ABB NTDI21-B | Digital I/O Termination Module | Bailey Series
$258.00
$520.00
Penerangan
Product Description
The NTDI21-B from ABB’s Bailey series is a high-performance digital I/O termination module engineered for reliable interfacing of field devices with distributed control systems. It ensures stable signal connection, channel isolation, and robust surge protection, making it suitable for demanding industrial environments.
Technical Specifications
| Feature | Specification |
|---|---|
| Model | NTDI21-B |
| Module Type | Digital Input/Output Termination Unit |
| Digital Inputs | 16 channels, standard ON/OFF signals (24 VDC typical) |
| Digital Outputs | 16 channels, standard ON/OFF signals (24 VDC typical) |
| Isolation | Electrical isolation between I/O channels and system bus |
| Surge Protection | Integrated suppression circuits for industrial disturbances |
| Power Supply | 24 VDC ±10% |
| Mounting | DIN rail or panel installation |
| Dimensions | 120 × 100 × 50 mm |
| Weight | 0.5 kg |
| Operating Temperature | –25 °C to +60 °C |
| Protection Rating | IP20 (cabinet installation) |
Key Features
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Reliable Signal Termination: Secure and organized connection point for digital I/O wiring.
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Channel Isolation: Prevents electrical interference between field devices and the controller.
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Surge Resistance: Protects the system from transient voltages and spikes.
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Compact Form Factor: Optimized for space-saving in control panels.
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System Integration: Designed specifically for ABB Bailey DCS platforms.
Applications
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Power Generation: Interfaces turbine controls, switchgear, and actuator circuits.
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Chemical & Process Industries: Connects pumps, motor drives, and safety interlocks.
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Marine Automation: Reliable I/O for shipboard monitoring and control systems.
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Industrial Automation: General-purpose digital interface for sensors and actuators.
FAQ
Q: Can the NTDI21-B be used with non-ABB DCS systems?
A: It is optimized for ABB Bailey systems; compatibility with other DCS may require verification.
Q: Does it support high-current digital outputs?
A: Outputs are standard 24 VDC ON/OFF signals; external relays are recommended for high-current loads.
Q: What maintenance is required?
A: Inspect wiring connections and surge protection periodically; module itself is maintenance-free under normal conditions.
Q: Are similar ABB modules available?
A: The NTDI21-A and NTDI22-B provide comparable digital I/O interfaces with variations in channel count and output configuration.
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