TE Connectivity 1SNA115668R0000 M4/8.SNT is a grey 4 mm² screw-clamp disconnect terminal block with a lever-operated disconnect, 8 mm spacing, a 6.3 A IEC current rating and a 630 V IEC voltage rating for industrial signal circuits.
£9.06
The TE Connectivity 1SNA115668R0000 M4/8.SNT is a compact 4 mm² screw-clamp disconnect terminal block designed for circuit isolation, testing and signal wiring in industrial control panels, machinery and automation systems. Part of the established ENTRELEC SNA series, it combines secure conductor termination with an integrated lever-operated disconnect function.
The M4/8.SNT provides two connection positions, two poles and one circuit on a single level. Its lever disconnect allows the electrical path to be opened directly at the terminal without removing the connected conductors, making it useful for commissioning, troubleshooting, measurement and maintenance applications where circuits need to be isolated conveniently.
With an IEC current rating of 6.3 A, an IEC voltage rating of 630 V and an 8 kV impulse withstand rating, the M4/8.SNT is designed for dependable industrial signal circuits. Its grey polyamide 6.6 housing is only 8 mm wide and mounts on G32, TH35-7.5 or TH35-15 DIN rails.
Disconnect terminal blocks provide a dedicated point for opening an electrical circuit while leaving the permanently connected conductors securely terminated. The TE Connectivity M4/8.SNT uses an integrated lever-operated disconnect, allowing technicians to separate the circuit directly at the terminal during testing, commissioning, fault finding or maintenance.
The combination of screw-clamp conductor termination, an 8 mm-wide housing and compatibility with several common DIN rail profiles makes the M4/8.SNT easy to integrate into industrial terminal assemblies. Its 630 V IEC voltage rating and signal-circuit designation make it particularly suitable for control, monitoring and instrumentation wiring where accessible circuit isolation is beneficial.
| Manufacturer | TE Connectivity / ENTRELEC |
|---|---|
| Series | ENTRELEC SNA |
| Model | M4/8.SNT |
| Part number | 1SNA115668R0000 |
| Product type | Screw-clamp terminal block |
| Block function | Disconnect |
| Disconnect type | Lever |
| Circuit application | Signal |
| Number of positions | 2 |
| Number of poles | 2 |
| Number of circuits | 1 |
| Number of levels | 1 |
| Gauge type | A4 |
| Nominal wire size | 4 mm² / 12 AWG |
| Flexible conductor capacity | 0.5–4 mm² |
| Rigid stranded conductor capacity | 0.5–6 mm² |
| IEC current rating | 6.3 A |
| UL current rating | 15 A |
| CSA current rating | 10 A |
| IEC voltage rating | 630 V |
| CSA voltage rating | 250 V |
| UL / CSA maximum main-circuit operating voltage | 600 V |
| Operating voltage | 630 V AC |
| IEC impulse withstand voltage | 8 kV |
| Short-time withstand current at 1 s | 90 A |
| Termination method | Screw terminal |
| Tightening torque | 0.5 N·m |
| Wire stripping length | 9.5 mm |
| Recommended tool size | 4 mm |
| Product spacing | 8 mm |
| Housing material | Polyamide 6.6 |
| Colour | Grey |
| Mounting type | DIN rail |
| DIN rail compatibility | G32, TH35-7.5 and TH35-15 |
| Dimensions (H × W × D) | 56.5 × 8 × 41 mm |
| Product weight | 13 g |
| Installation temperature range | -5 to +40 °C |
| Operating temperature range | -55 to +110 °C |
| Protection rating | IP20 |
| Flammability rating | UL 94V-0 |
| Barcode | 3472591156683 |
| Pack quantity | 50 pieces |
The 1SNA115668R0000 M4/8.SNT is a screw-clamp disconnect terminal block designed for terminating and isolating signal circuits in industrial control, automation, instrumentation and machinery applications.
The M4/8.SNT incorporates a lever-operated disconnect mechanism that allows the electrical path through the terminal to be opened without removing the connected conductors.
The terminal block has an IEC current rating of 6.3 A, an IEC voltage rating of 630 V and an impulse withstand voltage rating of 8 kV.
The M4/8.SNT accepts flexible conductors from 0.5–4 mm² and rigid stranded conductors from 0.5–6 mm², with a nominal wire size of 4 mm² / 12 AWG.
The terminal has an 8 mm product width and spacing, providing a compact disconnect solution for DIN rail terminal assemblies.
The M4/8.SNT can be mounted on G32, TH35-7.5 and TH35-15 DIN rails, making it suitable for common industrial panel configurations.
TE Connectivity ENTRELEC SNA disconnect terminal blocks combine secure screw-clamp conductor termination with accessible circuit isolation, helping panel builders create organised, compact and serviceable industrial control and automation installations.
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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...