EMERSON KJ2005X1-MQ1 powers both the basic process control system(BPCS)and the independent SIS layer.During a furnace tube rupture simulation,the SIS triggered emergency quenching within 95 ms.Post-test telemetry confirmed the KJ2005X1-MQ1 maintained 23.98 VDC throughout the event—validating its role in life-critical response.OSHA auditors later highlighted the power system’s reliability as a best practice.

Similarly,a pharmaceutical plant in Ireland upgraded its legacy power supplies to KJ2005X1-MQ1 units ahead of an FDA inspection.The hot-swap capability allowed them to replace aging PSUs during live GMP batch runs—zero downtime,full data integrity.The modular design also simplified their 21 CFR Part 11 compliance documentation.

Related Product Combination Solutions

KJ2005X1-BA1:Dedicated power chassis that hosts up to three KJ2005X1-MQ1 modules for N+1 redundancy.

KJ4001X1-M7:DeltaV SIS controller that relies on clean,redundant power from the KJ2005X1-MQ1 for SIL 3 execution.

KJ4001X1-NB1:Redundant controller baseplate often powered by the same KJ2005X1-MQ1-fed bus.

12P6381X021:Previous revision;12P6381X022 includes improved thermal management and connector retention.

DeltaV SIS Logic Solver:Safety application layer dependent on the stability of the KJ2005X1-MQ1’s output.

KJ3001X1-BA1:CHARM I/O carrier that shares the same 24VDC power domain—benefiting from low-noise output.

Emerson AMS Device Manager:Leverages stable power from KJ2005X1-MQ1 to enable reliable HART communication.

KJ2005X1-MR1:Redundant fuse block assembly designed to protect KJ2005X1-MQ1 outputs in hazardous areas.

Installation,Maintenance,and Full-Cycle Support

Installing the EMERSON KJ2005X1-MQ1 requires no tools:align it with the guide rails of a compatible DeltaV power chassis,push firmly until the latch engages,and connect dual AC inputs if redundancy is configured.The unit powers up automatically—no DIP switches or software setup needed.

For maintenance,the hot-swap design allows replacement during live operation.Best practice includes:

Verifying redundancy status via the yellow“Redundancy Active”LED before removal

Using ESD-safe handling procedures

Confirming post-installation green“Power OK”status

We perform rigorous validation on every KJ2005X1-MQ1,including:

Full-load burn-in at 60°C for 48 hours

Redundancy switchover testing under dynamic load

Ripple and noise measurement(<50 mVpp confirmed)

Compatibility verification with DeltaV v6.x through v9.x firmware

Each unit ships with a test report,12-month warranty,and global technical support.Strategic inventory in the Americas,EMEA,and APAC ensures rapid delivery for both capital projects and emergency spares.

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