Product Introduction
The Yokogawa ATT4S-00 Pressure Clamp Terminal Block is a precision-engineered connection component designed to provide secure, vibration-resistant wiring in industrial control and instrumentation systems. Built for seamless integration with Yokogawa I/O modules and terminal assemblies, it ensures stable signal transmission and simplified field wiring.
Utilizing pressure clamp technology, this terminal block eliminates the need for screw tightening, enabling faster installation while maintaining consistent contact quality. It is particularly suitable for environments where reliability, maintenance efficiency, and wiring integrity are critical.
Technical Specifications
| Parameter | Specification |
|---|
| Model | ATT4S-00 |
| Module Type | Pressure Clamp Terminal Block |
| Connection Type | Spring/pressure clamp connection |
| Number of Terminals | 4 points |
| Rated Voltage | Up to 300 V (typical industrial rating) |
| Rated Current | Up to 10 A (application dependent) |
| Wire Size Range | 0.2 – 2.5 mm² |
| Contact Material | Copper alloy with plating |
| Insulation Material | Flame-retardant engineering plastic |
| Mounting Type | DIN rail / system terminal base |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -20°C to +85°C |
| Dimensions (H×W×D) | Approx. 60 × 6 × 40 mm |
| Weight | Approx. 0.02–0.05 kg |
Industrial Applications
The ATT4S-00 is widely used in control cabinets and field wiring applications where secure and maintenance-friendly connections are required:
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Distributed control systems (DCS) wiring interfaces
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PLC and I/O module terminal connections
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Instrumentation signal wiring (sensors, transmitters)
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Power and signal distribution panels
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Process automation and manufacturing systems
Its compact size and reliable clamping mechanism make it ideal for high-density wiring environments.
Technical FAQs
1. What is the main function of the ATT4S-00?
It provides secure electrical connections between field wiring and control system modules.
2. What type of connection does it use?
It uses a pressure clamp (spring clamp) connection mechanism.
3. How many terminals does it have?
It has 4 connection points.
4. What wire sizes are supported?
Typically 0.2 mm² to 2.5 mm².
5. Does it require screws for wiring?
No, it uses a tool-assisted spring clamp system instead of screw terminals.
6. Is it suitable for vibration environments?
Yes, the pressure clamp ensures stable connections under vibration.
7. What is the rated current capacity?
Up to approximately 10 A depending on application conditions.
8. How is it mounted?
It is installed on DIN rails or compatible terminal bases.
9. What materials are used?
Copper alloy contacts and flame-retardant insulation materials.
10. Why is it preferred over screw terminals?
Because it offers faster installation, consistent contact force, and reduced maintenance requirements.
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