Product Description
The Yokogawa STD4A-00 S1 acts as a highly reliable signal termination interface designed to connect field wiring directly to system I/O modules. This pressure clamp terminal block simplifies industrial field installations by providing tool-free wire terminations that withstand severe operational stress, ensuring continuous electrical conductivity in production-critical environments.
Technical Specifications
The following table details the mechanical parameters, operating criteria, and logistical specifications for the STD4A-00 S1 termination block.
| Parameter | Specifications |
| Brand | Yokogawa |
| Model Number | STD4A-00 S1 |
| Component Type | Pressure Clamp Terminal Block |
| Control System Platform | Distributed Control System (DCS) |
| Voltage Scope | 24V DC to 60V DC |
| Rated Current capacity | 4 A Maximum |
| Max Contact Resistance | Less than or equal to 10 mΩ |
| Isolation Voltage | 500V AC Protection |
| Operating Temperature Range | -40°C to +85°C |
| Physical Dimensions | 3.3 cm x 10.7 cm x 13.0 cm |
| Net Weight | 0.3 kg |
| Harmonized Tariff Code (HS Code) | 8537101190 |
| Country of Manufacture | Japan |
| Availability Status | Active / Current |
| Minimum Order Quantity | 1 Unit |
Key Technical Characteristics
- Advanced Pressure Clamp Design: The spring-loaded pressure clamp technology enables users to perform rapid, secure conductor terminations, which eliminates loosening caused by thermal expansion or mechanical vibration.
- Low Signal Attenuation: The terminal block maintains a contact resistance under 10 mΩ, which minimizes signal loss across the interface and guarantees precise data loop transmission.
- Rugged Circuit Isolation: Internal component engineering offers electrical isolation up to 500V AC, protecting sensitive control room electronics against ground loops and stray field voltage surges.
- Extended Temperature Performance: The industrial-grade housing and contacts operate efficiently across an extreme thermal envelope, preventing material degradation in harsh processing environments.
Application and System Integration
Industrial plants deploy the STD4A-00 S1 within centralized control cabinets to bridge field-mounted instruments and automation hardware components. Because this module integrates flawlessly with standard Yokogawa I/O racks and Distributed Control Systems, engineering teams utilize it extensively across upstream oil and gas operations, automated chemical processing plants, thermal power stations, and municipal water management systems. This component secures crucial signal pathways, preventing localized electrical failures from escalating into full system downtime.
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