Overview
The X20TB12 is a removable screw-type terminal block designed for B&R's X20 I/O system, providing secure and flexible wiring connections for industrial automation applications.

Key Specifications
1. General Parameters
Manufacturer: B&R Industrial Automation

Series: X20 System

Type: Terminal Block (Removable)

Part Number: X20TB12

Compatibility: Matches X20 I/O modules (e.g., digital/analog I/O, communication modules)

2. Electrical & Mechanical
Terminal Type: Screw terminals (spring-clamp variants available for other models)

Wiring Capacity:

Solid Wire: 0.08–2.5 mm² (AWG 28–14)

Stranded Wire: 0.25–2.5 mm² (with ferrule)

Torque: 0.5–0.6 Nm (recommended for screws)

Isolation Voltage: 500 V (channel-to-channel)

Contact Material: Nickel-plated copper alloy

3. Environmental Ratings
Operating Temperature: -20°C to +60°C

Storage Temperature: -40°C to +85°C

Humidity: 5–95% RH (non-condensing)

Vibration/Shock Resistance: Complies with IEC 60068-2-6/27

4. Safety & Certifications
Standards:

UL 1059 (Terminal Blocks)

CE, RoHS compliant

Flammability Rating: UL94 V-0

Typical Applications
Wiring interface for X20 digital/analog I/O modules (e.g., X20 DI, X20 AI).

Field wiring termination for sensors, actuators, and communication lines.

Modular cabinet installations requiring tool-free maintenance.

Installation Notes
Tool Requirement: Phillips screwdriver (size PH1 or PH2).

Labeling: Includes marking fields for wire identification.

Reusability: Designed for repeated connection/disconnection.