Product Overview

The ABB 200-TB3​ is a multi-level (3-level / 3-connection) DIN-rail terminal block belonging to ABB’s renowned 200 Series / S200 / Entrelec terminal block system, designed for control panel signal marshalling, I/O card termination, and power distribution in industrial automation enclosures—including those housing ABB Symphony Plus, Advant OCS, AC800M/F, and third-party PLC/DCS I/O racks. The ABB 200-TB3​ provides three tiers or three connection points per pole (depending on exact sub-type: 3-level stacked terminal or 3-conductor feed-through), allowing technicians to land a field wire, a loop/daisy-chain jumper, and a test/monitor lead all at the same potential—without external distribution blocks or wire nuts. This is especially valuable in DCS/PLC I/O panels where a common analog ground (AGND), 24 V DC supply (+24 V), or digital input common must be fanned out to dozens of I/O points while retaining test-access and clear visual identification.The ABB 200-TB3​ snaps onto standard 35 mm DIN rail (EN 50022 / TS-35) and is available in screw-clamp or spring-cage (spring-pressure) variants, with wire acceptance typically spanning 24–12 AWG (0.2–4 mm² depending on the exact 200-series rating—commonly 2.5 mm² for signal, 4 mm² for power variants). The housing is molded from flame-retardant polyamide 6.6 (UL 94 V-0), color-coded gray or beige as standard (special colors available), and includes an integrated marking slot for the ABB marking strip system (ZM… markers). The 200-TB3​ supports ABB’s pluggable inline jumpers (IK / ZQ series) for potential distribution across adjacent terminals, and many versions provide a test socket (2 mm Ø) on each level for safe voltage/current measurement without disconnecting wires. Because the 200-TB3​ is part of ABB’s modular terminal system, it interlocks with end brackets, partition plates, and disconnect / fuse / diode terminal blocks in the same series—enabling panel builders to create homogeneous, clearly labeled I/O termination strips for analog input groups, digital I/O commons, and 24 V DC / 120 V AC power distribution rails within the same DIN-rail run. In ABB DCS cabinet standards (Symphony Plus, Advant, Freelance), the 200-TB3​ or its S800-series equivalent is routinely specified for marshalling analog 4–20 mA loops (positive in / negative common fanned via jumper bar on a 200-TB3​ serving as AGND/Common block) and for grouping 24 V DC input/output commons—making it a staple MRO item in process plant electrical rooms worldwide.

Technical Specifications