Yokogawa ATT4S-10 Pressure Clamp Terminal Block

The Yokogawa ATT4S-10 Pressure Clamp Terminal Block is a high-reliability terminal solution designed for industrial automation and process control systems. It is engineered to provide secure, stable, and maintenance-free connections for measurement devices, particularly Resistance Temperature Detectors (RTDs) and potentiometers (POTs). Utilizing a precision pressure clamp mechanism, the ATT4S-10 ensures consistent contact force without the need for screws, eliminating the risk of signal interruption due to loose connections even in environments with vibration or thermal changes.

This terminal block is suitable for integration into Distributed Control Systems (DCS), Programmable Logic Controllers (PLC), and instrumentation panels, offering compact installation, high-density wiring capability, and long-term electrical reliability. Its flame-retardant housing and corrosion-resistant contacts provide enhanced safety and durability in demanding industrial applications. The ATT4S-10 ensures precise signal transmission and operational continuity across diverse industrial environments.

Product Specifications

Product Applications

• Distributed Control Systems: Reliable wiring for RTD and POT signals in DCS networks.

• PLC Panels: Secure sensor connections for analog measurement devices.

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

• Industrial Equipment: Maintains stable electrical connections under vibration and mechanical stress.

• Instrumentation Systems: Accurate signal transfer for temperature, position, and process measurements.

• Energy and Utility Systems: Enables precise measurement input for monitoring, control, and automation applications.

Product Advantages

• Pressure clamp design ensures stable, reliable electrical contact.

• Tool-free installation reduces wiring errors and labor time.

• High-density design allows efficient use of panel space.

• Resistant to vibration and mechanical stress, ensuring consistent performance.

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

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

FAQ

1. What is the main function of the ATT4S-10 terminal block?

   It provides secure connections for RTD and POT sensors, maintaining signal integrity in industrial automation systems.

2. Which types of sensors are supported?

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

3. Can the ATT4S-10 be used with both AC and DC signals?

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

4. What is the maximum current per terminal?

   Each terminal can safely carry up to 10 A.

5. How does the pressure clamp improve reliability?

   It maintains consistent contact force, preventing connection loosening due to vibration or thermal expansion.

6. Is a special tool required for installation?

   No, tool-free wiring is enabled by the pressure clamp mechanism.

7. Can it be mounted on DIN rails or panels?

   Yes, the design supports both DIN rail and panel mounting.

8. How does it perform under mechanical vibration?

   The pressure clamp ensures stable electrical connections even in vibration-prone environments.

9. What are the insulation and dielectric ratings?

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

10. Which certifications and standards does it comply with?

    CE, RoHS, and UL standards for safety, reliability, and industrial compliance.