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1sna290221r0400 – block ds2.5/5.2l
TE Connectivity 1SNA290221R0400 DS2.5/5.2L is a grey SNA Miniblocks single-level spring-clamp feed-through terminal block rated at 24 A and 800 V with a 2.5 mm² rated cross-section and compact 5 mm pitch for TH35 DIN-rail installations.
£0.6655
Why Choose the TE Connectivity DS2.5/5.2L 1SNA290221R0400 Terminal Block?
The TE Connectivity / Entrelec DS2.5/5.2L 1SNA290221R0400 is a compact grey spring-clamp feed-through terminal block from the SNA Miniblocks range, designed for reliable conductor connection in industrial control panels and automation equipment. Its single-level design provides two connection points with a compact 5 mm pitch.
The DS2.5/5.2L uses spring-clamp technology to provide consistent contact pressure independently of operator tightening. Front conductor entry improves accessibility during wiring, while the compact angled housing helps save valuable DIN-rail space in densely populated electrical panels.
Rated at 24 A and 800 V under IEC specifications, the terminal block has a rated cross-section of 2.5 mm² and accepts rigid conductors from 0.12–4 mm². It mounts on standard TH35 DIN rail, features IP20 protection at the main terminals and uses V0-rated thermoplastic insulation.
Key Advantages
- Spring-clamp connection provides consistent conductor contact pressure without screw tightening.
- Compact 5 mm pitch helps maximise available DIN-rail space.
- Front wiring entry provides convenient conductor access during installation and maintenance.
- Rated for up to 24 A at 800 V under IEC specifications.
- Accepts rigid conductors from 0.12–4 mm².
- Suitable for standard TH35-7.5 and TH35-15 DIN rails.
- Wide operating temperature range of -55 to +110 °C.
- Compact housing is only 5 mm wide.
Key Features
- TE Connectivity / Entrelec SNA spring terminal block.
- Type: DS2.5/5.2L.
- Function: Feed-through terminal block.
- Connections: 2.
- Number of levels: 1.
- Termination method: Spring clamp.
- Rated cross-section: 2.5 mm².
- Pitch: 5 mm.
- Colour: Grey.
- DIN rail mounting: TH35.
Compact Spring-Clamp Connection for Industrial Panels
The DS2.5/5.2L combines a compact angled housing with spring-clamp conductor termination, making it particularly suitable for control panels where installation space and wiring accessibility are important. Spring contact pressure is maintained independently of the installer, with automatic compensation helping preserve a dependable electrical connection over time.
Mounting on standard TH35 DIN rail allows straightforward integration into conventional industrial terminal assemblies. With a 5 mm pitch, two feed-through connections and front conductor entry, the 1SNA290221R0400 provides a practical solution for signal, control and power wiring within its specified electrical ratings.
Typical Applications
- Industrial electrical control panels.
- PLC and automation cabinets.
- Machine control systems.
- Instrumentation and signal wiring.
- DIN-rail terminal assemblies.
- Power and control distribution panels.
- OEM machinery and industrial equipment.
Technical Specifications
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| Number of Connection Points | 2 | |
|---|---|---|
| Connection | Spring clamp | |
| Terminal Type | Feed-through | |
| Conductor Size | 2.5 mm² | |
| Number of Levels | 1 | |
| Product Series | TE SNA | |
| Colour | Grey | |
| Manufacturer | TE Connectivity / Entrelec | |
| Series | SNA Miniblocks | |
| Type | DS2.5/5.2L | |
| Manufacturer part number | 1SNA290221R0400 | |
| Product type | Spring-clamp feed-through terminal block | |
| Number of levels | 1 | |
| Connections per level | 2 | |
| Rated cross-section | 2.5 mm² | |
| Rigid conductor capacity | 0.12–4 mm² | |
| Flexible conductor capacity without ferrule | 0.12–2.5 mm² | |
| Rated current | 24 A | |
| Rated voltage | 800 V | |
| Rated impulse withstand voltage | 8 kV | |
| Pitch / width | 5 mm | |
| Height | 38 mm | |
| Depth | 24.5 mm | |
| Mounting | TH35-7.5 / TH35-15 DIN rail | |
| Colour | Grey | |
| Insulating material | Thermoplastic | |
| Flammability classification | UL 94 V0 | |
| Degree of protection | IP20 at main terminals | |
| Operating temperature | -55 to +110 °C | |
| Wire stripping length | 9.5 mm | |
| Net weight | approx. 4 g | |
| EAN | 3472592902210 |
Frequently Asked Questions
What is the TE Connectivity 1SNA290221R0400?
The 1SNA290221R0400 is the DS2.5/5.2L, a grey single-level spring-clamp feed-through terminal block from the Entrelec SNA Miniblocks range.
What current and voltage is the DS2.5/5.2L rated for?
The DS2.5/5.2L has an IEC rated current of 24 A and a rated voltage of 800 V.
What conductor sizes can the 1SNA290221R0400 accept?
The terminal block has a rated cross-section of 2.5 mm², accepts rigid conductors from 0.12–4 mm² and flexible conductors without ferrules from 0.12–2.5 mm².
How is the DS2.5/5.2L mounted?
The terminal block is designed for mounting on standard TH35-7.5 or TH35-15 DIN rail.
What are the dimensions of the DS2.5/5.2L terminal block?
The terminal block is approximately 5 mm wide, 38 mm high and 24.5 mm deep, providing a compact 5 mm pitch for space-efficient terminal assemblies.
Reliable Spring Terminal Connections for Industrial Systems
TE Connectivity and Entrelec SNA spring terminal blocks provide panel builders, automation engineers and electrical installers with compact, accessible and dependable conductor connections for professional industrial control and distribution assemblies.
