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1sna399073r0400 – d2.5/5.i.p.4l 4spring
TE Connectivity D2.5/5.I.P.4L 1SNA399073R0400 is a 2.5 mm² green-yellow protective earth terminal block with four spring-clamp connections, a 5 mm pitch and screwless DIN rail grounding for industrial control panels.
£4.22
Why Choose the TE Connectivity D2.5/5.I.P.4L Ground Terminal Block?
The TE Connectivity D2.5/5.I.P.4L, part number 1SNA399073R0400, is a compact spring-clamp protective earth terminal block with four connections designed for reliable grounding in industrial control panels, machinery and electrical distribution assemblies. Part of the established Entrelec SNA terminal block range, it combines space-efficient 5 mm pitch construction with a screwless rail connection for dependable protective conductor termination.
The terminal block features a green-yellow housing for immediate protective earth identification and uses spring-clamp conductor connections to provide fast, consistent wiring without conventional terminal screws. Its screwless connection to the DIN rail helps provide a secure earth path while reducing installation dependence on operator-applied tightening torque.
With a rated cross-section of 2.5 mm², four connection points and support for rigid conductors from 0.12–4 mm², the D2.5/5.I.P.4L is well suited to compact industrial wiring systems. It mounts on standard TH 35-7.5 and TH 35-15 DIN rails and provides IP20 protection at the terminals.
Key Advantages
- Four spring-clamp connections for efficient protective earth distribution.
- 2.5 mm² rated cross-section for common industrial grounding conductors.
- Screwless rail contact provides a dependable protective earth connection.
- 5 mm pitch supports high-density control panel layouts.
- Green-yellow colour provides clear protective earth identification.
- Compatible with standard 35 mm DIN rails.
Key Features
- TE Connectivity / Entrelec SNA series.
- D2.5/5.I.P.4L ground terminal block.
- Four conductor connection points.
- Spring-clamp conductor termination.
- Screwless DIN rail earth connection.
- 5 mm terminal pitch.
- IP20 terminal protection.
- Rated short-time withstand current of 300 A for 1 s.
- Operating temperature range of -55 to +110 °C.
Reliable Protective Earth Connections for Industrial Panels
Protective earth terminal blocks provide a controlled connection between equipment grounding conductors and the metal DIN rail, helping maintain electrical safety in control panels and machinery. The D2.5/5.I.P.4L uses a screwless rail-contact system that establishes the ground connection when the terminal is securely mounted on a compatible DIN rail.
Its four spring-clamp connections allow several protective conductors to be terminated within a compact 5 mm footprint. Spring technology maintains consistent conductor contact without routine screw tightening, making this terminal particularly useful in high-density industrial assemblies where fast installation and dependable long-term connections are required.
Typical Applications
- Protective earth distribution in electrical control panels.
- Industrial automation and PLC cabinets.
- Machinery and OEM equipment grounding.
- Switchgear and electrical distribution assemblies.
- Motor control centres and drive panels.
- High-density DIN rail wiring systems.
Technical Specifications
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| Number of Connection Points | 4 | |
|---|---|---|
| Connection | Spring clamp | |
| Terminal Type | Earth (PE) | |
| Conductor Size | 2.5 mm² | |
| Number of Levels | 2 | |
| Product Series | TE SNA | |
| Colour | Green/Yellow | |
| Manufacturer | TE Connectivity / Entrelec | |
| Series | SNA | |
| Model | D2.5/5.I.P.4L | |
| Manufacturer part number | 1SNA399073R0400 | |
| Product type | Protective earth / ground terminal block | |
| Connection technology | Spring clamp | |
| Number of connections | 4 | |
| Rated cross-section | 2.5 mm² | |
| Pitch | 5 mm | |
| Rigid conductor capacity | 0.12–4 mm² | |
| Flexible conductor capacity | 0.12–2.5 mm² | |
| Flexible conductor with insulated ferrule | 0.5–1.5 mm² | |
| UL conductor range | 26–12 AWG | |
| CSA conductor range | 26–14 AWG | |
| Rated short-time withstand current | 300 A for 1 s | |
| Protection rating | IP20 | |
| Colour | Green-yellow | |
| DIN rail compatibility | TH 35-7.5 / TH 35-15 | |
| Wire stripping length | 9.5 mm | |
| Dimensions (H × W × D) | 55 × 5 × 41.5 mm | |
| Operating temperature | -55 to +110 °C | |
| Storage temperature | -55 to +110 °C | |
| Net weight | approx. 12 g | |
| Pack quantity | 50 pieces | |
| Barcode | 3472593990735 |
Frequently Asked Questions
What is the TE Connectivity D2.5/5.I.P.4L used for?
The D2.5/5.I.P.4L is a protective earth terminal block used to connect grounding conductors to a DIN rail in industrial electrical panels, machinery and automation systems.
How many connections does the D2.5/5.I.P.4L provide?
The terminal block provides four spring-clamp conductor connections, allowing multiple protective earth conductors to be terminated in a compact footprint.
What conductor sizes can be connected?
The terminal accepts rigid conductors from 0.12–4 mm² and flexible conductors from 0.12–2.5 mm².
Which DIN rails are compatible with 1SNA399073R0400?
The terminal block is designed for mounting on standard TH 35-7.5 and TH 35-15 DIN rails.
What is the pitch of the D2.5/5.I.P.4L?
The terminal block has a compact pitch of 5 mm, making it suitable for high-density panel wiring applications.
Why is the terminal block green and yellow?
The green-yellow colour identifies the terminal as a protective earth connection, helping distinguish grounding conductors from other circuit connections within an electrical assembly.
Trusted for Industrial Protective Earth Connections
TE Connectivity / Entrelec SNA terminal blocks are widely used in industrial control, machinery and electrical distribution applications where compact installation, dependable conductor termination and clearly identified protective earth connections are essential.
