ZS25-BL – 25mm SCREW TERMINAL BLUE

Why Choose the TE Connectivity ZS25-BL 1SNK512020R0000 Screw Terminal?

The TE Connectivity ZS25-BL 1SNK512020R0000 is a high-capacity 25 mm² screw clamp feed-through terminal block designed for reliable power and signal connections in industrial electrical installations. Part of the TE Connectivity ENTRELEC SNK Series, this blue terminal combines substantial conductor capacity with a compact 12 mm pitch for efficient DIN rail panel construction.

The ZS25-BL accepts flexible and rigid stranded conductors from 0.5–25 mm², with rigid conductor capability extending to 3 AWG. Its screw clamp technology provides secure conductor retention, while the two-position, single-level feed-through configuration creates a straightforward connection between incoming and outgoing wiring.

With an IEC rated voltage of 1000 V and an IEC rated current of 76 A, the ZS25-BL is suitable for demanding industrial distribution applications, including installations requiring high-voltage capability. Its polyamide housing provides IP20 protection and a UL 94V-0 flammability rating, with an operating temperature range from -55 to +110 °C.

Key Advantages

• High-capacity 25 mm² feed-through terminal for industrial power and signal wiring.
• 76 A IEC rated current supports demanding electrical circuits.
• 1000 V IEC rated voltage makes the terminal suitable for high-voltage industrial applications.
• 100 A UL and CSA current ratings for applicable installations.
• Accepts flexible and rigid stranded conductors from 0.5–25 mm².
• Compact 12 mm pitch provides high conductor capacity while conserving DIN rail space.
• Blue housing provides convenient circuit and conductor identification.
• Secure screw clamp connection supports reliable long-term conductor termination.

Key Features

• TE Connectivity ENTRELEC SNK Series.
• ZS25-BL screw clamp feed-through terminal block.
• 25 mm² conductor class.
• Blue housing for circuit identification.
• Screw clamp connection technology.
• Single-level, two-position, one-circuit configuration.
• 12 mm product spacing.
• 76 A IEC rated current.
• 1000 V IEC rated voltage.
• 100 A UL and CSA current ratings.
• 600 V UL/CSA maximum main-circuit operating voltage.
• 1920 A short-time withstand current for 1 s.
• 8000 V IEC impulse withstand voltage.
• Durable polyamide housing.
• IP20 protection rating.
• UL 94V-0 flammability rating.
• Compatible with TH35-7.5 and TH35-15 DIN rails.

Reliable High-Capacity Feed-Through Connections

Feed-through terminal blocks provide a secure and organised method of joining incoming and outgoing conductors within control panels, distribution assemblies and industrial machinery. The TE Connectivity ZS25-BL provides this function for conductors up to 25 mm², using proven screw clamp technology to maintain a dependable electrical and mechanical connection.

Its combination of 76 A IEC current capacity, 1000 V IEC voltage rating and 12 mm modular spacing makes the ZS25-BL particularly suitable where higher-power conductors must be terminated without excessive DIN rail space. The blue housing also enables clear identification within colour-coded terminal assemblies.

Typical Applications

• Industrial control panels and automation cabinets.
• Power distribution and high-current terminal assemblies.
• Machine building and OEM electrical equipment.
• Motor control centres and switchgear.
• Industrial power and signal circuits.
• Renewable-energy and solar electrical installations.
• Process control and manufacturing equipment.
• DIN rail wiring requiring blue 25 mm² feed-through terminals.