1sna399899r0600 – d2,5/5,d2,n,ado

Why Choose the TE Connectivity D2.5/5.D2.N.ADO Double-Deck Neutral Terminal Block?

The TE Connectivity / ENTRELEC D2.5/5.D2.N.ADO, manufacturer part number 1SNA399899R0600, is a compact blue double-deck feed-through DIN rail terminal block designed for neutral and common-potential wiring in high-density industrial control panels. Combining ADO System insulation displacement technology with conventional screw-clamp termination, it provides two connection levels within a housing only 5 mm wide, helping panel builders make efficient use of available DIN rail space.

The D2.5/5.D2.N.ADO is the blue identification version of the D2.5/5.D2.ADO double-deck family, making it particularly suitable for neutral circuit identification and organised potential distribution. Its two decks are not internally connected, allowing separate circuits to be routed through the same compact terminal footprint while maintaining electrical separation between levels.

With a rated cross-section of 1 mm², rated current of 13.5 A and rated voltage of 630 V, the 1SNA399899R0600 provides dependable performance for industrial control, signal and neutral wiring. Its IP20 main-terminal protection, wide -55–110 °C operating temperature range and compatibility with standard TH 35 DIN rail make it suitable for machinery, process control and automation installations.

Key Advantages

• Space-saving double-deck construction with two connection levels.
• Only 5 mm wide for high-density industrial panel wiring.
• Blue housing provides clear identification for neutral and common-potential circuits.
• Combines ADO System and screw-clamp termination technologies.
• 13.5 A rated current and 630 V rated voltage.
• Two decks are electrically independent for separate circuit routing.
• ADO System supports up to two wires per connection.
• Standard TH 35 DIN rail mounting simplifies integration into industrial cabinets.

Key Features

• TE Connectivity / ENTRELEC D2.5/5.D2.N.ADO double-deck terminal block.
• Two-level feed-through configuration.
• Blue colour for neutral circuit identification.
• 1 mm² rated cross-section.
• 13.5 A rated current.
• 630 V rated voltage.
• 8,000 V rated impulse withstand voltage.
• 5 mm terminal width / spacing.
• Hybrid ADO System and screw-clamp connection.
• Screw-clamp rigid conductor capacity of 0.2–4 mm².
• Screw-clamp flexible conductor capacity of 0.22–2.5 mm².
• Two clamping positions per level.
• IP20 protection at the main terminals.
• Compatible with TH 35-7.5 and TH 35-15 DIN rail.

High-Density Neutral Wiring with Double-Deck ADO Technology

Double-deck terminal blocks provide two independent wiring levels within a single terminal footprint, allowing more circuits to be installed along a given length of DIN rail. The D2.5/5.D2.N.ADO achieves this within a width of only 5 mm, making it particularly useful for compact PLC cabinets, machinery panels and process automation systems where wiring density is a priority.

The blue housing provides immediate visual identification for neutral or designated common-potential wiring, while the two levels remain electrically independent. Combining ENTRELEC ADO System technology with conventional screw-clamp termination gives installers flexibility when connecting field and internal panel wiring, while the ADO interface supports up to two conductors per connection.

Typical Applications

• Neutral circuit wiring and distribution.
• High-density industrial control panels.
• PLC and automation cabinets.
• Machine building and OEM electrical systems.
• Factory automation and production machinery.
• Process control and instrumentation systems.
• Signal and common-potential circuit distribution.
• DIN rail installations where panel space is limited.