TE Connectivity 1SNA125166R1300 M4/6.D1.N is a blue 6 mm double-level feed-through screw-clamp DIN rail terminal block rated at 32 A and 800 V IEC for conductors up to 4 mm².
£8.07
The TE Connectivity 1SNA125166R1300, manufacturer designation M4/6.D1.N, is a blue double-level feed-through screw-clamp terminal block from the Entrelec SNA range. Designed for DIN rail installation, it combines two connection levels within a compact 6 mm width, making it well suited to high-density industrial control and signal wiring.
The terminal block provides a rated IEC current of 32 A and a rated IEC voltage of 800 V, with conductor capacity up to 4 mm² / 10 AWG. Screw-terminal technology provides a familiar and dependable connection method, while the double-level construction helps increase wiring density without requiring additional DIN rail length.
Manufactured with a polyamide 6.6 housing, the M4/6.D1.N is rated IP20 and uses material meeting UL 94V-0 flammability requirements. It mounts on G32, TH35-7.5 and TH35-15 DIN rails and is designed for an operating temperature range from -55 to +110 °C, supporting demanding industrial panel applications.
Double-level terminal blocks allow two connection levels to occupy the DIN rail space normally associated with a single-width terminal position. The M4/6.D1.N therefore provides a practical solution for panels containing large numbers of signal or control conductors, helping panel builders increase wiring density while maintaining accessible screw connections.
With a 32 A IEC current rating, 800 V IEC voltage rating and conductor capacity up to 4 mm², the 1SNA125166R1300 combines compact dimensions with robust electrical performance. Compatibility with G32 and TH35 rail systems further supports its use in new equipment, panel extensions and maintenance of established Entrelec SNA installations.
| Manufacturer | TE Connectivity / Entrelec |
|---|---|
| Series | ENTRELEC SNA |
| Model | M4/6.D1.N |
| Manufacturer part number | 1SNA125166R1300 |
| Product type | Screw-clamp modular terminal block |
| Block function | Feed-through |
| Primary colour | Blue |
| Number of circuits | 1 |
| Number of levels | 2 |
| Number of positions | 2 |
| Number of poles | 4 |
| Product spacing / width | 6 mm |
| Product height | 65.5 mm |
| Product depth / length | 52 mm |
| IEC voltage rating | 800 V |
| IEC current rating | 32 A |
| CSA voltage rating | 600 V |
| CSA current rating | 25 A |
| IEC impulse withstand voltage | 8 kV |
| Short-time withstand current at 1 s | 480 A |
| Wire size | up to 4 mm² / 10 AWG |
| Flexible conductor capacity | 0.22 to 4 mm² |
| Rigid stranded conductor capacity | 0.2 to 4 mm² |
| Wire stripping length | 8.5 mm |
| Termination method | Screw terminal |
| Tightening torque | 0.5 Nm |
| Tool size | 4 mm |
| Housing material | Polyamide 6.6 |
| DIN rail mounting | G32, TH35-7.5 and TH35-15 |
| Installation temperature | -5 to +40 °C |
| Operating temperature | -55 to +110 °C |
| IP rating | IP20 |
| Flammability rating | UL 94V-0 |
| Product weight | 20 g |
| Circuit application | Signal |
The 1SNA125166R1300 is the Entrelec M4/6.D1.N blue double-level feed-through screw-clamp terminal block, designed for DIN rail-mounted industrial signal and control connections.
Yes. TE Connectivity specifies the M4/6.D1.N with two levels and two positions, providing a compact double-level connection arrangement within a 6 mm width.
The terminal block is rated at 32 A and 800 V under IEC specifications, with an IEC impulse withstand voltage of 8 kV.
The terminal block supports conductors up to 4 mm² / 10 AWG, with specified flexible conductor capacity from 0.22 to 4 mm².
The M4/6.D1.N is designed for mounting on G32, TH35-7.5 and TH35-15 DIN rails.
TE Connectivity specifies an operating temperature range of -55 to +110 °C, with an installation temperature range of -5 to +40 °C.
TE Connectivity Entrelec SNA terminal blocks provide compact and dependable connection technology for industrial control, automation and machinery applications, supporting organised DIN rail wiring in both new installations and established electrical 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...