Product Description

The STA4D-00 S2 is a high-density pressure clamp terminal block engineered for the Yokogawa Electric Corporation CENTUM VP integrated production control system. It serves as the primary physical interface for field wiring, enabling secure signal transmission between external field instruments and system I/O modules.

Designed for DIN rail or cabinet mounting, the unit utilizes a spring-type pressure clamp mechanism to ensure vibration-resistant connections and long-term electrical stability without requiring specialized crimping tools.

The “S2” suffix denotes a specific revision or manufacturing standard, ensuring compatibility with updated CENTUM hardware revisions. This terminal block is optimized for high-reliability environments where signal integrity is critical for process automation and safety systems.

Technical Specifications

Application and Compatibility

The STA4D-00 S2 is typically used with KS series interface cables (e.g., KS1 or KS2) to connect field wiring to Yokogawa AAI, AAV, or ADV series I/O modules. It supports both analog and digital signal distribution within Distributed Control System (DCS) cabinets, ensuring organized termination and simplified maintenance.

Frequently Asked Questions

What is the benefit of the pressure clamp over traditional screw terminals?
The spring-tension design maintains constant contact pressure on the conductor, reducing the risk of loose connections caused by thermal cycling or industrial vibration. This improves long-term reliability and reduces maintenance requirements.

Does this unit include the interface cable?
No. The STA4D-00 S2 includes the terminal block assembly only. Compatible KS series interface cables must be ordered separately according to the specific I/O module configuration.