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1sna290389r1500 – d1.5/4.p.4l
TE Connectivity 1SNA290389R1500 D1.5/4.P.4L is a compact 4 mm wide green-yellow protective earth spring terminal block with four connections and a 1.5 mm² rated cross-section for industrial panel grounding.
Why Choose the TE Connectivity 1SNA290389R1500 D1.5/4.P.4L Ground Terminal Block?
The TE Connectivity 1SNA290389R1500, also identified as D1.5/4.P.4L, is a compact spring-clamp protective earth terminal block with four connections designed for reliable grounding in industrial electrical panels and automation systems. Part of the established Entrelec SNA spring terminal block range, it combines a narrow profile with secure conductor termination and straightforward DIN-rail mounting.
The D1.5/4.P.4L uses spring connection technology to maintain consistent conductor contact pressure without depending on screw-tightening torque. Its four-connection arrangement supports efficient protective earth distribution, while the green-yellow housing provides immediate visual identification of the grounding function within a terminal assembly.
With a rated cross-section of 1.5 mm², a compact 4 mm width and a short-time withstand current of 180 A for 1 s, the 1SNA290389R1500 is well suited to dense control cabinets, machinery panels and industrial distribution systems where dependable protective earth connections are essential.
Key Advantages
- Dedicated protective earth terminal block for industrial grounding circuits.
- Four spring-clamp connections support efficient earth conductor distribution.
- Compact 4 mm width conserves valuable DIN-rail space.
- 180 A / 1 s short-time withstand current for robust protective earth performance.
- Green-yellow housing provides clear grounding identification.
- Compatible with standard TH35 DIN rails for straightforward panel integration.
Key Features
- TE Connectivity / Entrelec D1.5/4 series.
- Ground terminal block with four connections.
- Spring-clamp conductor termination.
- 1.5 mm² rated cross-section.
- 4 mm terminal spacing.
- Flexible conductor capacity up to 1.5 mm².
- Rigid conductor capacity up to 2.5 mm².
- IP20 protection at the main terminals.
- Polyamide insulation with UL94 V0 flammability classification.
- Mounting on TH35-7.5 and TH35-15 DIN rails.
Reliable Protective Earth Connections for Industrial Panels
Protective earth terminal blocks provide a dedicated connection between field conductors and the grounding system of an electrical installation. The D1.5/4.P.4L is designed specifically for this purpose, with green-yellow identification and a spring-clamp connection system that maintains conductor pressure throughout the service life of the installation.
Its four-connection configuration makes it practical for distributing protective earth conductors within compact control cabinets. Compatibility with standard 35 mm DIN rails allows the terminal to be integrated alongside other SNA terminal blocks for organised, modular panel wiring.
Typical Applications
- Protective earth distribution in industrial control panels.
- PLC and automation cabinets.
- Machine-building electrical systems.
- Process control and instrumentation panels.
- Industrial power distribution assemblies.
- High-density DIN-rail terminal installations.
Technical Specifications
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| Number of Connection Points | 4 | |
|---|---|---|
| Connection | Spring clamp | |
| Terminal Type | Earth (PE) | |
| Conductor Size | 1.5 mm² | |
| Number of Levels | 1 | |
| Product Series | TE SNA | |
| Colour | Green/Yellow | |
| Manufacturer | TE Connectivity / Entrelec | |
| Series | SNA Spring Terminal Blocks | |
| Model | D1.5/4.P.4L | |
| Part number | 1SNA290389R1500 | |
| Product type | Protective earth / ground spring terminal block | |
| Function | Ground | |
| Number of connections | 4 | |
| Number of levels | 1 | |
| Connection technology | Spring clamp | |
| Rated cross-section | 1.5 mm² | |
| Flexible conductor capacity | 0.12–1.5 mm² | |
| Rigid conductor capacity | 0.12–2.5 mm² | |
| Conductor with insulated ferrule | 0.5–1 mm² | |
| UL/CSA conductor capacity | 16 AWG | |
| Rated short-time withstand current | 180 A for 1 s | |
| Protection rating | IP20 at main terminals | |
| Pollution degree | 3 | |
| Insulation material | Polyamide | |
| Flammability rating | UL94 V0 | |
| Colour | Green-yellow | |
| DIN-rail mounting | TH35-7.5 / TH35-15 to IEC 60715 | |
| Wire stripping length | 9.5 mm | |
| Width | 4 mm | |
| Height | 80 mm | |
| Depth | 30.5 mm | |
| Weight | 10 g | |
| Operating temperature | -55 to +110 °C | |
| Pack quantity | 50 pieces | |
| EAN | 3472592903897 |
Frequently Asked Questions
What is the TE Connectivity 1SNA290389R1500 used for?
It is a protective earth spring terminal block used to provide secure grounding connections in industrial control panels, automation cabinets and machinery wiring systems.
How many connections does the D1.5/4.P.4L provide?
The D1.5/4.P.4L provides four spring-clamp connections for protective earth conductors.
What conductor sizes can the 1SNA290389R1500 accept?
It accepts flexible conductors from 0.12–1.5 mm², rigid conductors from 0.12–2.5 mm², and conductors with insulated ferrules from 0.5–1 mm².
What is the short-time withstand current?
The terminal block has a rated short-time withstand current of 180 A for 1 s.
Which DIN rails are compatible with the D1.5/4.P.4L?
It mounts on TH35-7.5 and TH35-15 35 mm DIN rails in accordance with IEC 60715.
Trusted Industrial Grounding Technology
TE Connectivity and Entrelec spring terminal blocks are widely used in industrial automation and electrical distribution systems where compact installation, reliable conductor retention and dependable protective earth connections are required.
