TheNTRD02-Ais a high-reliability, heavy-duty Digital Input/Output Termination Unit engineered by ABB to provide rock-solid signal conditioning and physical termination boundaries within Distributed Control Systems (DCS) and high-density PLC architectures.
Technical Specifications
Manufacturer: ABB
Model Designation:NTRD02-A(Also referenced asNTRD02A)
Device Classification: Dual-Function Digital Input / Output Termination Unit
Digital Input Density: 16 Channels, 24 VDC nominal, optically isolated
Digital Output Density: 16 Channels, relay / solid-state drive compatible
Output Switching Rating: 24 VDC @ 0.5 A continuous per channel
Integrated Communication Ports: Native Profibus DP (serial bus) and Ethernet TCP/IP (network) interfaces
Mounting Configurations: Standard 35mm DIN-rail or flat surface panel mount compatible
Ambient Operating Temperature Envelope: -20°C to +60°C
Relative Humidity Tolerance: 5% to 95% RH (Non-condensing)
Product Net Weight: 1.0 kg (Approx. 2.20 lbs)
Physical Footprint Dimensions (W x H x D): 100 mm × 50 mm × 20 mm
Regulatory Compliance & Certifications: CE, RoHS
Industrial Application Scenarios
TheNTRD02-Atermination unit is tailored for localized marshaling cabinets, turbine decks, water treatment facilities, and automated materials handling skids. In large factories, routing thousands of individual sensor lines from field-mounted hardware all the way back to a central PLC subrack is expensive and prone to electrical degradation. TheNTRD02-Ais mounted directly within remote distributed junction boxes near the physical machinery. It terminates, isolates, and condenses local field wiring—such as valve limit switches, photo-eyes, fault contacts, and motor starter relays—and streams the consolidated diagnostic data back to the control room over a single Profibus DP or Ethernet network line.
