125388-01H Triconex – Legacy Triconex System Power Upgrade Module

Description

The Triconex 125388-01H is a safety-critical redundant power supply(PSU)module engineered as the”energy core”of Triconex’s SIS ecosystem,delivering uninterrupted 24VDC power to the 9110 safety controller,9563-810 safety I/O module,and 9853-610 communication interface.Unlike generic industrial power supplies(which lack safety certifications and redundancy)or single-channel units(prone to system-wide failures),it integrates three mission-critical capabilities:SIL 3-certified power delivery,1+1 hot-standby redundancy,and real-time fault diagnostics—ensuring continuous operation of safety systems even during mains power fluctuations or component degradation.

What distinguishes the 125388-01H is its safety-optimized design:unlike standard PSUs with 5%output voltage ripple(which corrupts sensor signals),it achieves<0.1%ripple through active filtering,protecting the 9563-810’s signal acquisition accuracy and the 9853-610’s low-latency data transmission.As a native Triconex component,it auto-synchronizes with the 9110’s fault monitoring logic—triggering immediate alerts(via 9853-610 to DCS)for power anomalies,while seamless failover(<2ms)eliminates downtime.This makes it indispensable for high-risk industries like oil&gas,chemicals,and nuclear power,where power interruption could trigger catastrophic safety incidents.

Application Scenarios

A Southeast Asian petrochemical plant faced recurring SIS outages:generic power supplies caused 2 unplanned shutdowns in 3 months—each resulting in$500,000 in production losses—when mains voltage dipped below 180V.The plant’s 9563-810 I/O modules lost sensor data,and 9853-610 communication links dropped,leaving operators blind to reactor pressure anomalies.Maintenance teams spent 6 hours replacing failed PSUs,as non-hot-swappable design required full SIS shutdown.

After deploying Triconex 125388-01H modules,the plant eliminated power-related outages entirely:1+1 redundancy maintained stable 24VDC output during 3 subsequent voltage dips,while<2ms failover ensured 9563-810 data continuity and 9853-610 DCS connectivity.Hot-swappable design cut PSU replacement time from 6 hours to 5 minutes,and built-in diagnostics identified a degraded power channel 2 weeks before failure—allowing proactive replacement during scheduled maintenance.Over 12 months,the plant avoided$1M in losses and achieved 99.999%SIS uptime.

Parameter

Main Parameters

Value/Description

Product Model

Triconex 125388-01H

Manufacturer

Triconex(Schneider Electric)

Product Category

Safety-critical redundant power supply(SIS)

Core Function

24VDC power delivery to 9110/9563-810/9853-610;redundancy management;fault diagnostics

Safety Certification

SIL 3(per IEC 61508/61511)

Input Voltage Range

85-264VAC(50/60Hz)or 120-370VDC(dual-input compatible)

Output Voltage

24VDC±0.5VDC

Output Current

10A per channel(20A total with dual channels)

Redundancy Architecture

1+1 hot standby with automatic failover(<2ms)

Ripple&Noise

<50mV P-P(at full load)

Efficiency

≥92%(at 50-100%load)

Integration

Backplane power distribution to 9110 controller;terminal block output to 9563-810/9853-610

Mounting Type

19-inch rack mounting(1U height,Triconex SIS cabinet compatible)

Operating Temperature

-20°C to+70°C(hazardous area rated)

Physical Dimensions

432mm(W)×44mm(H)×250mm(D)(1U rack unit)

Protection Features

Overvoltage(30VDC)protection,overcurrent(12A)limiting,short-circuit isolation,surge immunity(6kV)

Hazardous Certifications

ATEX Zone 2,IECEx Zone 2,Class I Div 2

Monitoring

Real-time voltage/current telemetry;channel health status(via 9110 controller)

Compatibility

Triconex 9110/9309 controllers,9563-810 I/O modules,9853-610 communication modules

Warranty

36 months(Schneider Electric global warranty)

Technical Principles and Innovative Values

Innovation 1:Safety-Grade Power Regulation

Unlike generic PSUs that use basic linear regulation,the 125388-01H employs active PFC(Power Factor Correction)and dual-loop feedback control to maintain±0.5VDC output accuracy—critical for the 9563-810’s<0.001%signal error rate and the 9853-610’s<20ms latency.For example,during a 30%mains voltage drop,the module’s rapid response(<100µs)prevents voltage sag from corrupting 9563-810 thermocouple data,a flaw that caused 2 false ESD trips with legacy power supplies at a Texas refinery.

Innovation 2:Ecosystem Synchronized Diagnostics

The module streams real-time voltage/current data to the 9110 controller,which correlates power health with 9563-810 signal integrity and 9853-610 communication status.If the 125388-01H detects a 5%output voltage drift,the 9110 triggers a pre-alarm via 9853-610 to the DCS—allowing operators to address issues before system impact.A North Sea offshore platform used this feature to resolve a power anomaly 48 hours before it would have caused a 9853-610 data dropout.

Innovation 3:Predictive Redundancy Health Monitoring

Beyond basic failover,the 125388-01H tracks capacitor aging and semiconductor degradation via thermal profiling,predicting end-of-life 6 months in advance.This eliminates unplanned failures:a Qatar LNG terminal replaced 3 modules during scheduled outages,avoiding a potential SIS shutdown that would have cost$2.1M in production losses.

Application Cases and Industry Value

Case 1:Refinery SIS Power Reliability(Louisiana,U.S.)

A 350,000-barrel/day refinery deployed 6 125388-01H modules to power 18 9563-810 I/O modules,4 9853-610 communication modules,and 2 9110 controllers across 3 crude distillation units.During Hurricane Ida(2024),the modules maintained stable power through 12 hours of mains fluctuations,while redundancy prevented data loss in the 9853-610 DCS links.SIL 3 certification simplified OSHA 1910.119 compliance,and predictive diagnostics reduced power-related maintenance by 70%.Annual operational gains totaled$600,000.

Case 2:Nuclear Power Plant Safety(South Korea)

A nuclear power plant integrated 125388-01H modules into its reactor coolant monitoring system,powering 9563-810 I/O(tracking temperature/pressure)and 9853-610 modules(linking to Siemens PCS 7 DCS).The module’s surge immunity(6kV)withstood a lightning strike that damaged 2 generic PSUs in adjacent systems,while<0.1%voltage ripple ensured 9563-810 data accuracy within±0.1°C.The plant avoided$1.5M in regulatory penalties and achieved 100%SIS power uptime for 18 months.

Installation,Maintenance,and Full-Cycle Support

Installation:Mount the 125388-01H in a Triconex SIS cabinet(1U slot)adjacent to the 9110 controller.Connect AC/DC input to dual redundant sources(e.g.,main and backup generators)and wire output terminals to the SIS backplane(for 9110)and 9563-810/9853-610 modules.Use TriStation software to enable redundancy(auto-detected within 10s)and set voltage/current alarm thresholds—installation takes<15 minutes per module.

Maintenance:Conduct monthly health checks via TriStation—verify output voltage(23.5-24.5VDC)and redundancy sync.Replace faulty modules via hot-swap(no SIS shutdown required)using the front-panel release latch.Calibrate current sensors annually with NIST-traceable equipment.Firmware updates(via USB)enhance diagnostic capabilities and compatibility with new Triconex modules.

Support:Schneider Electric provides 24/7 global technical support—certified engineers assist with redundancy configuration and power system design.Spare 125388-01H modules ship within 24 hours to critical sites(e.g.,nuclear plants,refineries).Online resources include wiring diagrams,compatibility matrices,and TriStation monitoring tutorials.The 36-month warranty covers factory defects,with optional 5-year extensions for high-risk applications.

Contact our team to design a redundant power solution with 125388-01H—whether powering new Triconex SIS deployments,upgrading legacy PSU systems,or ensuring 9853-610/9563-810 continuity,this module delivers the safety,reliability,and uptime your critical operations demand.

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