1snk508411r0000 – zs4-sf1-t2 [pk=50] fuse terminal block

Why Choose the TE Connectivity ZS4-SF1-T2 1SNK508411R0000 Fuse Terminal Block?

The TE Connectivity ZS4-SF1-T2 1SNK508411R0000 is a compact 4 mm² screw clamp fuse terminal block with integrated test facilities, designed to combine conductor termination, circuit protection and convenient electrical testing within industrial control panels. Part of the TE Connectivity ENTRELEC SNK series, it provides an accessible fused connection point for power and signal circuits while maintaining an organised DIN rail installation.

The ZS4-SF1-T2 uses proven screw clamp connection technology and provides two connection positions on a single level. It accepts conductors up to 4 mm² and accommodates 5 × 20 mm and 5 × 25 mm cartridge fuses. Built-in test socket screws provide convenient access for measurement and diagnostic work without requiring conductors to be disconnected.

With an IEC current rating of 6.3 A, an IEC voltage rating of 630 V and compact 8 mm terminal spacing, the ZS4-SF1-T2 provides dependable performance for protected industrial circuits. Its grey and dark grey polyamide housing, IP20 protection and TH35 DIN rail compatibility make it a practical solution for panel builders, machine manufacturers and automation engineers.

Key Advantages

• Combines terminal connection, fuse protection and convenient test access within one DIN rail component.
• Accepts both 5 × 20 mm and 5 × 25 mm cartridge fuses.
• Integrated test socket screws simplify circuit measurement and diagnostics.
• 6.3 A IEC rated current and 630 V IEC rated voltage.
• Supports conductors up to 4 mm² with reliable screw clamp termination.
• Supplied in a pack quantity of 50 for panel building and production requirements.

Key Features

• TE Connectivity ENTRELEC SNK ZS4-SF1-T2 fuse terminal block.
• 4 mm² conductor capacity.
• Suitable for 5 × 20 mm and 5 × 25 mm cartridge fuses.
• Built-in test socket screws for convenient electrical testing.
• Screw clamp connection technology.
• Single-level configuration with two positions.
• 6.3 A IEC current rating.
• 630 V IEC voltage rating.
• 8 mm product spacing.
• Grey and dark grey polyamide housing.
• IP20 protection rating.
• UL 94V-0 flammability rating.

Integrated Fuse Protection with Convenient Test Access

Fuse terminal blocks combine conductor termination with replaceable overcurrent protection, helping simplify industrial control panel construction by locating circuit protection directly alongside the associated wiring. The ZS4-SF1-T2 adds built-in test socket screws, allowing technicians to access the circuit conveniently for measurement, commissioning and diagnostic work while keeping the connected conductors securely terminated.

The ZS4-SF1-T2 supports both 5 × 20 mm and 5 × 25 mm cartridge fuses and conductors up to 4 mm². Its 6.3 A IEC current rating, 630 V IEC voltage rating and 8 mm terminal spacing make it particularly suitable for fused power, control, signal and instrumentation circuits where accessible protection and testing are required.

Typical Applications

• Industrial control panels and electrical cabinets.
• Fused power, control and auxiliary circuits.
• PLC input, output and control wiring.
• Instrumentation, measurement and test circuits.
• Machine building and OEM automation equipment.
• Switchgear and protected signal distribution systems.