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1sna290344r1700 – d2,5/5,a,nl,l,v0
TE Connectivity 1SNA290344R1700 D2.5/5.A.NL.L is a 5 mm wide double-level spring terminal block rated at 24 A and 400 V for compact industrial control and distribution wiring.
Why Choose the TE Connectivity 1SNA290344R1700 D2.5/5.A.NL.L Terminal Block?
The TE Connectivity 1SNA290344R1700, also identified as D2.5/5.A.NL.L or D2,5/5,A,NL,L,V0, is a compact double-level spring terminal block designed for reliable electrical connections in industrial control and distribution systems. Part of the established Entrelec SNA spring terminal block range, it combines high-density wiring capability with front-access conductor entry for efficient panel installation.
The D2.5/5.A.NL.L uses spring-clamp connection technology, providing consistent contact pressure independently of operator tightening torque while automatically compensating for conductor creep. Its compact angled construction and two-level arrangement help reduce the amount of DIN-rail space required in densely populated electrical cabinets.
With a nominal cross-section of 2.5 mm², rated current of 24 A and rated voltage of 400 V, the 1SNA290344R1700 is suited to industrial control wiring and TN-C-S network applications. Its grey polyamide housing has a UL94 V0 flammability classification, while the main terminals provide IP20 protection.
Key Advantages
- Compact double-level terminal block saves valuable DIN-rail space.
- Spring-clamp technology provides consistent conductor contact pressure.
- Front wiring entry enables convenient conductor access during installation and maintenance.
- 24 A rated current and 400 V rated voltage for industrial wiring applications.
- Accepts flexible conductors up to 2.5 mm² and rigid conductors up to 4 mm².
- Grey polyamide insulation with UL94 V0 flammability classification.
Key Features
- TE Connectivity / Entrelec D2.5/5 series.
- Two connection levels for space-efficient panel wiring.
- 5 mm terminal spacing and width.
- Spring-clamp conductor connection.
- 2.5 mm² nominal cross-section.
- 24 A rated current.
- 400 V rated voltage.
- 6,000 V rated impulse withstand voltage.
- Compatible with TH35-7.5 and TH35-15 DIN rails.
- IP20 protection at the main terminals.
Reliable Spring-Clamp Connections for Industrial Panels
Spring terminal blocks maintain conductor contact pressure without relying on screw-tightening torque, helping provide consistent electrical connections throughout the service life of an installation. Automatic compensation for conductor creep further supports dependable performance in industrial environments where electrical assemblies may experience temperature changes and vibration.
The D2.5/5.A.NL.L combines this spring connection principle with a compact angled, double-level configuration. Front-access wiring simplifies installation in densely populated cabinets, while compatibility with standard 35 mm DIN rails allows straightforward integration into modular control and distribution assemblies.
Typical Applications
- Industrial electrical control panels.
- TN-C-S network installations.
- PLC and automation cabinets.
- Machine-building electrical systems.
- Process control and instrumentation panels.
- Electrical distribution and marshalling systems.
- High-density DIN-rail terminal assemblies.
Technical Specifications
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| Number of Levels | 2 | |
|---|---|---|
| Product Series | TE SNA | |
| Connection | Spring clamp | |
| Terminal Type | Multi-level | |
| Conductor Size | 2.5 mm² | |
| Colour | Grey | |
| Manufacturer | TE Connectivity / Entrelec | |
| Series | SNA Spring Terminal Blocks | |
| Model | D2.5/5.A.NL.L | |
| Part number | 1SNA290344R1700 | |
| Alternative designation | D2,5/5,A,NL,L,V0 | |
| Product type | Multi-level spring terminal block | |
| Function | Installation | |
| Number of levels | 2 | |
| Connection technology | Spring clamp | |
| Nominal cross-section | 2.5 mm² | |
| Flexible conductor capacity | 0.14–2.5 mm² | |
| Rigid conductor capacity | 0.14–4 mm² | |
| Conductor with insulated ferrule | 0.5–2.5 mm² | |
| Rated current | 24 A | |
| Rated voltage | 400 V | |
| Rated impulse withstand voltage | 6,000 V | |
| Maximum operating voltage UL/CSA | 300 V | |
| Protection rating | IP20 at main terminals | |
| Insulation material | Polyamide | |
| Flammability rating | UL94 V0 | |
| Colour | Grey | |
| DIN-rail mounting | TH35-7.5 / TH35-15 to IEC 60715 | |
| Wire stripping length | 9.5 mm | |
| Width | 5 mm | |
| Height | 107 mm | |
| Depth | 39.5 mm | |
| Weight | 14 g | |
| Operating temperature | -55 to +110 °C | |
| Pack quantity | 40 pieces | |
| EAN | 3472592903446 |
Frequently Asked Questions
What is the TE Connectivity 1SNA290344R1700 used for?
It is a double-level spring terminal block designed for compact conductor termination in industrial electrical panels, automation systems and TN-C-S network installations.
What current and voltage is the D2.5/5.A.NL.L rated for?
The terminal block has a rated current of 24 A and a rated voltage of 400 V.
What conductor sizes can the 1SNA290344R1700 accept?
It accepts flexible conductors from 0.14–2.5 mm², rigid conductors from 0.14–4 mm², and conductors with insulated ferrules from 0.5–2.5 mm².
What type of connection technology does this terminal block use?
The D2.5/5.A.NL.L uses spring-clamp technology, providing consistent contact pressure without depending on operator-applied screw torque.
Which DIN rails are compatible with the 1SNA290344R1700?
The terminal block can be mounted on TH35-7.5 and TH35-15 35 mm DIN rails in accordance with IEC 60715.
Trusted Industrial Connection Technology
TE Connectivity and Entrelec terminal blocks are used throughout industrial automation, machinery and electrical distribution applications where compact construction, reliable conductor termination and efficient control-panel wiring are essential.
