Excellent PLC
| Company Information | ||||||||
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| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Product Introduction
The Yokogawa AMM25C Terminal Block is a precision-engineered interface component designed for secure and efficient signal termination in Yokogawa’s Distributed Control System (DCS) architectures. It serves as the essential connection interface between field wiring and input/output (I/O) modules such as the AMM series analog multiplexer modules.
This terminal block ensures stable signal transmission and reliable grounding, providing safe and organized cable management for both analog and digital signals. Constructed with industrial-grade materials, the AMM25C is built to withstand harsh process environments and deliver dependable long-term performance.
The AMM25C features a modular design with quick-release terminals for easy installation and maintenance, minimizing downtime during system integration or upgrades. Its compact structure and high-density wiring capability make it a preferred choice in control cabinets where space efficiency and reliability are critical.
Technical Specifications
| Parameter | Description |
|---|---|
| Manufacturer | Yokogawa Electric Corporation |
| Model | AMM25C |
| Product Type | Terminal Block |
| Function | Interface between I/O modules and field wiring |
| Compatible Modules | AMM21, AMM22, AMM23, and other AMM series modules |
| Connection Type | Screw-type or spring clamp (depending on configuration) |
| Number of Terminals | 32 channels (typical for analog signal wiring) |
| Terminal Marking | Individually numbered terminals for identification |
| Insulation Resistance | ≥ 100 MΩ at 500 V DC |
| Dielectric Strength | 1500 V AC for 1 minute |
| Rated Voltage | 24 V DC nominal |
| Rated Current | 2 A per channel |
| Contact Resistance | ≤ 30 mΩ |
| Wiring Type | Solid or stranded copper wire |
| Wire Size | 0.2 – 2.5 mm² (24 – 14 AWG) |
| Mounting Type | DIN rail or direct panel mount |
| Interface to Module | Multi-pin connector interface |
| Material (Body) | Flame-retardant thermoplastic (UL94-V0) |
| Color | Standard gray with Yokogawa labeling |
| Operating Temperature | 0°C to +55°C |
| Storage Temperature | -20°C to +70°C |
| Relative Humidity | 10% – 90% non-condensing |
| Protection Class | IP20 (finger-safe terminal enclosure) |
| Safety Certification | CE, RoHS, UL compliant |
| Dimensions | 45 × 97 × 103 mm |
| Weight | 0.3 kg |
| Maintenance | Tool-free disconnection for rapid servicing |
| Cooling Method | Natural air convection |
| Additional Features | Shielded wiring option, removable terminal strips |
Applications
The Yokogawa AMM25C Terminal Block is used across various industrial automation sectors for the interconnection of field instruments, sensors, and control systems. Its design provides flexibility and reliability in wiring configuration, making it ideal for use in:
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Power Generation: Signal interfacing between field sensors and control systems in turbines, boilers, and generator monitoring.
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Oil and Gas Industry: Safe and reliable signal connection for temperature, flow, and pressure transmitters in refineries and gas plants.
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Chemical Processing: Centralized terminal connection for analog and digital instrumentation in process automation.
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Pharmaceutical Manufacturing: High-accuracy wiring termination in automated control environments.
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Water and Wastewater Treatment: Stable interconnection of monitoring and control signals across distributed systems.
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Steel and Heavy Manufacturing: Robust performance for temperature and vibration signal connections in industrial machinery.
Advantages
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Reliable Signal Transmission: Ensures low-resistance, high-integrity connections between field devices and control modules.
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Modular Compatibility: Designed to work seamlessly with Yokogawa AMM analog multiplexer series modules.
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Compact and Efficient Layout: Optimized for high-density control cabinets, reducing panel space requirements.
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Quick Installation and Maintenance: Tool-free connection and disconnection simplify wiring and service operations.
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High Electrical Isolation: Provides safe operation and prevents signal interference between channels.
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Durable Construction: Resistant to vibration, temperature fluctuations, and environmental contamination.
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Clear Identification: Numbered terminals and labeled connections aid in error-free installation and maintenance.
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Flexible Mounting Options: Can be mounted on DIN rails or panels depending on system design.
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Compliance with Safety Standards: Fully certified for industrial use, meeting CE, UL, and RoHS regulations.
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Enhanced System Reliability: Reduces wiring errors and improves long-term performance stability in automation systems.
FAQ
1. What is the primary purpose of the AMM25C Terminal Block?
It provides a secure interface between Yokogawa AMM modules and field wiring, enabling stable and accurate signal transmission.
2. Can the AMM25C handle both analog and digital signals?
Yes, it can support analog voltage, current, and digital signals depending on the module it interfaces with.
3. What type of connection method does the AMM25C use?
It typically supports screw-type or spring clamp terminals for flexible wiring configurations.
4. How many channels does the AMM25C support?
The standard configuration supports up to 32 channels for signal input and output.
5. Does the AMM25C provide electrical isolation between channels?
Yes, it offers high insulation resistance and dielectric strength to ensure signal isolation and prevent interference.
6. What wire sizes are compatible with the AMM25C?
It supports wire sizes ranging from 0.2 mm² to 2.5 mm², suitable for both solid and stranded wires.
7. Can it be mounted directly on a DIN rail?
Yes, the AMM25C supports DIN rail mounting for quick installation and organized panel layout.
8. How does the AMM25C maintain signal integrity in noisy environments?
Its design incorporates shielding and grounding features to minimize electromagnetic interference (EMI).
9. Is the AMM25C compatible with all Yokogawa DCS systems?
Yes, it is fully compatible with Yokogawa CENTUM VP, CS3000, and STARDOM system architectures.
10. Does the terminal block require external power?
No, the AMM25C is a passive device and does not require a separate power source for operation.
Recommended Related Models (Same Series)
| Model | Description |
|---|---|
| AMM21 | Thermocouple Input Multiplexer Module |
| AMM22TJ | RTD/Voltage Multiplexer Module |
| AMM23 | Universal Analog Input Module |
| AMM24 | High-Speed Analog Input Module |
| AMM26 | Digital Input Multiplexer Module |
| AMM27 | Mixed Signal Multiplexer Module |
Popular Yokogawa Models (Same Brand)
| Model | Description |
|---|---|
| ADV151 | Digital Output Module |
| AAI141 | Analog Input Module |
| CP345 | Processor Module for DCS Systems |
| PW482 | Power Supply Module |
| AAP135 | Analog Output Module |
| ALR121 | Relay Output Module |
