TE Connectivity D2.5/5.I.3L 1SNA399068R1700 is a grey three-connection spring-clamp feed-through DIN rail terminal block rated at 24 A and 800 V with a 2.5 mm² rated cross-section for industrial control and automation wiring.
£1.43
The TE Connectivity D2.5/5.I.3L 1SNA399068R1700 is a compact spring-clamp feed-through terminal block with three connections designed for reliable conductor termination and distribution in industrial control panels, machinery and automation systems. Part of the established Entrelec SNA spring terminal block range, it combines space-efficient DIN rail mounting with dependable spring connection technology.
The D2.5/5.I.3L uses front-entry spring connections that simplify conductor access while maintaining clamping pressure independently of the installer. Automatic compensation for conductor creep helps maintain a secure electrical connection without routine retightening, making the terminal particularly suitable for demanding industrial installations.
With a 2.5 mm² rated cross-section, 24 A rated current and 800 V rated voltage, this grey feed-through terminal provides three connection points in a compact 5 mm pitch. Integrated provisions for jumpering, marking and testing further simplify installation and maintenance within densely populated control cabinets.
Spring-clamp terminal technology maintains controlled contact pressure on the conductor independently of operator tightening torque. This provides a reliable electrical connection while eliminating the routine retightening associated with conventional screw connections and helps the terminal withstand vibration and changing operating conditions.
The D2.5/5.I.3L also incorporates practical panel-building features including front wiring entry, a double jumper system, clearly visible marker positioning and test sockets. Its narrow 5 mm footprint makes it especially useful where a high number of connections must be accommodated within limited DIN rail space.
| Manufacturer | TE Connectivity / Entrelec |
|---|---|
| Series | SNA Spring Terminal Blocks |
| Model | D2.5/5.I.3L |
| Part number | 1SNA399068R1700 |
| Product type | Feed-through spring terminal block |
| Function | Feed-through, 3 connections |
| Connection type | Spring clamp |
| Number of levels | 1 |
| Connections per level | 3 |
| Rated cross-section | 2.5 mm² |
| Rated current | 24 A |
| Rated voltage | 800 V |
| Rated impulse withstand voltage | 8,000 V |
| Rated short-time withstand current | 300 A for 1 s |
| Rigid conductor capacity | 0.12–4 mm² |
| Flexible conductor capacity | 0.12–2.5 mm² |
| UL/CSA conductor range | 26–12 AWG |
| Maximum UL/CSA operating voltage | 600 V |
| Wire stripping length | 9.5 mm |
| Pitch / width | 5 mm |
| Height | 55 mm |
| Depth | 41.5 mm |
| Protection rating | IP20 |
| Mounting rail | TH35-7.5 / TH35-15 DIN rail |
| Insulation material | Polyamide |
| Flammability rating | UL94 V-0 |
| Colour | Grey |
| Operating temperature | -55 to +110 °C |
| Product weight | 8 g |
| EAN | 3472593990681 |
It is a three-connection feed-through spring terminal block used to connect and distribute conductors in industrial control panels, machinery and automation systems.
The terminal block has an IEC rated current of 24 A and a rated voltage of 800 V.
It accepts rigid conductors from 0.12–4 mm² and flexible conductors from 0.12–2.5 mm².
The terminal block is designed for mounting on standard TH35-7.5 and TH35-15 DIN rails.
No. Its spring-clamp connection technology maintains contact pressure automatically, avoiding the routine conductor retightening required by traditional screw-clamp connections.
TE Connectivity and Entrelec SNA spring terminal blocks provide compact, dependable conductor connections for industrial control panels, automation equipment and machine-building applications where reliable wiring and efficient installation are essential.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...