1sna399742r1700 – d1,5/6,d2,ado,nf

Why Choose the TE Connectivity D1.5/6.D2.ADO.NF Double-Deck Terminal Block?

The TE Connectivity D1.5/6.D2.ADO.NF, part number 1SNA399742R1700, is a compact double-deck feed-through IDC terminal block designed for demanding railway and rolling-stock electrical installations. Using the TE Connectivity Entrelec ADO System, it provides screwless insulation displacement connections while accommodating two independent circuits within a space-saving 6 mm terminal width.

The double-level design enables two electrically independent feed-through circuits to be installed in the footprint normally associated with a single terminal position. Each connection uses ADO insulation displacement technology, reducing conductor preparation and eliminating conventional terminal screws, while supporting up to two wires per connection. Red connection marking helps installers identify the appropriate wire size.

With a rated cross-section of 1.5 mm², rated current of 17.5 A and rated voltage of 800 V, the D1.5/6.D2.ADO.NF provides dependable electrical performance for high-density wiring. Its beige thermoplastic housing, IP20 terminal protection and compatibility with TH 35-7.5 and TH 35-15 DIN rails make it well suited to professional railway control and distribution assemblies.

Key Advantages

• Double-deck design accommodates two independent circuits in only 6 mm of DIN rail width.
• ADO System insulation displacement connections provide fast screwless conductor termination.
• Designed for rolling-stock applications exposed to vibration and shock.
• Supports up to two wires per connection.
• 17.5 A rated current and 800 V rated voltage.
• Compatible with standard 35 mm DIN rail systems.

Key Features

• TE Connectivity / Entrelec D1.5/6.D2.ADO.NF terminal block.
• Double-deck feed-through configuration.
• Two independent electrical circuits.
• ADO System screwless insulation displacement technology.
• 1.5 mm² rated cross-section.
• 17.5 A main-circuit rated current.
• 800 V rated voltage.
• 6 kV rated impulse withstand voltage.
• 180 A short-time withstand current for 1 s.
• IP20 protection at the main terminals.

Space-Saving ADO Connections for Railway Wiring

Double-deck terminal blocks allow two independent electrical circuits to be accommodated within a single narrow terminal position, reducing the amount of DIN rail space required in densely wired equipment. The D1.5/6.D2.ADO.NF achieves this within a 6 mm footprint while maintaining separate feed-through circuits across its two connection levels.

The ADO insulation displacement system further simplifies wiring by terminating compatible conductors without conventional screw clamps. Designed with rolling-stock applications in mind, the terminal is particularly suited to electrical assemblies where compact dimensions, secure conductor connections and dependable operation under vibration and shock are important.

Typical Applications

• Railway and rolling-stock electrical systems.
• Train control and auxiliary equipment cabinets.
• Rail vehicle signal and control wiring.
• High-density double-deck terminal assemblies.
• Industrial automation and control panels.
• Transportation equipment exposed to vibration and mechanical shock.