B&R X20TB52 Safety‑Keyed Push‑in Terminal Block

Technical Specifications

Model:X20TB52

Brand:B&R

Contact quantity:12‑pin

Terminal type:Push‑in spring terminal with lever,safety‑keyed anti‑misplug coding

Pitch:4.2mm

Permitted wire:solid copper 0.08‑2.5mm²(28‑14AWG);stranded copper 0.25‑2.5mm²(24‑14AWG);ferrule 0.25‑1.5mm²(24‑16AWG)

Double ferrule:max 2×0.75mm²

Stripping length:7‑9mm

Push‑in force per contact:Typ.10N

Nominal voltage:240VAC

Max voltage:300VAC

Nominal current:10A per contact

Contact resistance:≤5mΩ

Note:Aluminum wires are prohibited,matched for X20 SafeIO safety modules

Protection class:IP20

Horizontal operating temperature:‑25℃ ~ +60℃

Vertical operating temperature:‑25℃ ~ +50℃

Storage temperature:‑40℃ ~ +85℃

Built‑in function

X20TB52 safety‑coded push‑in terminal block is specially designed for X20 SafeIO safety I/O modules. Unique safety‑keyed coding prevents wrong‑terminal mis‑insertion. Lever‑type push‑in structure realizes tool‑free fast wiring and reliable copper‑wire connection.

Product Brief

X20TB52 belongs to B&R X20 I/O accessory family,yellow housing for safety‑related I/O application. Only fits corresponding X20 SafeIO modules,shall not mix with ordinary X20TB12 terminal block. Widely used for original B&R automation equipment maintenance and renovation. ESD anti‑static protection shall be followed during installation