Product Introduction
The Yokogawa ATT4S-10 Pressure Clamp Terminal Block is a high-density field wiring solution engineered for seamless integration with Yokogawa CENTUM VP distributed control systems. Designed to connect analog I/O modules with field instruments, it ensures stable signal transmission while simplifying installation and maintenance.
Featuring a screwless pressure clamp mechanism and built-in surge protection, this module enhances both wiring efficiency and system protection—making it an essential interface component in modern process automation environments.
Technical Specifications
| Parameter | Specification |
|---|
| Model | ATT4S-10 |
| Module Type | Pressure Clamp Terminal Block |
| Channel Capacity | 16 channels |
| Connection Type | Spring/pressure clamp (screwless) |
| Rated Voltage | 24 V DC |
| Transient Voltage | Up to 300 V AC |
| Supported Signals | Analog signals (mV, thermocouple, etc.) |
| Surge Protection | Built-in surge absorber |
| Material | PA66 flame-retardant plastic |
| Compatible Systems | Yokogawa CENTUM VP |
| Mounting Type | DIN rail / panel-mounted |
| Operating Temperature | 0°C to +55°C |
| Storage Temperature | -20°C to +75°C |
| Dimensions (H×W×D) | 114 × 32.6 × 60.5 mm |
| Weight | Approx. 0.2 kg |
| Standards | EMC EN 61000-6-2 compliant |
Industrial Applications
The ATT4S-10 is widely used in industrial automation systems requiring reliable analog signal wiring and protection:
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Oil & gas instrumentation systems
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Petrochemical and chemical process control
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Power generation monitoring systems
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Temperature and pressure signal wiring (thermocouples, mV signals)
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Distributed control system (DCS) cabinets
Its 16-channel design makes it ideal for high-density signal integration in control panels.
Technical FAQs
1. What is the main function of the ATT4S-10?
It connects field devices to Yokogawa analog I/O modules while ensuring stable signal transmission.
2. How many channels does it support?
It supports 16 analog signal channels.
3. What type of connection does it use?
A screwless pressure clamp (spring clamp) mechanism.
4. Does it include surge protection?
Yes, it has a built-in surge absorber to protect I/O modules.
5. What systems is it compatible with?
It is designed for Yokogawa CENTUM VP systems.
6. What types of signals can it handle?
Analog signals such as thermocouples and millivolt inputs.
7. What is the rated voltage?
24 V DC, with transient protection up to 300 V AC.
8. Is it suitable for vibration environments?
Yes, the clamp design ensures stable connections under vibration.
9. How is it installed?
It can be mounted on DIN rails or integrated into control panels.
10. Why is it preferred over screw terminals?
It offers faster installation, consistent contact force, and reduced maintenance.
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