1sna146255r0100 – dr4/8,ado,ex

Why Choose the TE Connectivity DR4/8.ADO.Ex 1SNA146255R0100 Terminal Block?

The TE Connectivity DR4/8.ADO.Ex 1SNA146255R0100 is a grey ENTRELEC miniblock feed-through terminal block designed for compact industrial wiring installations. It combines screw-clamp and ADO insulation displacement connection technology, providing a practical interface for dependable conductor termination in control, automation and instrumentation systems.

The DR4/8.ADO.Ex has a rated cross-section of 2.5 mm² and an 8 mm pitch. Its single-level construction and compact miniblock format make it particularly useful where panel space is limited, while the combination of screw-clamp and ADO connections supports efficient integration into industrial terminal assemblies.

Designed specifically for the compact TH15-5.5 DIN rail to IEC 60715, the terminal measures approximately 31 mm high × 8 mm wide × 18.5 mm deep. Its polyamide insulating housing is suitable for operating and storage temperatures from -55 to +110 °C, supporting dependable use across demanding industrial environments.

Key Advantages

• Compact miniblock feed-through design for space-restricted installations.
• Combines screw-clamp and ADO connection technology.
• 2.5 mm² rated cross-section for industrial control and signal wiring.
• Compact 8 mm terminal spacing supports organised panel layouts.
• Purpose-designed for the compact TH15-5.5 DIN rail.
• Durable polyamide insulating housing for industrial applications.
• Wide -55 to +110 °C operating temperature range.

Key Features

• TE Connectivity ENTRELEC DR4/8.ADO.Ex terminal block.
• Miniblock feed-through terminal configuration.
• Screw-clamp and ADO system connection.
• 2.5 mm² rated cross-section.
• 8 mm product spacing.
• Single-level construction.
• Grey polyamide insulating housing.
• Mounting on TH15-5.5 DIN rail to IEC 60715.
• Compact dimensions of 31 × 8 × 18.5 mm.
• Operating and storage temperature range of -55 to +110 °C.
• Individual product weight of approximately 7 g.
• Supplied in manufacturer packs of 100 pieces.

Compact Miniblock Connections for Industrial Wiring

Miniblock terminals are designed for applications where conventional terminal blocks would consume excessive panel space. By mounting on a compact 15 × 5.5 mm DIN rail, the DR4/8.ADO.Ex provides an efficient way to organise feed-through connections in instrumentation, control and automation equipment with restricted installation space.

The combination of screw-clamp and ADO connection technology gives the DR4/8.ADO.Ex additional wiring flexibility while retaining a narrow 8 mm modular pitch. Its polyamide construction, broad temperature capability and compact dimensions make it well suited to dense industrial terminal assemblies and specialised OEM equipment.

Typical Applications

• Compact industrial electrical panels.
• Instrumentation and process-control systems.
• Factory and machine automation equipment.
• Signal and control wiring assemblies.
• TH15 miniature DIN rail installations.
• OEM machinery and compact electrical equipment.