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1sna115660r0400 – block m 4-8 sn1
TE Connectivity M4/8.SN1 1SNA115660R0400 is an ENTRELEC SNA screw clamp disconnect terminal block with 8 mm spacing, 630 V AC operating voltage and lever isolation for industrial signal circuits.
£5.84
Why Choose the TE Connectivity M4/8.SN1 1SNA115660R0400 Disconnect Terminal Block?
The TE Connectivity M4/8.SN1 1SNA115660R0400 is a durable and reliable screw clamp disconnect terminal block designed for signal circuits in industrial control, automation and electrical distribution systems. As part of the established TE Connectivity ENTRELEC SNA series, it provides secure conductor termination together with a convenient lever disconnect function for circuit isolation, testing and maintenance.
The M4/8.SN1 uses proven screw-terminal connection technology to maintain dependable electrical contact in industrial environments. Its integrated lever disconnect mechanism enables technicians to isolate a connected circuit without removing field conductors, helping simplify commissioning, diagnostics and maintenance within control cabinets and machine wiring systems.
With an operating voltage rating of 630 V AC, a maximum contact current rating of 6.3 A and conductor capacity up to 6 mm² for rigid stranded conductors, the M4/8.SN1 is suitable for a wide range of industrial signal applications. Its compact 8 mm spacing and DIN rail mounting make it easy to incorporate into organised terminal assemblies.
Key Advantages
- Reliable screw clamp disconnect terminal block for signal circuits.
- Lever disconnect mechanism provides convenient circuit isolation for testing and maintenance.
- 630 V AC operating voltage rating for industrial electrical installations.
- 6.3 A maximum contact current rating.
- Accepts rigid stranded conductors from 0.5–6 mm².
- Compact 8 mm spacing supports organised, space-efficient control panel wiring.
Key Features
- TE Connectivity ENTRELEC SNA series.
- Two-position disconnect terminal block.
- Lever-type disconnect mechanism.
- 630 V AC operating voltage.
- 6.3 A maximum contact current.
- 8 mm product spacing.
- DIN rail mounting on G32, TH35-15 and TH35-7.5 rail profiles.
- Polyamide housing with UL 94V-0 flammability rating.
Reliable Signal Circuit Isolation for Industrial Systems
Disconnect terminal blocks such as the TE Connectivity M4/8.SN1 provide a convenient point for terminating and isolating electrical signal circuits inside control panels. The integrated lever disconnect allows a circuit to be opened during testing, commissioning or fault finding without disconnecting the installed conductors from the screw terminals.
The ENTRELEC SNA series is designed for dependable DIN rail-mounted industrial wiring. Its robust polyamide housing, screw-clamp termination and compatibility with common DIN rail profiles make the M4/8.SN1 suitable for machine builders, panel builders and automation engineers requiring reliable circuit management in compact electrical assemblies.
Typical Applications
- Industrial control panels and electrical cabinets.
- PLC and automation signal circuits.
- Instrumentation and measurement wiring.
- Machine building and OEM control systems.
- Testing, commissioning and maintenance circuits.
- Process control and industrial electrical installations.
Technical Specifications
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| Conductor Size | 4 mm² | |
|---|---|---|
| Product Series | TE SNA | |
| Connection | Screw clamp | |
| Terminal Type | Disconnect / Test | |
| Colour | Grey | |
| Manufacturer | TE Connectivity / ENTRELEC | |
| Series | ENTRELEC SNA | |
| Model | M4/8.SN1 | |
| Part number | 1SNA115660R0400 | |
| Product type | Screw clamp disconnect terminal block | |
| Block function | Disconnect | |
| Disconnect type | Lever | |
| Number of positions | 2 | |
| Gauge type | A4 | |
| Operating voltage | 630 V AC | |
| Maximum UL / CSA main-circuit operating voltage | 600 V | |
| Maximum contact current | 6.3 A | |
| Impulse withstand voltage | 8000 V | |
| Dielectric withstand voltage | 2500 V | |
| Short-time withstand current at 1 s | 90 A | |
| Wire size | up to 4 mm² / 12 AWG | |
| Rigid stranded conductor capacity | 0.5–6 mm² | |
| Flexible conductor capacity | 0.5–4 mm² | |
| Termination method | Screw terminal | |
| Tightening torque | 0.5 Nm | |
| Wire stripping length | 9.5 mm | |
| Product spacing | 8 mm | |
| Dimensions (H × W × D) | 56.5 × 8 × 41 mm | |
| Product length | 41 mm | |
| Weight | approx. 13 g | |
| Housing material | Polyamide | |
| Colour | Grey | |
| Protection rating | IP20 | |
| Flammability rating | UL 94V-0 | |
| Operating temperature | -55 to 110 °C | |
| Mounting type | DIN rail | |
| DIN rail compatibility | G32 / TH35-15 / TH35-7.5 | |
| Circuit application | Signal |
Frequently Asked Questions
What is the TE Connectivity M4/8.SN1 1SNA115660R0400 used for?
This disconnect terminal block is designed for terminating and isolating signal circuits in industrial control panels, automation equipment and DIN rail-mounted electrical assemblies.
What voltage and current ratings does the M4/8.SN1 have?
The M4/8.SN1 has an operating voltage rating of 630 V AC and a maximum contact current rating of 6.3 A.
What wire sizes can the M4/8.SN1 accept?
The terminal accepts rigid stranded conductors from 0.5–6 mm² and flexible conductors from 0.5–4 mm², with a listed wire size up to 12 AWG.
How does the disconnect function work?
The M4/8.SN1 incorporates a lever-type disconnect that allows the electrical circuit to be opened for testing, commissioning or maintenance without removing the connected field wiring.
Which DIN rails are compatible with the M4/8.SN1?
The terminal block is designed for DIN rail mounting and is compatible with G32, TH35-15 and TH35-7.5 rail profiles.
Trusted Industrial Connectivity from TE Connectivity
TE Connectivity ENTRELEC SNA terminal blocks provide dependable electrical termination and circuit management for industrial automation, control panels, machine building and other professional electrical installations.
