1snk505230r0000 – zs4-d2-or [pk=50] double deck block

Why Choose the TE Connectivity ENTRELEC ZS4-D2-OR Double-Deck Terminal Block?

The TE Connectivity ENTRELEC 1SNK505230R0000 is a ZS4-D2-OR double-deck feed-through terminal block designed to provide two independent circuits within a compact DIN rail footprint. Its two-level configuration provides 4 connection positions while occupying only 5.2 mm of DIN rail width, making it particularly useful where high wiring density is required.

The ZS4-D2-OR uses proven screw clamp connection technology and accepts flexible conductors from 0.22–4 mm² and rigid stranded conductors from 0.2–4 mm². The main circuits are rated at 29 A and 800 V to IEC specifications, with an 8 kV impulse withstand rating for dependable industrial power and signal connections.

Finished in orange for easy visual identification, the 1SNK505230R0000 has a durable polyamide housing and measures 5.2 mm wide × 70.4 mm high × 65.5 mm deep. Its IP20 protection, UL 94V-0 flammability classification and broad -55 to 110 °C operating temperature range make it well suited to professional industrial control and automation installations.

Key Advantages

• Double-deck design provides two independent circuits while conserving DIN rail space.
• 4 connection positions across 2 levels support high-density panel wiring.
• Compact 5.2 mm pitch helps maximise available control cabinet space.
• Proven screw clamp technology provides secure and serviceable conductor termination.
• Rated at 29 A and 800 V to IEC specifications.
• Accepts conductors up to 4 mm² per screw clamp.
• Distinctive orange housing supports easy circuit or functional identification.
• Compatible with standard TH35-7.5 and TH35-15 DIN rails.

Key Features

• TE Connectivity ENTRELEC SNK Series.
• ZS4-D2-OR double-deck terminal block.
• Feed-through function.
• Screw clamp connection technology.
• 2 independent circuits.
• 2 levels and 4 positions.
• 5.2 mm terminal spacing.
• Orange polyamide housing.
• DIN rail mounting.
• 10 mm conductor stripping length.
• IP20 protection rating.
• UL 94V-0 flammability classification.
• 50 pieces per manufacturer package.

Space-Efficient Double-Deck Connections for Industrial Control Panels

Double-deck terminal blocks allow panel builders to increase connection density without requiring a corresponding increase in DIN rail length. The ZS4-D2-OR places two electrically independent feed-through circuits within a terminal only 5.2 mm wide, providing an efficient solution for cabinets where wiring capacity and available space must be carefully balanced.

The combination of screw clamp connections, conductor capacities up to 4 mm², 29 A IEC current rating and 800 V IEC voltage rating makes the 1SNK505230R0000 suitable for a broad range of industrial power and signal circuits. Its orange housing also provides an immediate visual distinction where specific circuits or wiring functions need to be identified within a terminal strip.

Typical Applications

• High-density industrial control panel wiring.
• Double-level DIN rail terminal strips.
• PLC and automation control cabinets.
• Machine building and OEM equipment.
• Power and signal feed-through connections.
• Electrical switchboards and distribution assemblies.
• Instrumentation and process control systems.
• Applications requiring colour-coded terminal identification.