1snk506310r0000 – 4mm disconnect terminal grey [pk=50]

Why Choose the TE Connectivity ZS4-S-R1 1SNK506310R0000 Disconnect Terminal Block?

The TE Connectivity ZS4-S-R1 1SNK506310R0000 is a compact 4 mm² screw-clamp disconnect terminal block designed for controlled circuit isolation in industrial control panels, switchgear, instrumentation and automation systems. Part of the TE Connectivity ENTRELEC SNK series, it combines reliable screw-clamp conductor termination with an integrated blade disconnect for straightforward testing, commissioning and maintenance.

The ZS4-S-R1 incorporates a hand- or screwdriver-operated disconnect blade, allowing technicians to open the electrical circuit without removing the connected conductors. Two jumper channels are aligned with compatible ZS4 feed-through terminal blocks, helping simplify alternate distribution and maintain an organised terminal-strip layout.

With a rated cross-section of 4 mm², the ZS4-S-R1 carries an IEC rated current of 26 A and an IEC rated voltage of 400 V. Its compact 6 mm spacing, grey polyamide housing and compatibility with standard TH35 DIN rails make it well suited to professional industrial panel building where reliable circuit isolation is required.

Key Advantages

• Integrated blade disconnect enables convenient circuit isolation without removing wiring.
• Blade can be operated by hand or with a screwdriver for straightforward maintenance.
• 4 mm² rated cross-section for industrial control, signal and power circuits.
• 26 A IEC current rating and 400 V IEC voltage rating.
• Two jumper channels align with ZS4 feed-through terminals for simplified distribution.
• Compact 6 mm terminal spacing helps maximise available DIN-rail capacity.
• Reliable screw-clamp connections provide secure and serviceable conductor termination.
• Supplied in a pack quantity of 50 for efficient panel-building requirements.

Key Features

• TE Connectivity ENTRELEC SNK series.
• ZS4-S-R1 disconnect terminal block.
• Blade-type disconnect for circuit isolation.
• Proven screw-clamp connection technology.
• 1 circuit, 1 level and 2 connection positions.
• Flexible conductor capacity of 0.22–4 mm².
• Rigid stranded conductor capacity of 0.2–4 mm².
• 10.5 mm wire stripping length.
• 6 mm product spacing.
• Compatible with TH35-7.5 and TH35-15 DIN rails.
• Grey polyamide housing.
• IP20 ingress protection.
• UL 94V-0 flammability-rated housing.
• Wide -55 to +110 °C operating temperature range.

Convenient Circuit Isolation for Industrial Wiring

Disconnect terminal blocks allow an electrical circuit to be opened at the terminal strip without disconnecting permanent field wiring. The ZS4-S-R1 uses an integrated blade that can be operated by hand or with a screwdriver, providing a convenient method of isolating circuits during commissioning, testing, troubleshooting and scheduled maintenance.

The terminal also incorporates two jumper channels aligned with compatible ZS4 feed-through terminal blocks, helping simplify alternate distribution arrangements. Combined with its 6 mm width and screw-clamp connections, this makes the ZS4-S-R1 a practical solution for compact and serviceable industrial terminal assemblies.

Typical Applications

• Industrial control panels and automation cabinets.
• Instrumentation and measurement circuits.
• PLC input and output wiring.
• Signal and control circuit isolation.
• Testing, commissioning and troubleshooting circuits.
• Electrical distribution and switchgear assemblies.
• Machine building and OEM electrical systems.
• Process automation and marshalling cabinets.