TE Connectivity M4/6.C 1SNA115208R0400 is a grey 4 mm² ENTRELEC SNA screw-clamp feed-through terminal block with a 2.5 mm test socket, rated for 32 A maximum contact current and 800 V AC operation.
£2.94
The TE Connectivity M4/6.C 1SNA115208R0400 is a compact 4 mm² screw-clamp feed-through terminal block with an integrated 2.5 mm test socket, designed for signal wiring, testing and measurement applications in industrial control panels. Part of the proven TE Connectivity ENTRELEC SNA range, it combines dependable conductor termination with convenient circuit test access in a space-saving DIN rail format.
The M4/6.C provides two screw-terminal positions and a feed-through connection while its integrated test socket enables technicians to access the circuit for diagnostics and measurement without disturbing the main conductor terminations. This makes it particularly useful in automation, instrumentation and control systems where efficient commissioning and maintenance are important.
With a rated operating voltage of 800 V AC, a maximum contact current rating of 32 A and conductor capacity up to 4 mm², the M4/6.C combines strong electrical performance with a compact 6 mm terminal width. Its grey polyamide housing and compatibility with G32, TH35-7.5 and TH35-15 DIN rails make it suitable for a broad range of professional industrial panel installations.
Test-socket terminal blocks simplify commissioning, troubleshooting and routine maintenance by providing a dedicated point for electrical measurements. Technicians can connect suitable test equipment directly to the terminal without loosening the primary conductor connection, helping preserve wiring integrity while reducing diagnostic time.
The M4/6.C combines this testing functionality with the established ENTRELEC SNA screw-clamp platform. Its 2.5 mm test socket, compact DIN rail footprint and broad conductor compatibility make it a practical choice for industrial signal circuits that require both reliable termination and convenient measurement access.
| Manufacturer | TE Connectivity / ENTRELEC |
|---|---|
| Series | SNA |
| Model | M4/6.C |
| Manufacturer part number | 1SNA115208R0400 |
| Product type | Screw-clamp feed-through terminal block with test socket |
| Block function | Feed-through |
| Test socket diameter | 2.5 mm |
| Number of positions | 2 |
| Number of levels | 1 |
| Connection method | Screw terminal |
| Wire size | 4 mm² / 10 AWG |
| Flexible conductor capacity | 0.22–4 mm² |
| Rigid stranded conductor capacity | 0.2–4 mm² |
| Insulated ferrule capacity per screw clamp | 2.5 mm² |
| Maximum contact current rating | 32 A |
| Operating voltage | 800 V AC |
| UL / CSA maximum operating voltage | 600 V |
| Impulse withstand voltage | 8 kV |
| Dielectric withstand voltage | 3500 V |
| Short-time withstand current | 480 A for 1 s |
| Tightening torque | 0.5 Nm |
| Wire stripping length | 9.5 mm |
| Product spacing | 6 mm |
| Housing material | Polyamide |
| Colour | Grey |
| Flammability rating | UL 94 V-0 |
| Protection rating | IP20 |
| DIN rail mounting | G32, TH35-7.5 and TH35-15 |
| Operating temperature | -55 to +110 °C |
| Dimensions (H × W × D) | 44.5 × 6 × 40.5 mm |
| Product weight | 8.2 g |
| Circuit application | Signal |
| Pack quantity | 50 pieces |
| EAN | 3472591152081 |
The M4/6.C is a grey 4 mm² screw-clamp feed-through terminal block with an integrated 2.5 mm test socket from the TE Connectivity ENTRELEC SNA range.
The 2.5 mm test socket provides convenient electrical access for measurement, commissioning and diagnostic work without requiring the main conductor connections to be disturbed.
The terminal has an operating voltage rating of 800 V AC, a maximum contact current rating of 32 A and an IEC impulse withstand voltage of 8 kV.
It accepts flexible conductors from 0.22–4 mm² and rigid stranded conductors from 0.2–4 mm², with a nominal wire size of 4 mm² / 10 AWG.
The M4/6.C can be mounted on G32, TH35-7.5 and TH35-15 DIN rails, making it suitable for a wide range of industrial control-panel configurations.
TE Connectivity ENTRELEC SNA terminal blocks combine proven screw-clamp connectivity with practical testing and accessory options, supporting reliable installation, commissioning and maintenance across industrial automation and control systems.
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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...