Why Choose the TE Connectivity DS4/8.P.ADO 1SNA199527R1000 Ground Terminal Block?
The TE Connectivity DS4/8.P.ADO 1SNA199527R1000 is a compact green-yellow protective earth miniblock from the ENTRELEC SNA ADO range. Designed for applications where panel space is restricted, it combines an ADO insulation displacement connection with a conventional screw-clamp connection and provides a direct protective earth connection to the DIN rail.
The DS4/8.P.ADO has a rated cross-section of 2.5 mm² and an 8 mm spacing. Its screw-clamp side accepts rigid conductors from 0.2–4 mm², while the ADO connection provides the benefits of insulation displacement termination and can accommodate up to two wires per connection.
Measuring approximately 49 × 8 × 28 mm (H × W × D), the 1SNA199527R1000 provides a compact protective earth solution for TH35-7.5 and TH35-15 DIN rails. A screwless rail-contact system provides the earth connection to the mounting rail, while the green-yellow polyamide housing ensures immediate visual identification as a protective conductor terminal.
Key Advantages
- Dedicated protective earth miniblock for industrial DIN rail installations.
- Combines ADO insulation displacement and screw-clamp connection technologies.
- Screwless rail contact provides a secure protective earth connection to the DIN rail.
- 2.5 mm² rated cross-section for compact protective conductor wiring.
- Rigid conductor capacity of 0.2–4 mm² on the screw-clamp connection.
- Up to two wires per ADO connection.
- Compact 8 mm width is particularly useful where installation space is restricted.
- Green-yellow housing provides clear protective earth identification.
Key Features
- TE Connectivity / ENTRELEC DS4/8.P.ADO earth miniblock.
- Manufacturer part number 1SNA199527R1000.
- Screw clamp – ADO System connection arrangement.
- 2.5 mm² rated cross-section.
- 300 A for 1 s rated short-time withstand current.
- Single-level terminal configuration.
- Non-operator-dependent screwless rail contact.
- IP20 protection at the main terminals.
- Green-yellow polyamide insulating housing.
- UL94 V-0 flammability classification.
- Compatible with standard 35 mm DIN rails.
Reliable Protective Earth Connections in Compact Panels
Protective earth terminals provide a dependable connection between equipment protective conductors and the grounded mounting rail. The DS4/8.P.ADO uses a screwless rail contact designed to provide the protective earth connection independently of operator tightening, helping create consistent grounding arrangements within industrial terminal strips.
The combination of ADO technology and a conventional screw clamp gives installers flexibility when terminating conductors, while the compact 8 mm profile makes the terminal particularly suitable for densely populated panels. Its 300 A for 1 s short-time withstand capability further supports its role in protective conductor installations.
Typical Applications
- Protective earth wiring in industrial control panels.
- PLC and factory automation cabinets.
- Machine and equipment grounding circuits.
- Process control and instrumentation systems.
- Compact DIN rail terminal assemblies.
- Industrial installations requiring green-yellow protective conductor terminals.
