TE Connectivity 1SNA115687R1400 M4/6.SNBT4 is a compact 6 mm ENTRELEC SNA screw-clamp disconnect and measurement terminal block with an integrated test socket, 20 A rating and 0.5–4 mm² rigid conductor capacity for industrial control and signal circuits.
£7.08
The TE Connectivity M4/6.SNBT4 1SNA115687R1400 is a compact screw-clamp disconnect and measurement terminal block designed for circuit isolation, testing and signal wiring in industrial electrical panels. Part of the established ENTRELEC SNA screw terminal range, it combines dependable screw connections with a pivoting disconnect arrangement and an integrated test socket for efficient commissioning, maintenance and troubleshooting.
With a width of only 6 mm, the M4/6.SNBT4 provides high wiring density while retaining convenient access to the disconnect and test functions. The terminal has a single-level, two-connection-point configuration and accommodates rigid conductors from 0.5–4 mm², making it particularly suitable for control, signal and instrumentation circuits.
The 1SNA115687R1400 carries a rated current of 20 A and is designed for mounting on TH35 and G32 DIN rail profiles. Its grey thermoplastic insulating body, wide operating temperature range and integrated test facility make it a practical choice for machine building, factory automation and process-control installations where reliable circuit isolation and accessible testing are required.
Disconnect terminal blocks provide a convenient interface for opening individual circuits during commissioning, testing and maintenance while leaving the permanent field wiring securely terminated. The M4/6.SNBT4 combines this isolation capability with screw-clamp connections, helping technicians perform diagnostic work without repeatedly disconnecting conductors.
The integrated test socket provides a dedicated access point for electrical measurements, while the compact 6 mm profile supports high-density panel layouts. This combination makes the M4/6.SNBT4 particularly useful for signal, instrumentation and automation circuits where accessible testing, organised wiring and dependable connections are important.
| Manufacturer | TE Connectivity / ENTRELEC |
|---|---|
| Series | SNA Screw |
| Model | M4/6.SNBT4 |
| Part number | 1SNA115687R1400 |
| Product type | Disconnect and measurement terminal block |
| Block function | Disconnect / switch |
| Connection technology | Screw clamp |
| Number of levels | 1 |
| Connection points per level | 2 |
| Integrated test socket | Yes |
| Longitudinal disconnect configuration | Pivoting |
| Transverse disconnect configuration | Pivoting |
| Rated current | 20 A |
| Rated voltage | 320 V |
| Rigid conductor cross-section | 0.5–4 mm² |
| Fine-stranded conductor cross-section without ferrule | up to 4 mm² |
| Mounting profile | TH35 / G32 DIN rail |
| Width | 6 mm |
| Height | 44.5 mm |
| Depth | 44.5 mm |
| Colour | Grey |
| Insulating body material | Thermoplastic |
| Flammability classification | V0 |
| Operating temperature range | -55 to +110 °C |
| End plate required | Yes |
| EAN | 3472591156874 |
It is a disconnect and measurement terminal block used to connect, isolate and test electrical circuits in industrial control, automation and instrumentation systems.
The 1SNA115687R1400 has a rated current of 20 A, making it suitable for a wide range of industrial control and signal circuits.
The screw-clamp terminal accepts rigid conductors from 0.5–4 mm² and supports fine-stranded conductors up to 4 mm² without a ferrule.
Yes. The terminal block incorporates an integrated test socket, providing convenient access for circuit measurements and diagnostic testing.
The M4/6.SNBT4 is designed for mounting on TH35 and G32 DIN rail profiles, providing flexibility for industrial control-panel installations.
TE Connectivity ENTRELEC SNA disconnect terminal blocks combine proven screw-clamp connectivity with accessible isolation and testing functions, helping panel builders and automation engineers create organised, reliable and maintainable industrial electrical systems.
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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...