Yokogawa STA4D-00-S2 – Pressure Clamp Terminal Block | CENTUM VP / CS 3000 Field Wiring Platform
Engineering Background: The STA4D-00-S2 is a factory-engineered pressure clamp terminal block designed specifically for Yokogawa’s CENTUM VP and CS 3000 distributed control systems. It serves as the critical interface between field instrumentation cables and the DCS I/O marshalling cabinet, ensuring signal integrity in demanding process environments.
Product Positioning: Targeted at instrumentation and control engineers requiring a certified, drop-in replacement or expansion component for existing Yokogawa DCS installations. The STA4D-00-S2 eliminates the risk of third-party compatibility issues and maintains full system warranty compliance.
Complete Technical Specifications
- Part Number / SKU: STA4D-00-S2
- Manufacturer: Yokogawa Electric Corporation
- Series / Platform: CENTUM VP / CS 3000 DCS
- Component Type: Pressure Clamp Terminal Block
- Connection Method: Pressure clamp (tool-free, spring-cage clamping)
- Conductor Cross-Section: Suitable for standard instrumentation cable gauges (AWG 22–14 / 0.34–2.5 mm²)
- Rated Voltage: Per Yokogawa DCS field wiring specification
- Rated Current: Per Yokogawa DCS field wiring specification
- Mounting: DIN rail / marshalling cabinet panel mount
- Material: High-grade thermoplastic housing, tin-plated copper contacts
- Country of Origin: Japan
- Weight: ~300 g (unit with packaging)
- Compliance: Yokogawa OEM specification; CE / RoHS aligned
Proven Application Environments
- Oil & gas upstream / downstream DCS marshalling cabinets
- Petrochemical and refinery process control panels
- Power generation plant instrumentation loops
- Pharmaceutical and fine-chemical batch control systems
- Pulp, paper, and water treatment automation infrastructure
- Any CENTUM VP or CS 3000 installation requiring field wiring termination
Engineering Advantages
- Tool-free termination: Pressure clamp design reduces installation time and eliminates torque-related wiring errors.
- Vibration resistance: Spring-cage contact maintains consistent clamping force under mechanical vibration, reducing nuisance trips.
- OEM compatibility: Direct replacement for existing STA4D-series blocks; no re-engineering of marshalling layout required.
- Long service life: Yokogawa-grade materials rated for continuous industrial duty cycles.
- Signal integrity: Low-resistance contact path preserves mV-level analog signals from thermocouples and RTDs.
System Architecture & Signal Flow
In a typical CENTUM VP architecture, field instrument cables enter the marshalling cabinet and terminate at STA4D-series terminal blocks. Jumper cables then route signals to the I/O module terminal boards. The STA4D-00-S2 occupies the field-side termination position, providing a secure, labeled, and individually isolatable connection point for each field loop. This architecture supports loop isolation for maintenance without interrupting adjacent channels.
Sourcing & Quality Verification
- All units sourced through verified Yokogawa authorized distribution channels or direct OEM surplus.
- Each unit inspected for physical integrity, contact condition, and part number label accuracy prior to dispatch.
- Traceability documentation (delivery notes, OEM packing slips) available upon request for critical project procurement.
- Konmask.com maintains a zero-tolerance policy on counterfeit or grey-market components.
Procurement Process
- Confirm part number STA4D-00-S2 against your Yokogawa BOM or marshalling schedule.
- Submit quantity and delivery requirements via the quote form or email support@konmask.com.
- Receive proforma invoice with lead time and shipping options (DHL / FedEx / sea freight).
- Payment confirmed → order packed with inspection report and shipped with tracking.
- Post-delivery technical support available for installation queries.
Technical FAQ
Q: Is the STA4D-00-S2 compatible with CENTUM CS 3000 as well as CENTUM VP?
A: Yes. The STA4D series terminal blocks are used across both CENTUM CS 3000 and CENTUM VP marshalling architectures. Verify your cabinet drawing to confirm the exact block position.
Q: Can I mix STA4D-00-S2 with other STA4D suffix variants in the same rail?
A: Suffix variants denote specific configuration options (e.g., color coding, jumper provisions). Mixing is physically possible but consult your Yokogawa system documentation to ensure functional compatibility.
Q: What is the minimum order quantity?
A: No minimum order quantity. Single units and bulk project quantities are both accommodated.
Q: Do you provide a certificate of conformance?
A: Yes, upon request for orders requiring QA documentation.
Q: What is the typical lead time?
A: In-stock units ship within 1–3 business days. For larger quantities, lead time is confirmed at quotation stage.
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