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1sna290371r1200 – d1.5/4.2l grey
TE Connectivity 1SNA290371R1200 D1.5/4.2L is a compact grey 4 mm spring-clamp feed-through terminal block rated at 18 A and 800 V for industrial DIN-rail wiring.
Why Choose the TE Connectivity 1SNA290371R1200 D1.5/4.2L Terminal Block?
The TE Connectivity 1SNA290371R1200, also identified as D1.5/4.2L Grey, is a compact spring-clamp feed-through terminal block designed for reliable conductor connection in industrial control panels, machinery and automation systems. Part of the established Entrelec spring-clamp terminal block range now associated with TE Connectivity, it combines a narrow profile with maintenance-friendly spring connection technology.
The D1.5/4.2L provides two connection points for straightforward feed-through wiring and uses spring pressure to maintain consistent contact with the conductor. This connection method helps reduce installation time and eliminates routine screw retightening, while front-access wiring supports efficient assembly and servicing within densely populated electrical enclosures.
With a rated cross-section of 1.5 mm², an IEC rated current of 18 A and a rated voltage of 800 V, the 1SNA290371R1200 delivers dependable performance while occupying only 4 mm of DIN-rail width. Its grey polyamide housing is rated UL 94 V-0 and provides IP20 protection at the main terminals.
Key Advantages
- Compact 4 mm-wide feed-through terminal block for high-density panel wiring.
- Spring-clamp technology provides consistent conductor contact without routine screw retightening.
- 18 A IEC rated current for industrial signal, control and power-distribution circuits.
- 800 V rated voltage supports demanding low-voltage electrical installations.
- Front-access conductor entry simplifies installation and maintenance.
- UL 94 V-0 polyamide insulation supports robust industrial panel construction.
Key Features
- TE Connectivity / Entrelec D1.5/4.2L feed-through terminal block.
- Spring-clamp connection technology.
- Two conductor connections on a single feed-through level.
- 1.5 mm² rated cross-section.
- 18 A rated current according to IEC specifications.
- 800 V rated voltage.
- 8 kV rated impulse withstand voltage.
- Grey polyamide housing with UL 94 V-0 flammability classification.
- Compatible with standard 35 mm DIN rail.
Reliable Spring-Clamp Wiring for Industrial Panels
Spring-clamp terminal blocks maintain conductor contact using a spring mechanism rather than a screw connection. The clamping force is largely independent of the installer and automatically compensates for conductor movement and material settling, helping provide a stable electrical connection over the service life of the installation.
The narrow 4 mm profile of the D1.5/4.2L makes it particularly useful where a large number of conductors must be terminated within limited DIN-rail space. Its front-entry wiring, wide conductor acceptance range and standard TH35 rail compatibility support efficient integration into modern control and automation cabinets.
Typical Applications
- Industrial electrical control panels.
- PLC and automation cabinets.
- Machine-building wiring systems.
- Signal and control circuit termination.
- Instrumentation and process-control panels.
- Compact DIN-rail distribution assemblies.
Technical Specifications
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| Number of Connection Points | 2 | |
|---|---|---|
| Product Series | TE SNA | |
| Connection | Spring clamp | |
| Terminal Type | Multi-level | |
| Conductor Size | 1.5 mm² | |
| Number of Levels | 1 | |
| Colour | Grey | |
| Manufacturer | TE Connectivity / Entrelec | |
| Series | D1.5/4 Spring Clamp Terminal Blocks | |
| Model | D1.5/4.2L | |
| Manufacturer part number | 1SNA290371R1200 | |
| Product type | Feed-through spring-clamp terminal block | |
| Function | Feed-through | |
| Number of levels | 1 | |
| Number of connections | 2 | |
| Connection technology | Spring clamp | |
| Rated cross-section | 1.5 mm² | |
| Rigid conductor capacity | 0.12–2.5 mm² | |
| Flexible conductor capacity | 0.12–1.5 mm² | |
| Conductor with insulated ferrule | 0.5–1 mm² | |
| Rated current | 18 A | |
| Rated voltage | 800 V | |
| Rated impulse withstand voltage | 8 kV | |
| Rated short-time withstand current | 180 A for 1 s | |
| Pitch / width | 4 mm | |
| Height | 58 mm | |
| Depth | 30.5 mm | |
| Wire stripping length | 9.5 mm | |
| Colour | Grey | |
| Insulation material | Polyamide | |
| Flammability classification | UL 94 V-0 | |
| Protection rating | IP20 at main terminals | |
| Pollution degree | 3 | |
| Mounting | TH35-7.5 / TH35-15 DIN rail to IEC 60715 | |
| Operating temperature | -55 to +110 °C | |
| Product weight | approximately 6 g | |
| EAN | 3472592903712 |
Frequently Asked Questions
What is the TE Connectivity 1SNA290371R1200 used for?
It is a feed-through spring-clamp terminal block used to connect conductors in industrial control panels, machinery, automation systems and other DIN-rail electrical assemblies.
What current is the D1.5/4.2L rated for?
The terminal block has an IEC rated current of 18 A.
What voltage rating does the 1SNA290371R1200 have?
The D1.5/4.2L has a rated voltage of 800 V and a rated impulse withstand voltage of 8 kV.
What conductor sizes can the D1.5/4.2L accept?
It accepts rigid conductors from 0.12–2.5 mm² and flexible conductors from 0.12–1.5 mm².
What DIN rail is the D1.5/4.2L designed for?
The terminal block mounts on standard 35 mm DIN rail, including TH35-7.5 and TH35-15 profiles to IEC 60715.
Trusted for Industrial Terminal Connections
TE Connectivity Entrelec spring-clamp terminal blocks are widely used by panel builders, machine manufacturers and automation engineers for compact, dependable and maintenance-friendly industrial wiring.
