Yokogawa ATT4S-00 Pressure Clamp Terminal Block

The Yokogawa ATT4S-00 Pressure Clamp Terminal Block is a high-performance electrical connection solution designed for industrial automation and process control applications. It is specifically engineered to provide stable, secure, and reliable connections for sensors such as Resistance Temperature Detectors (RTDs) and potentiometers (POTs). The terminal block’s pressure clamp mechanism ensures consistent contact force, reducing the risk of loose connections and signal loss, even in environments with vibration or thermal cycling.

This model is particularly suitable for integration into Distributed Control Systems (DCS), Programmable Logic Controllers (PLC), and instrumentation panels. Its compact design allows high-density wiring in control cabinets, while the flame-retardant housing and corrosion-resistant contacts guarantee safety and long-term reliability. The ATT4S-00 combines robust mechanical and electrical characteristics to maintain signal integrity under demanding industrial conditions.

Product Specifications

Product Applications

• Distributed Control Systems: Provides secure connections for RTD and POT sensor inputs in DCS networks.

• PLC Panels: Enables stable wiring for measurement devices with minimal maintenance.

• Process Control Cabinets: Supports high-density signal wiring in compact panel layouts.

• Industrial Equipment: Offers reliable electrical connections for machinery exposed to vibration.

• Instrumentation Systems: Ensures accurate signal transfer for temperature, pressure, and other process measurements.

• Energy and Utility Systems: Maintains measurement accuracy for monitoring and automation applications.

Product Advantages

• Stable signal integrity through the pressure clamp connection mechanism.

• Tool-free wiring simplifies installation and reduces human error.

• Compact design supports high-density wiring and efficient panel space utilization.

• Vibration-resistant design ensures consistent contact under mechanical stress.

• Flame-retardant housing and corrosion-resistant contacts enhance safety and durability.

• Compliant with CE, RoHS, and UL standards, suitable for global industrial use.

FAQ

1. What is the primary purpose of the ATT4S-00 terminal block?

   It provides stable connections for RTD and POT sensors in industrial automation and control systems.

2. Which sensors are compatible with this terminal block?

   Resistance Temperature Detectors (RTDs) and potentiometers (POTs).

3. Can it handle both AC and DC circuits?

   Yes, it supports up to 250 V AC or DC.

4. What is the maximum current per terminal?

   Each terminal can handle up to 10 A.

5. How does the pressure clamp mechanism enhance reliability?

   It maintains constant contact force, preventing loose connections caused by vibration or thermal changes.

6. Is a special tool required for installation?

   No, the pressure clamp design allows for tool-free wiring, simplifying installation.

7. Can it be mounted on DIN rails?

   Yes, it supports both DIN rail and panel mounting.

8. How resistant is it to vibration and mechanical stress?

   The design maintains stable electrical connections even under continuous vibration.

9. What are the insulation and dielectric characteristics?

   Insulation resistance is ≥100 MΩ at 500 V DC; dielectric strength is 1500 V AC for 1 minute.

10. Which certifications does the ATT4S-00 comply with?

    CE, RoHS, and UL standards, ensuring safety and compliance with industrial regulations.