1sna146071r2400 – d2,5/5,ado,ex

Why Choose the TE Connectivity 1SNA146071R2400 D2,5/5.ADO.Ex Terminal Block?

The TE Connectivity 1SNA146071R2400, also known as the D2,5/5.ADO.Ex, is a compact feed-through IDC terminal block designed for reliable conductor connections in industrial control panels, process automation equipment and hazardous-area electrical installations. As part of the proven ENTRELEC terminal block range, it combines a screw clamp connection with the ADO insulation displacement connection system for efficient and dependable industrial wiring.

The D2,5/5.ADO.Ex provides two different connection technologies within a single terminal block. The ADO insulation displacement connection enables conductors to be terminated without conventional stripping on the ADO side, while the screw clamp connection provides a familiar and secure termination method on the opposite side. Its Ex-rated design makes it particularly suitable for industrial applications where approved terminal components are required for potentially explosive environments.

With a 1 mm² rated cross-section, 13.5 A rated current and 750 V rated voltage, the D2,5/5.ADO.Ex provides a compact solution for industrial signal and power connections. Its narrow 5 mm spacing helps maximise wiring density, while compatibility with TH35-7.5 and TH35-15 DIN rails allows straightforward integration into standard electrical cabinets and control systems.

Key Advantages

• Compact feed-through terminal block with ADO insulation displacement technology.
• Combination of ADO and screw clamp connection methods in one terminal.
• 13.5 A rated current for industrial wiring applications.
• 750 V rated voltage for dependable electrical connections.
• Ex-rated design suitable for appropriately engineered hazardous-area installations.
• Only 5 mm wide, helping maximise wiring density within control panels.

Key Features

• TE Connectivity / ENTRELEC D2,5/5.ADO.Ex terminal block.
• Feed-through configuration.
• ADO insulation displacement and screw clamp connections.
• 1 mm² rated cross-section.
• 13.5 A rated current.
• 750 V rated voltage.
• 5 mm terminal spacing for high-density installations.
• Single-level design with two connection points.
• Light grey insulating housing.
• Polyamide / thermoplastic insulation construction.
• UL 94 V-0 flammability classification.
• DIN rail mounting on TH35-7.5 and TH35-15 rails.

Efficient ADO Connections for Industrial Wiring

ADO insulation displacement technology is designed to simplify conductor termination by creating the electrical connection through the conductor insulation, reducing preparation requirements compared with conventional stripped-wire terminations. Combined with a screw clamp connection on the opposite side, the D2,5/5.ADO.Ex provides a practical interface between different industrial wiring methods.

The terminal's narrow 5 mm footprint makes it particularly useful where control-panel space is limited, while its feed-through configuration supports straightforward point-to-point wiring. The Ex-rated version extends its suitability to appropriately designed hazardous-area systems used in process industries and other demanding industrial environments.

Typical Applications

• Industrial electrical control panels.
• Process automation and instrumentation systems.
• Hazardous-area electrical installations.
• PLC and automation control cabinets.
• Machine building and OEM electrical systems.
• High-density DIN rail wiring assemblies.