ABB S200-TBNF Fused Terminal Base

Description

ABB S200-TBNF Fused Terminal Base

Product Overview

The ABB S200-TBNF (also referenced as 200-TBNF) is a fused terminal base unit belonging to ABB’s S200 I/O system (commonly used within ABB Advant Controller, AC 800M, and System 800xA distributed control architecture).

The terminal base serves as the mounting structure and field wiring interface for S200 I/O modules. It features integrated field-fusing protection, spring/screw terminal connections for field I/O signals, and internal backplane connection points that allow signal and power pass-through to adjacent modules without extra wiring.

Technical Specifications

Key Advantages

• Integrated Field Fusing: Individual or group field circuit protection built directly into the base unit, eliminating the need for external DIN-rail fuse blocks.
• Hot-Swappable I/O Modules: Allows insertion or removal of S200 I/O modules without interrupting the field wiring or disturbing adjacent terminal bases on the DIN rail.
• Simplified Panel Wiring: Internal bus bars automatically carry power and communication signals along the rail, significantly reducing field panel wiring density and installation time.
• Durable Construction: Heavy-duty industrial housing designed to withstand vibration and electromagnetic interference in harsh control room environments.
• Clear Diagnostic Indication: Accommodates blow-fuse indicators for rapid troubleshooting during field short-circuits or overcurrent events.

Important Usage & Installation Precautions

• Fuse Rating Compliance: Ensure the inserted 5×20 mm cartridge fuse rating does not exceed the maximum allowable current for the specific I/O module plugged into the base.
• Power Isolation Before Servicing: Always disconnect external field power before replacing fuses or modifying field termination wiring to prevent electrical shock or arc flash.
• Firm Mechanical Latching: Ensure the S200-TBNF base is firmly locked onto the DIN rail and side-interlocked with adjacent terminal units to maintain continuous backplane bus connection.
• Current and Voltage Limits: Do not exceed 230 V AC / 10 A across power bus terminals.
• Dust & Moisture Protection: Rated IP20; must be installed inside an appropriately rated IP54 or NEMA 12 control enclosure to protect against dust, humidity, and conductive contaminants.

Applications

• Distributed Control Systems (DCS): Serves as field I/O termination for ABB System 800xA and Advant OCS installations.
• Industrial Process Automation: Used in chemical processing, oil & gas facilities, water/wastewater treatment, and power generation.
• Factory Automation & Machinery: Terminal interfacing for solenoid valves, field sensors, relays, and motor starters controlled by S200 I/O systems.

Shipping Port: Xiamen, China

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