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1sna399072r0300 – d2,5/5,i,p,3l
TE Connectivity / ENTRELEC 1SNA399072R0300 D2.5/5.I.P.3L is a green-yellow three-connection 2.5 mm² spring-clamp protective earth DIN rail terminal block with a 300 A one-second short-time withstand rating for industrial grounding applications.
£2.95
Why Choose the TE Connectivity D2.5/5.I.P.3L Ground Terminal Block?
The TE Connectivity / ENTRELEC D2.5/5.I.P.3L, manufacturer part number 1SNA399072R0300, is a compact spring-clamp protective earth DIN rail terminal block designed to provide reliable grounding connections in industrial control panels, machinery and automation systems. As part of the established ENTRELEC SNA spring terminal block range, it combines three conductor connections with a screwless rail contact in a space-saving 5 mm-wide format.
The D2.5/5.I.P.3L uses spring-clamp connection technology together with a direct protective earth connection to the mounting rail. Its screwless rail contact is designed to provide a secure, operator-independent grounding connection, while spring pressure maintains dependable conductor contact and automatically compensates for conductor creep over time.
With a rated cross-section of 2.5 mm² and a rated short-time withstand current of 300 A for 1 s, the 1SNA399072R0300 is engineered for protective earth circuits in demanding industrial installations. The green-yellow terminal provides three connections, mounts onto standard TH 35 DIN rail and is designed to meet the requirements of protective conductor terminal block applications.
Key Advantages
- Dedicated protective earth terminal block with three connections.
- Screwless rail contact provides a secure grounding connection to the DIN rail.
- 300 A short-time withstand current for 1 s.
- Compact 5 mm width supports high-density control panel installations.
- Spring-clamp technology provides consistent, operator-independent conductor contact pressure.
- Supports rigid conductors from 0.12–4 mm² and flexible conductors from 0.12–2.5 mm².
- Green-yellow housing provides immediate identification as a protective earth terminal.
- Secure snap-on DIN rail mounting simplifies installation and maintenance.
Key Features
- TE Connectivity / ENTRELEC SNA spring terminal block range.
- Protective earth / ground terminal function.
- Three conductor connections on one level.
- 2.5 mm² rated cross-section.
- 300 A rated short-time withstand current for 1 s.
- 5 mm terminal spacing / width.
- Spring-clamp conductor connection with screwless DIN rail contact.
- IP20 protection at the main terminals.
- Green-yellow polyamide insulating housing.
- UL 94 V-0 flammability classification.
- Compatible with TH 35-7.5 and TH 35-15 DIN rail.
- Designed for secure protective conductor connections in industrial electrical systems.
Reliable Protective Earth Connections for Industrial Panels
Protective earth terminal blocks provide a dedicated connection between electrical conductors and the grounded DIN rail, helping create a safe path for fault current in industrial electrical installations. The D2.5/5.I.P.3L uses a screwless rail contact that makes the protective earth connection automatically when the terminal is correctly mounted onto the compatible DIN rail.
Its spring-clamp conductor connections maintain controlled contact pressure independently of installer tightening torque, helping provide reliable long-term wiring in environments exposed to vibration and temperature variation. The compact 5 mm format and three connection points make the terminal particularly useful for machine builders and panel manufacturers seeking efficient protective earth distribution without sacrificing valuable DIN rail space.
Typical Applications
- Protective earth circuits in industrial control panels.
- Machine building and OEM electrical systems.
- PLC and automation cabinets.
- Factory automation and production machinery.
- Motor control centres and electrical switchgear.
- Industrial instrumentation and process control systems.
- Grounding of field devices and equipment conductors.
- High-density DIN rail terminal assemblies.
Technical Specifications
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| Number of Connection Points | 3 | |
|---|---|---|
| Product Series | TE SNA | |
| Connection | Spring clamp | |
| Terminal Type | Earth (PE) | |
| Conductor Size | 2.5 mm² | |
| Number of Levels | 1 | |
| Colour | Green/Yellow | |
| Manufacturer | TE Connectivity / ENTRELEC | |
| Series | SNA Spring | |
| Model | D2.5/5.I.P.3L | |
| Manufacturer part number | 1SNA399072R0300 | |
| Product type | Spring-clamp protective earth DIN rail terminal block | |
| Function | Ground / protective earth | |
| Number of connections | 3 | |
| Number of levels | 1 | |
| Rated cross-section | 2.5 mm² | |
| Rated short-time withstand current | 300 A for 1 s | |
| Rigid conductor range | 0.12–4 mm² | |
| Flexible conductor range | 0.12–2.5 mm² | |
| Conductor range with insulated ferrule | 0.5–1.5 mm² | |
| AWG conductor range | 26–12 AWG | |
| Connection technology | Spring clamp | |
| Rail connection | Screwless protective earth contact | |
| Wire stripping length | 9.5 mm | |
| Protection rating | IP20 | |
| Pollution degree | 3 | |
| Mounting type | TH 35-7.5 / TH 35-15 DIN rail | |
| Insulation material | Polyamide | |
| Flammability rating | UL 94 V-0 | |
| Operating temperature | -55–110 °C | |
| Colour | Green-yellow | |
| Width | 5 mm | |
| Height | 55 mm | |
| Depth | 41.5 mm | |
| Weight | approx. 11 g | |
| Pack quantity | 50 | |
| EAN | 3472593990728 |
Frequently Asked Questions
What is the TE Connectivity D2.5/5.I.P.3L 1SNA399072R0300 used for?
The D2.5/5.I.P.3L is a protective earth DIN rail terminal block used to connect grounding conductors to the DIN rail in industrial control panels, machinery and automation systems.
How many connections does the D2.5/5.I.P.3L have?
The terminal block provides three conductor connections on a single level, together with its protective earth contact to the DIN rail.
What conductor sizes can the 1SNA399072R0300 accept?
The terminal accepts rigid conductors from 0.12–4 mm² and flexible conductors from 0.12–2.5 mm².
What is the short-time withstand current of the D2.5/5.I.P.3L?
The terminal block has a rated short-time withstand current of 300 A for 1 s, supporting dependable protective earth performance during fault conditions.
How is the D2.5/5.I.P.3L mounted?
The 1SNA399072R0300 snaps onto standard TH 35-7.5 or TH 35-15 DIN rail, with its screwless rail contact providing the protective earth connection to the rail.
Trusted Industrial Connection Technology
TE Connectivity / ENTRELEC SNA protective earth terminal blocks provide machine builders, panel builders and automation engineers with compact and dependable grounding connections, combining spring-clamp conductor technology with secure screwless DIN rail contact.
