1snk506330r0000 – zs4-s-r1-or [pk=50]orange switch block

Why Choose the TE Connectivity ZS4-S-R1-OR 1SNK506330R0000 Orange Switch Terminal Block?

The TE Connectivity ZS4-S-R1-OR 1SNK506330R0000 is a compact screw clamp disconnect terminal block designed for reliable circuit isolation in industrial control panels, machinery and automation systems. Part of the ENTRELEC SNK series, this orange terminal combines secure screw clamp conductor termination with an integrated blade disconnect for convenient switching and isolation.

The ZS4-S-R1-OR provides two connection positions, one circuit and one level within a 6 mm terminal spacing. Its blade disconnect allows the electrical circuit to be opened without removing the connected conductors, making it particularly useful for commissioning, troubleshooting, testing and maintenance applications.

With an IEC rating of 26 A and 400 V, the ZS4-S-R1-OR accommodates flexible conductors from 0.22–4 mm² and rigid stranded conductors from 0.2–4 mm². Its orange polyamide housing, IP20 protection and compatibility with standard TH35 DIN rails provide a dependable solution for professional industrial wiring. The 1SNK506330R0000 is supplied in a pack of 50.

Key Advantages

• Integrated blade disconnect enables convenient circuit isolation without removing conductors.
• 26 A IEC current rating for industrial control and instrumentation circuits.
• 400 V IEC voltage rating supports a wide range of electrical applications.
• Accepts flexible conductors up to 4 mm² with secure screw clamp termination.
• Compact 6 mm terminal spacing supports efficient use of DIN rail space.
• Orange housing provides clear visual differentiation within organised terminal assemblies.
• Compatible with standard TH35 DIN rails for straightforward panel installation.
• Supplied in a convenient pack quantity of 50 for professional panel building.

Key Features

• TE Connectivity ENTRELEC SNK series.
• ZS4-S-R1-OR screw clamp disconnect terminal block.
• Blade-type disconnect mechanism.
• 26 A IEC current rating.
• 400 V IEC voltage rating.
• Two positions, one circuit and one level.
• 0.22–4 mm² flexible conductor capacity.
• 0.2–4 mm² rigid stranded conductor capacity.
• 6 mm product spacing.
• Orange polyamide insulating housing.
• Compatible with TH35-7.5 and TH35-15 DIN rails.
• IP20 ingress protection.
• UL 94V-0 housing flammability rating.

Reliable Circuit Isolation for Industrial Control Systems

Disconnect terminal blocks provide a clearly defined point at which an electrical circuit can be opened without removing the connected conductors. The TE Connectivity ZS4-S-R1-OR uses an integrated blade disconnect together with dependable screw clamp connections, allowing technicians to isolate circuits efficiently during commissioning, fault finding and maintenance.

The compact ENTRELEC SNK design combines a 6 mm terminal spacing with conductor capacity up to 4 mm² and an IEC rating of 26 A at 400 V. Its orange housing also enables straightforward visual identification within mixed terminal assemblies, helping panel builders create organised and serviceable industrial wiring systems.

Typical Applications

• Industrial control panel disconnect circuits.
• PLC and automation control wiring.
• Instrumentation and signal isolation circuits.
• Machine control cabinets and production equipment.
• Electrical testing and commissioning circuits.
• Electrical distribution and switchgear assemblies.
• Maintenance and troubleshooting isolation points.
• OEM machinery and professional panel building.