TE Connectivity ZS4-S-R2 1SNK506414R0000 is a grey and orange screw-clamp DIN-rail disconnect terminal block with a hand-operated lever, 6 mm spacing, conductor capacity up to 4 mm² and IEC ratings of 18 A and 400 V, supplied in a pack of 50.
£5.45
The TE Connectivity ZS4-S-R2 1SNK506414R0000 is a compact grey and orange screw-clamp disconnect terminal block designed for controlled circuit isolation in industrial control panels, instrumentation systems and automation equipment. Part of the TE Connectivity ENTRELEC SNK series, it combines reliable screw-clamp conductor termination with an integrated lever disconnect for convenient commissioning, testing and maintenance.
The ZS4-S-R2 is specifically designed with the same profile as the ZS4-SF fuse terminal block. Its disconnect lever can be operated by hand, helping simplify isolation operations when disconnect and fuse terminals are installed together. The aligned profile also makes wiring alternate disconnect and fused circuits easier and more organised.
With a rated cross-section of 2.5 mm², conductor capacity up to 4 mm², an IEC rated current of 18 A and an IEC rated voltage of 400 V, the ZS4-S-R2 provides dependable connectivity for industrial control and signal circuits. Its compact 6 mm spacing and standard TH35 DIN-rail mounting support efficient, high-density terminal assemblies.
The ZS4-S-R2 provides an integrated lever that opens the electrical circuit directly at the terminal strip, allowing technicians to isolate circuits while leaving permanent field wiring connected. The hand-operated lever supports efficient commissioning, troubleshooting and maintenance in industrial control and instrumentation systems.
A key advantage of the ZS4-S-R2 is its profile alignment with the ZS4-SF fuse terminal block. This allows disconnect and fuse terminals to be installed next to one another in an organised arrangement, simplifying the wiring of alternating protected and disconnectable circuits while maintaining a compact 6 mm terminal pitch.
| Manufacturer | TE Connectivity |
|---|---|
| Brand / family | ENTRELEC |
| Series | SNK |
| Model | ZS4-S-R2 |
| Part number | 1SNK506414R0000 |
| Product type | Screw-clamp terminal block |
| Block function | Disconnect |
| Disconnect type | Lever |
| Connection type | Screw clamp |
| Rated cross-section | 2.5 mm² |
| Number of circuits | 1 |
| Number of levels | 1 |
| Number of positions | 2 |
| Gauge type | A3-B3 |
| Colour | Grey & orange |
| IEC rated current | 18 A |
| IEC rated voltage | 400 V |
| UL rated current | 13 A |
| UL / CSA maximum operating voltage | 150 V |
| CSA rated voltage | 150 V |
| Impulse withstand voltage | 6000 V |
| Dielectric withstand voltage | 1890 V |
| Short-time withstand current at 1 s | 300 A |
| Flexible conductor capacity | 0.22–4 mm² |
| Rigid stranded conductor capacity | 0.2–4 mm² |
| Insulated ferrule capacity | 0.22–4 mm² |
| Non-insulated ferrule capacity | 0.22–4 mm² |
| Two flexible conductors per screw clamp | 0.2–1.5 mm² |
| Two rigid stranded conductors per screw clamp | 0.2–1.5 mm² |
| Wire stripping length | 10.5 mm |
| Tool size | 3.5 mm |
| Product spacing / width | 6 mm |
| Product height | 70.5 mm |
| Product length | 76.8 mm |
| Product depth | 76.8 mm |
| Product weight | 21.6 g |
| Housing material | Polyamide |
| DIN rail mounting | TH35-7.5 / TH35-15 |
| Protection rating | IP20 |
| Flammability rating | UL 94V-0 |
| Operating temperature | -55 to +110 °C |
| Installation temperature | -5 to +40 °C |
| Pack quantity | 50 |
It is a screw-clamp disconnect DIN-rail terminal block designed to connect and selectively isolate circuits in industrial control, instrumentation and automation systems.
The ZS4-S-R2 uses an integrated lever disconnect. The lever can be operated by hand to open the electrical circuit without removing the connected conductors.
The ZS4-S-R2 has an IEC rated current of 18 A and an IEC rated voltage of 400 V.
The ZS4-S-R2 has the same profile as the ZS4-SF fuse terminal block, helping simplify the wiring and arrangement of alternating disconnect and fused circuits.
The TE Connectivity ZS4-S-R2 1SNK506414R0000 is supplied in a pack quantity of 50 disconnect terminal blocks.
TE Connectivity ENTRELEC SNK disconnect terminal blocks provide dependable screw-clamp conductor termination and convenient circuit isolation, with the ZS4-S-R2 offering a hand-operated lever and profile alignment with ZS4-SF fuse terminals for compact and serviceable industrial terminal assemblies.
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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...