Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
1sna115668r0000 – m4/8 snt block
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.
£5.89
Why Choose the TE Connectivity M4/8.SNT Disconnect Terminal Block?
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.
Key Advantages
- Integrated lever disconnect allows convenient circuit isolation without removing field wiring.
- 630 V IEC voltage rating supports a wide range of industrial signal applications.
- 8 kV impulse withstand rating provides robust insulation performance.
- Compact 8 mm-wide design helps conserve DIN rail space.
- Reliable screw-clamp termination provides secure conductor connections.
- Compatible with G32, TH35-7.5 and TH35-15 DIN rails for flexible panel installation.
Key Features
- TE Connectivity / ENTRELEC M4/8.SNT.
- Screw-clamp disconnect terminal block.
- Lever-operated disconnect mechanism.
- Two positions and two poles.
- One circuit on one level.
- 4 mm² / 12 AWG nominal wire size.
- 6.3 A IEC current rating.
- 630 V IEC voltage rating.
- 90 A short-time withstand current for 1 s.
- 8 mm terminal spacing.
- Grey polyamide 6.6 housing.
- UL 94V-0 flammability classification and IP20 protection.
Convenient Circuit Isolation for Testing and Maintenance
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.
Typical Applications
- Industrial control and automation panels.
- Signal circuit isolation and testing.
- PLC input and output wiring.
- Instrumentation and measurement circuits.
- Machine control and process automation systems.
- Commissioning, troubleshooting and maintenance circuits.
Technical Specifications
Tick the specs you need, then view products that match.
| Number of Levels | 1 | |
|---|---|---|
| Product Series | TE SNA | |
| Connection | Screw clamp | |
| Terminal Type | Disconnect / Test | |
| Conductor Size | 4 mm² | |
| Colour | Grey | |
| 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 |
Frequently Asked Questions
What is the TE Connectivity 1SNA115668R0000 used for?
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.
How does the M4/8.SNT disconnect a circuit?
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.
What are the IEC electrical ratings of the M4/8.SNT?
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.
What conductor sizes can the 1SNA115668R0000 accept?
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.
What is the width of the M4/8.SNT?
The terminal has an 8 mm product width and spacing, providing a compact disconnect solution for DIN rail terminal assemblies.
Which DIN rails are compatible with the M4/8.SNT?
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.
Trusted for Industrial Disconnect and Signal Wiring
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.
