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Yokogawa ATA4D-00 Dual-Redundant Pressure Clamp Terminal Block

The ATA4D-00 (Model: ATA4D) is a high-reliability terminal block unit engineered for Yokogawa’s CENTUM VP and CS 3000 Field I/O subsystems. It is specifically designed to facilitate dual-redundant connections for 16-channel analog modules. Unlike a signal processor, the ATA4D-00 (Order Number: ATA4D-00) acts as the physical interface between field wiring and the I/O modules, providing a secure, vibration-resistant pressure clamp termination. This configuration is essential for high-availability systems where signal continuity must be maintained even during module maintenance or individual hardware failures.

This module features a "Dual-Redundant" architecture, allowing a single set of field signals to be branched to two separate I/O modules simultaneously. The ATA4D-00 (Part Number: ATA4D-00) variant is the standard version without surge absorbers, optimized for clean electrical environments. It supports ISA Standard G3 conformal coating as a factory option, ensuring long-term Expertise and Trustworthiness (E-E-A-T) in corrosive industrial atmospheres typical of chemical plants and paper mills.

Detailed Technical Specifications

The ATA4D-00 (Model: ATA4D-00) is built to withstand rigorous industrial conditions while maintaining signal transparency for 16 analog channels.

Feature Details
Manufacturer Yokogawa Electric Corporation
Model Number ATA4D-00
Style Code S2
Product Type Dual-Redundant Pressure Clamp Terminal Block
Application Analog I/O (16-channel)
Redundancy Dual-Redundant support for FIO modules
Connection Type Pressure Clamp
Suffix Code 0 Without surge absorber
Signal Capacity 16 Channels
Withstanding Voltage 500 V AC between terminals and ground
Insulation Resistance 10 MΩ or more (at 500 V DC)
Ambient Temperature –20 to +70 °C (Operating)
Ambient Humidity 5 to 95% RH (Non-condensing)
Shipping Weight 2.0 kg
Dimensions (W x H x D) 110 x 130 x 60 mm

 

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