1sna399898r0500 – d2.5/5.d2.ado doubledeck

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

The TE Connectivity / ENTRELEC D2.5/5.D2.ADO, manufacturer part number 1SNA399898R0500, is a compact double-deck feed-through DIN rail terminal block designed for high-density industrial control and automation wiring. Combining ADO System insulation displacement technology with a conventional screw-clamp connection, it provides two connection levels within a housing only 5 mm wide, helping panel builders maximise available DIN rail space.

The D2.5/5.D2.ADO combines the speed and reliability of the ENTRELEC ADO System with the flexibility of standard screw-clamp termination. The ADO connection can accommodate up to two wires per connection, while the screw-clamp side supports conventional stripped conductors, making the terminal suitable for mixed field and internal panel wiring.

With a rated cross-section of 1 mm², rated current of 13.5 A and rated voltage of 630 V, the 1SNA399898R0500 is well suited to industrial signal, control and low-power distribution circuits. Its grey housing, IP20 protection and compatibility with standard TH 35 DIN rail make it a practical solution for machinery, process control and automation cabinets where high wiring density is required.

Key Advantages

• Space-saving double-deck terminal block with two connection levels.
• Only 5 mm wide, helping maximise wiring density in compact control panels.
• Combines ADO System and screw-clamp connection technologies.
• 13.5 A rated current for industrial control and signal circuits.
• 630 V rated voltage for demanding electrical installations.
• ADO connection supports up to two wires per connection.
• Screw-clamp side accepts rigid conductors up to 4 mm².
• Standard DIN rail mounting enables straightforward integration into industrial cabinets.

Key Features

• TE Connectivity / ENTRELEC D2.5/5.D2.ADO double-deck terminal block.
• Two-level feed-through configuration.
• 1 mm² rated cross-section.
• 13.5 A rated current.
• 630 V rated voltage.
• 8,000 V rated impulse withstand voltage.
• 5 mm terminal spacing / width.
• Hybrid screw-clamp and ADO System connection.
• Screw-clamp rigid conductor capacity of 0.2–4 mm².
• Screw-clamp flexible conductor capacity of 0.22–2.5 mm².
• ADO System supports up to two conductors per connection.
• IP20 protection at the main terminals.
• Grey industrial insulating housing.
• Compatible with TH 35-7.5 and TH 35-15 DIN rail.

High-Density Wiring with Double-Deck ADO Technology

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

The combination of ENTRELEC ADO System technology and conventional screw-clamp termination provides flexibility during panel assembly. ADO connections enable fast conductor termination and can accept up to two wires per connection, while the screw-clamp interface supports conventional wiring methods. This hybrid arrangement is useful where field wiring and internal control-panel conductors require different termination methods.

Typical Applications

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