zs70-pe 70mm earth terminal

Why Choose the TE Connectivity ZS70-PE 1SNK522150R0000 Earth Terminal Block?

The TE Connectivity ZS70-PE 1SNK522150R0000 is a heavy-duty 70 mm² green and yellow screw-clamp earth terminal block designed for dependable protective-earth connections in industrial control panels, switchgear, machinery and power distribution equipment. Part of the TE Connectivity ENTRELEC SNK series, it combines large conductor capacity with a robust screw connection to the DIN rail for reliable electrical and mechanical earthing.

Designed specifically for protective-earth applications, the ZS70-PE provides one circuit, one level and two conductor positions. Its screw rail connection establishes a secure conductive path between the connected protective conductor and the DIN rail, supporting effective grounding in high-current industrial electrical assemblies.

The ZS70-PE has a rated wire size of 70 mm² / 2/0 AWG, accepting flexible conductors from 16–70 mm² and rigid stranded conductors from 16–95 mm². With a 22 mm terminal spacing and a short-time withstand current rating of 8400 A for 1 s, it provides substantial protective-earth capability for demanding installations.

Key Advantages

• Purpose-designed protective-earth terminal block for high-capacity industrial installations.
• Rated wire size of 70 mm² / 2/0 AWG.
• Accepts flexible conductors from 16–70 mm².
• Accepts rigid stranded conductors from 16–95 mm².
• Robust screw rail connection provides reliable electrical and mechanical contact with the DIN rail.
• High 8400 A short-time withstand current at 1 s.
• Green and yellow housing provides immediate protective-earth identification.
• 22 mm terminal spacing provides a compact format for its large conductor capacity.

Key Features

• TE Connectivity ENTRELEC SNK series.
• ZS70-PE ground / protective-earth terminal block.
• Screw-clamp conductor termination.
• Screw rail connection for protective-earth continuity.
• 1 circuit, 1 level and 2 positions.
• Flexible conductor capacity of 16–70 mm².
• Rigid stranded conductor capacity of 16–95 mm².
• Insulated and non-insulated ferrule capacity of 16–50 mm².
• 25 mm wire stripping length.
• 22 mm product spacing.
• Green and yellow polyamide housing.
• UL 94V-0 flammability-rated housing.
• Operating temperature range of -55 to +110 °C.

High-Capacity Protective-Earth Connectivity

The ZS70-PE is engineered to establish a reliable electrical and mechanical connection between large protective-earth conductors and the DIN rail. Its dedicated screw rail connection provides secure rail contact for demanding grounding applications, while the screw-clamp conductor terminals accommodate flexible conductors up to 70 mm² and rigid stranded conductors up to 95 mm².

With a short-time withstand current of 8400 A for 1 s, the ZS70-PE is suitable for high-capacity protective-earth systems where robust fault-current performance is required. The green/yellow housing provides immediate functional identification, while its 22 mm spacing enables large-conductor earth connections to be incorporated efficiently into industrial terminal assemblies.

Typical Applications

• Industrial control panels and automation cabinets.
• High-capacity protective-earth conductor termination.
• Switchgear and electrical distribution assemblies.
• Machine building and OEM electrical systems.
• Motor control centres and machinery panels.
• Industrial power distribution equipment.
• Process control and manufacturing installations.
• DIN-rail terminal assemblies requiring large protective-earth conductors.