Technical Specifications:

• Number of Terminals: 32
• Rated Current per Terminal: 16 A
• Rated Voltage: 250 V AC / DC
• Wire Cross Section: 0.5 mm² to 2.5 mm² (solid), 0.5 mm² to 4 mm² (stranded with ferrule)
• Screw Torque: 0.8 Nm (recommended)
• Wire Stripping Length: 10 mm
• Isolation Voltage: 500 V DC (between terminals)
• Pollution Degree: 2 (per IEC 60664)
• Operating Temperature: 0°C to +55°C
• Storage Temperature: -25°C to +70°C
• Dimensions (W x H x D): 44 mm x 90 mm x 115 mm
• Weight: Approx. 0.15 kg
• Mounting: DIN rail TS 35 (EN 60715)

Functional Features:

• 32 individual screw-clamp terminals arranged in two rows of 16
• Clear terminal numbering (1–32) printed on label strip
• Color-coded terminal marks for easy identification
• DIN rail clip with snap-in mounting
• Pre-wired bridge capability for common signal grouping (e.g., common ground, common 24 V)
• Tool-free connection via standard 1.5 mm flathead screwdriver

Performance Parameters:

• Contact Resistance: < 3 mΩ (initial)
• Contact Resistance (after life test): < 5 mΩ
• Mechanical Life: > 100 operations (screw/unscrew cycles)
• Electrical Life: > 10,000 operations (at rated load)
• Vibration Resistance: 5 g (per IEC 60068-2-6)
• Shock Resistance: 15 g (per IEC 60068-2-27)

Material Composition:

• Housing: Flame-retardant PA66 (polyamide 6.6) with glass fiber reinforcement, UL 94 V-0 rated
• Terminal Screws: Zinc-plated steel, corrosion-resistant
• Terminal Contacts: Tin-plated copper alloy (CuSn6)
• Label Strip: Polycarbonate (PC), UV-resistant
• DIN Rail Clip: Spring steel, tin-plated

Structural Features:

• Standard X20 module width: 44 mm
• Front-facing X20 bus connector
• Two rows of 16 terminals on the front face for organized wiring
• Label strip spanning the full width for terminal identification
• Snap-in DIN rail mounting

Working Principle:
The X20TB32 is a purely passive terminal distribution module. Field wires from sensors, switches, and actuators are connected to the 32 screw terminals. The electrical signals pass through the terminals and are routed to the corresponding X20 I/O modules via the X20 system bus connector at the rear. The module contains no active electronics; it serves exclusively as a mechanical wiring interface with robust screw-clamp connections that ensure gas-tight, vibration-resistant contact.

Advantages & Highlights:

• High-density wiring (32 points) in a single 44 mm module
• 16 A per terminal handles power and signal wiring
• Organized two-row layout simplifies wiring of complex systems
• Bridge wiring capability reduces wire count for common signals
• UL 94 V-0 rated housing for fire safety compliance
• Zero maintenance — no active components to fail

Applicable Industries:

• High-channel-count machine building
• Assembly lines with many sensors/actuators
• Packaging machines with multiple zones
• Printing presses
• Automotive assembly lines
• Food processing with many I/O points

Installation Requirements:

• Mount on DIN rail TS 35 (EN 60715)
• Connect to X20 bus via rear bus connector
• Use wire ferrules for all stranded conductors
• Strip wire to 10 mm for optimal insertion
• Torque all terminal screws to 0.8 Nm
• Plan wiring layout in advance — use bridge connections for common signals (24 V, 0 V) to save wire

Usage Precautions:

• Do not exceed 16 A per terminal
• Do not use solid and stranded wires on the same terminal
• Always use ferrules on stranded wire
• Do not overtighten screws (max 0.8 Nm)
• Label all wires before connection for future maintenance
• Do not operate above +55°C ambient temperature