1sna399736r0100 – d2,5/8,ado,nf

Why Choose the TE Connectivity D2.5/8.ADO.NF Feed-Through Terminal Block?

The TE Connectivity D2.5/8.ADO.NF, part number 1SNA399736R0100, is a robust ADO System insulation displacement feed-through terminal block developed for demanding railway and rolling-stock electrical applications. Its screwless IDC connection technology provides fast conductor termination while maintaining reliable electrical contact in installations exposed to vibration, shock and other demanding operating conditions.

The D2.5/8.ADO.NF uses ADO insulation displacement connections on both sides, allowing compatible flexible conductors to be terminated without conventional screw clamps. It supports up to two wires per connection and incorporates blue connection marking to help identify the applicable wire size during installation and maintenance.

With an IEC rated current of 24 A, rated voltage of 1000 V and impulse withstand voltage of 8 kV, the terminal provides strong electrical performance in a compact 8 mm width. It mounts on standard TH 35-7.5 and TH 35-15 DIN rails and provides IP20 protection at the main terminals.

Key Advantages

• ADO System insulation displacement connections enable fast screwless conductor termination.
• Designed for railway and rolling-stock applications exposed to vibration and shock.
• 24 A IEC rated current for dependable electrical distribution.
• 1000 V IEC rated voltage with an 8 kV impulse withstand rating.
• Supports up to two wires per connection.
• Compatible with standard 35 mm DIN rail systems.

Key Features

• TE Connectivity / Entrelec D2.5/8.ADO.NF terminal block.
• Feed-through IDC terminal configuration.
• ADO System screwless insulation displacement technology.
• 8 mm terminal spacing / width.
• 24 A IEC rated current.
• 1000 V IEC rated voltage.
• 300 A short-time withstand current for 1 s.
• IP20 main-terminal protection.
• Beige thermoplastic insulating housing.

Reliable ADO Connections for Railway Electrical Systems

Railway electrical equipment requires conductor connections capable of maintaining dependable performance when exposed to vibration, mechanical shock and demanding environmental conditions. The D2.5/8.ADO.NF is specifically designed for rolling-stock applications and uses the TE Connectivity ADO System to provide secure insulation displacement termination without conventional terminal screws.

The ADO connection system also reduces conductor preparation during assembly and supports up to two conductors at each connection point. Combined with standard TH 35 DIN rail mounting, high electrical ratings and a compact form factor, this makes the D2.5/8.ADO.NF suitable for organised and efficient railway control and distribution wiring.

Typical Applications

• Railway and rolling-stock electrical systems.
• Train control and auxiliary equipment cabinets.
• Rail vehicle power and signal distribution.
• Industrial control and automation panels.
• Transportation electrical assemblies exposed to vibration and shock.
• High-density DIN rail feed-through wiring.