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1snk506312r0000 – zs4-s-t2.3-r1 [pk=50] switch block
TE Connectivity ZS4-S-T2.3-R1 1SNK506312R0000 is a grey 4 mm²-class ENTRELEC SNK screw clamp disconnect switch terminal block with a closed blade and two 2.3 mm test socket screws, rated at 26 A and 400 V IEC and supplied in a pack of 50.
£3.38
Why Choose the TE Connectivity ZS4-S-T2.3-R1 1SNK506312R0000 Switch Block?
The TE Connectivity ZS4-S-T2.3-R1 1SNK506312R0000 is a specialised 4 mm² screw clamp disconnect terminal block designed for circuit isolation, testing and measurement within industrial control and automation systems. Part of the TE Connectivity ENTRELEC SNK Series, it combines secure screw clamp conductor termination with an integrated blade disconnect and test facilities.
The ZS4-S-T2.3-R1 features a closed orange disconnect blade together with two 2.3 mm test socket screws, enabling convenient access for electrical testing while maintaining an organised DIN rail installation. Its single-level, two-position configuration provides one disconnect circuit, making it particularly suitable for instrumentation, measurement, commissioning and maintenance applications.
With an IEC rated current of 26 A and an IEC rated voltage of 400 V, the terminal provides dependable performance for industrial control circuits. Its grey polyamide housing, IP20 protection, UL 94V-0 flammability rating and wide -55 to +110 °C operating temperature range support reliable use in demanding electrical installations.
Key Advantages
- Integrated blade disconnect function enables convenient circuit isolation.
- Features two 2.3 mm test socket screws for measurement and diagnostic access.
- 26 A IEC rated current for industrial control and signal circuits.
- 400 V IEC rated voltage supports a wide range of electrical applications.
- Accepts single flexible conductors up to 4 mm².
- Compact 6 mm pitch supports space-efficient DIN rail assemblies.
- Proven screw clamp connection provides secure conductor termination.
Key Features
- TE Connectivity ENTRELEC SNK Series.
- ZS4-S-T2.3-R1 disconnect switch terminal block.
- 4 mm² conductor class.
- Closed orange blade disconnect.
- Two 2.3 mm test socket screws.
- 26 A IEC rated current.
- 400 V IEC rated voltage.
- Single-level, two-position, one-circuit configuration.
- 6 mm product spacing.
- Grey polyamide housing.
- IP20 protection rating.
- UL 94V-0 flammability rating.
- DIN rail mounting for industrial panel installations.
- Supplied in a pack quantity of 50.
Reliable Circuit Isolation and Testing for Industrial Systems
Disconnect terminal blocks allow technicians to isolate individual circuits without removing field conductors, simplifying commissioning, measurement, troubleshooting and maintenance. The TE Connectivity ZS4-S-T2.3-R1 incorporates a blade disconnect mechanism that provides a clear method of opening the circuit while retaining secure screw-clamped conductor connections.
The integrated 2.3 mm test socket screws provide dedicated access for test equipment, making the terminal particularly useful in instrumentation and control applications where measurements may need to be performed regularly. Combined with its compact 6 mm DIN rail width and robust SNK Series construction, this configuration provides a practical solution for densely populated industrial panels.
Typical Applications
- Industrial control panels and automation cabinets.
- Instrumentation and measurement circuits.
- PLC input and output wiring.
- Process control and monitoring systems.
- Circuit isolation for commissioning and maintenance.
- Electrical testing and troubleshooting installations.
- Machine building and OEM control equipment.
Technical Specifications
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| Number of Connection Points | 24 | |
|---|---|---|
| Product Series | TE SNK | |
| Connection | Spring clamp | |
| Terminal Type | Disconnect / Test | |
| Number of Levels | 1 | |
| Colour | Grey | |
| Manufacturer | TE Connectivity / ENTRELEC | |
| Series | SNK Series | |
| Model | ZS4-S-T2.3-R1 | |
| Part number | 1SNK506312R0000 | |
| Product type | Screw clamp disconnect terminal block / switch block | |
| Block function | Disconnect | |
| Disconnect type | Blade | |
| Blade configuration | Closed orange blade | |
| Test connection | 2 × 2.3 mm test socket screws | |
| Connection method | Screw clamp | |
| Number of levels | 1 | |
| Number of positions | 2 | |
| Number of circuits | 1 | |
| Gauge type | A3-B3 | |
| Single flexible conductor capacity | 0.22–4 mm² | |
| Single rigid stranded conductor capacity | 0.2–4 mm² | |
| Single flexible conductor range | 24–10 AWG | |
| Single insulated ferrule capacity | 0.22–4 mm² | |
| Single non-insulated ferrule capacity | 0.22–4 mm² | |
| Two flexible conductor capacity | 0.2–1.5 mm² | |
| Two rigid stranded conductor capacity | 0.2–1.5 mm² | |
| Twin ferrule capacity | 0.22–1.5 mm² | |
| IEC rated current | 26 A | |
| IEC rated voltage | 400 V | |
| UL rated current | 26 A | |
| CSA rated voltage | 150 V | |
| UL / CSA maximum main-circuit operating voltage | 150 V | |
| Short-time withstand current (1 s) | 480 A | |
| IEC impulse withstand voltage | 6000 V | |
| Maximum dielectric withstand voltage | 1890 V | |
| Power loss | 0.8 W | |
| Product spacing | 6 mm | |
| Wire stripping length | 10.5 mm | |
| Tool size | 3.5 mm | |
| Mounting type | DIN rail | |
| DIN rail compatibility | TH35-7.5 / TH35-15 | |
| Housing material | Polyamide | |
| Colour | Grey | |
| Protection rating | IP20 | |
| Flammability rating | UL 94V-0 | |
| Dimensions (W × H × D) | 6 × 70.5 × 51.4 mm | |
| Product weight | 14.2 g | |
| Operating temperature range | -55 to +110 °C | |
| Installation temperature range | -5 to +40 °C | |
| Pack quantity | 50 |
Frequently Asked Questions
What is the TE Connectivity ZS4-S-T2.3-R1 1SNK506312R0000 used for?
The ZS4-S-T2.3-R1 is a screw clamp disconnect terminal block designed for connecting, isolating and testing industrial control, signal and instrumentation circuits.
What test connections does the ZS4-S-T2.3-R1 provide?
The terminal incorporates two test socket screws designed for 2.3 mm test connections, providing convenient access for measurement and diagnostic equipment.
What are the IEC electrical ratings of the ZS4-S-T2.3-R1?
The terminal has an IEC rated current of 26 A and an IEC rated voltage of 400 V, with a 6000 V impulse withstand rating.
What conductor sizes can the ZS4-S-T2.3-R1 accept?
The terminal accepts a single flexible conductor from 0.22–4 mm² or a single rigid stranded conductor from 0.2–4 mm², with additional configurations available for two conductors or ferrules.
How is the ZS4-S-T2.3-R1 mounted and how many are supplied?
The terminal mounts on standard TH35-7.5 or TH35-15 DIN rails, and part number 1SNK506312R0000 is supplied in a pack quantity of 50.
Trusted for Industrial Circuit Isolation and Testing
TE Connectivity ENTRELEC SNK Series disconnect terminal blocks provide panel builders, automation engineers and maintenance teams with compact, dependable circuit isolation and accessible testing points for industrial control and instrumentation systems.
