Uninterruptible Power Solution – YOKOGAWA S9400UK | Battery Pack
Where This Product Is Used
The YOKOGAWA S9400UK Battery Pack is a dedicated backup power module engineered for mission-critical distributed control system (DCS) environments. It is deployed wherever continuous process control must be maintained through power interruptions, grid instability, or planned maintenance shutdowns.
Typical deployment sites include:
- Oil & Gas Refineries – Sustains CENTUM VP/CS 3000 field control stations (FCS) during grid fluctuations, preventing unplanned process trips.
- Chemical & Petrochemical Plants – Provides ride-through power for safety-critical loops where a controller restart could trigger SIS activation.
- Power Generation Facilities – Backs up turbine and boiler control nodes, ensuring operator visibility is maintained during switchgear events.
- Pharmaceutical Manufacturing – Protects batch process controllers from data loss and recipe interruption during momentary outages.
- Pulp & Paper Mills – Keeps continuous process controllers online during utility supply transitions.
- Water & Wastewater Treatment – Maintains SCADA-linked DCS nodes through power quality events common in utility infrastructure.
Technical Specifications
| Part Number | S9400UK |
| Manufacturer | YOKOGAWA Electric Corporation |
| Module Type | Battery Pack / UPS Backup Power Unit |
| Compatible Platform | YOKOGAWA CENTUM VP, CENTUM CS 3000 |
| Form Factor | DIN-rail / rack-mount (system-integrated) |
| Gross Weight | 3,600 g (3.6 kg) |
| SKU / Order Code | S9400UK |
| Condition | New / Surplus New / Refurbished (specify on inquiry) |
| Lead Time | Contact for availability |
Note: Full electrical specifications (voltage, capacity, backup duration) are available in the YOKOGAWA S9400UK datasheet. Contact us to receive the official documentation.
Why Engineers Specify This Model
- Platform-native compatibility – Designed and validated by YOKOGAWA for seamless integration into CENTUM VP and CS 3000 power supply architectures; no third-party adaptation required.
- Zero-gap switchover – Provides instantaneous backup power, eliminating the controller restart cycle that generic UPS solutions may cause.
- Compact, system-integrated form factor – Mounts directly within the DCS cabinet, reducing external UPS footprint and cabling complexity.
- Predictable replacement cycle – Battery chemistry and capacity are matched to YOKOGAWA’s recommended maintenance intervals, simplifying lifecycle planning.
- Reduced commissioning risk – OEM part eliminates firmware compatibility concerns that arise with aftermarket alternatives.
- Audit-ready traceability – Sourced with full documentation chain, supporting IEC 61511 / IEC 62443 compliance audits.
Complete System Bill of Materials
The S9400UK is typically specified alongside the following YOKOGAWA components for a complete, redundant power architecture:
- YOKOGAWA S9400 / S9401 Power Supply Unit (primary PSU for FCS/BCV nodes)
- YOKOGAWA AFV10D / AFV30D Field Control Station
- YOKOGAWA ESB Bus Coupler Modules
- YOKOGAWA AIP588 / AIP598 I/O Power Supply
- Redundant 24 VDC distribution rail with fused terminal blocks
- Cabinet-level surge protection (per IEC 61643-11)
Contact Konmask for bundled sourcing of complete power subsystem BOMs — we can cross-reference your existing CENTUM configuration and identify compatible spares.
Compliance & Industry Standards
- IEC 61131-2 – Programmable controllers: equipment requirements and tests
- IEC 61511 – Functional safety for process industry SIS (relevant to DCS power integrity)
- IEC 62443 – Industrial cybersecurity standard (OEM parts support secure supply chain requirements)
- CE Marking – YOKOGAWA CENTUM platform carries CE conformity for EU installations
- RoHS Compliance – Confirm with YOKOGAWA datasheet for specific production batch
- ATEX / IECEx – Consult YOKOGAWA for hazardous area installation requirements
Quality Assurance & Sourcing
Konmask.com specializes in the procurement of industrial automation components from verified supply chains. Every S9400UK unit we supply undergoes the following process:
- Source verification – Parts are traced to authorized distributors, OEM surplus channels, or certified refurbishers.
- Visual & dimensional inspection – Checked against YOKOGAWA reference standards for label authenticity, connector integrity, and housing condition.
- Functional test (where applicable) – Refurbished units are bench-tested prior to dispatch.
- Documentation package – Shipment includes packing list, inspection record, and available certificates of conformity.
- Secure packaging – Anti-static packaging with shock-absorbing foam, compliant with IEC 60068-2 transport requirements.
How to Source This Part
- Submit an RFQ – Email [email protected] with your required quantity, condition preference (new / surplus / refurbished), and delivery timeline.
- Receive a quotation – We respond within 1 business day with pricing, lead time, and available stock condition details.
- Confirm & place order – Purchase via this product page or via proforma invoice for B2B/wire transfer orders.
- Dispatch & tracking – Orders are dispatched with full tracking. Express and freight options available for urgent plant requirements.
- After-sales support – Our technical team is available to assist with installation queries and compatibility verification post-delivery.
Phone / WhatsApp: +0086 19859288691
Email: [email protected]
Application-Specific FAQ
Q: Is the S9400UK compatible with both CENTUM VP and CENTUM CS 3000?
A: The S9400UK is a YOKOGAWA-designed battery pack intended for the CENTUM platform family. Please confirm your specific FCS model and power supply slot configuration with us before ordering to ensure dimensional and electrical compatibility.
Q: What is the expected backup duration provided by the S9400UK?
A: Backup duration depends on the connected load (number of I/O modules, FCS type, and ambient temperature). Refer to the YOKOGAWA S9400UK datasheet or contact our team for a load-specific calculation.
Q: Can I use a third-party battery as a replacement instead of the S9400UK?
A: YOKOGAWA does not recommend third-party battery substitutions for CENTUM power supply modules, as cell chemistry, voltage profile, and connector pinout are matched to the OEM design. Using non-OEM batteries may void system warranty and create safety risks.
Q: How do I know when the S9400UK battery needs replacement?
A: CENTUM VP/CS 3000 systems generate a battery alarm via the HIS (Human Interface Station) when battery capacity falls below threshold. YOKOGAWA also publishes recommended replacement intervals in the system maintenance manual.
Q: Do you supply S9400UK units with a warranty?
A: Yes. New and surplus-new units carry a standard Konmask supply warranty. Refurbished units carry a functional warranty. Contact us for specific warranty terms applicable to your order.
Q: Can you source multiple units for a plant-wide spare parts program?
A: Yes. Konmask supports bulk procurement for MRO and capital spares programs. Contact us with your full BOM for a consolidated quotation.
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Contact: [email protected] | +0086 19859288691






