1sna299521r2600 – dh4/6,ado

Why Choose the TE Connectivity DH4/6.ADO 1SNA299521R2600 Terminal Block?

The TE Connectivity DH4/6.ADO 1SNA299521R2600 is a compact 1.5 mm² feed-through miniblock terminal combining ADO insulation-displacement technology with a conventional screw-clamp connection. Part of the established TE Connectivity / Entrelec ADO terminal block system, it is specifically designed for industrial control applications where available installation space is highly restricted.

The hybrid ADO and screw-clamp connection system provides flexibility when terminating different sides of a circuit. The ADO side accepts rigid conductors from 0.28–1.5 mm² and flexible conductors from 0.34–1.5 mm², while the screw-clamp side accommodates conductors up to 4 mm². The ADO connection can also accept up to two conductors per connection point.

With an IEC rated current of 17.5 A, rated voltage of 800 V and impulse withstand voltage of 8 kV, the DH4/6.ADO provides substantial electrical performance within a compact 6 mm spacing. A snap-in mounting foot simplifies direct base mounting, making the terminal particularly useful in compact machinery, control equipment and automation assemblies.

Key Advantages

• Combines ADO insulation-displacement and screw-clamp termination in one compact terminal.
• Designed specifically for installations where available wiring space is restricted.
• 17.5 A IEC rated current and 800 V IEC rated voltage.
• ADO connection supports fast conductor termination and up to two wires per connection.
• Screw-clamp side accepts conductors up to 4 mm².
• Compact 6 mm spacing helps maximise wiring density.
• Snap-in mounting foot enables convenient direct base mounting.

Key Features

• TE Connectivity / Entrelec DH4/6.ADO terminal block.
• Feed-through ADO / screw-clamp miniblock.
• 1.5 mm² rated cross-section.
• ADO rigid conductor range of 0.28–1.5 mm².
• ADO flexible conductor range of 0.34–1.5 mm².
• Screw-clamp rigid conductor range of 0.2–4 mm².
• Screw-clamp flexible conductor range of 0.22–4 mm².
• 17.5 A IEC rated current.
• 800 V IEC rated voltage.
• 8,000 V impulse withstand voltage.
• IP20 protection at the main terminals.
• Grey insulating housing with compact 6 mm width.

Flexible ADO and Screw-Clamp Connection Technology

The DH4/6.ADO combines two established conductor-termination methods within one compact terminal. The ADO insulation-displacement side enables fast conductor connection and can accommodate up to two wires per connection point, while the conventional screw-clamp side provides compatibility with a broad range of rigid and flexible conductors.

This hybrid design is particularly useful when compact wiring density and connection flexibility are required simultaneously. With a width of only 6 mm and direct snap-in base mounting, the DH4/6.ADO can be integrated into restricted spaces while still providing electrical ratings suitable for demanding industrial control circuits.

Typical Applications

• Compact industrial control panels.
• Automation and PLC equipment.
• Machine building and OEM electrical systems.
• Instrumentation and control wiring.
• Space-restricted electrical assemblies.
• Industrial equipment requiring mixed ADO and screw-clamp termination.
• Direct-mounted terminal assemblies where DIN rail space is unavailable.