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1snk508413r0000 - zs4-sf1-r2 [pk=50] fuse terminal block

1snk508413r0000 – zs4-sf1-r2 [pk=50] fuse terminal block

TE Connectivity ENTRELEC 1SNK508413R0000 ZS4-SF1-R2 is an 8 mm screw clamp DIN rail fuse terminal block for 5 × 20 mm and 5 × 25 mm fuses with 6.3 A IEC current rating, 24–60 V DC blown-fuse indication and integrated 2 mm test sockets.

SKU: 1SNK508413R0000Alt SKU: ZS4-SF1-R2 [pk=50] Fuse Terminal BlockMPN: 1SNK508413R0000
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List Price £11.44 ex VAT
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50 in stock (can be backordered)

£11.44

Why Choose the TE Connectivity ENTRELEC ZS4-SF1-R2 Fuse Terminal Block?

The TE Connectivity ENTRELEC 1SNK508413R0000 ZS4-SF1-R2 is a professional screw clamp fuse terminal block designed to combine circuit protection, connection and fault indication within a compact DIN rail-mounted format. Part of the ENTRELEC SNK series, it is suitable for industrial control panels, machinery and automation systems where reliable fused circuit distribution is required.

The ZS4-SF1-R2 accommodates 5 × 20 mm and 5 × 25 mm fuses and incorporates a 24–60 V DC blown-fuse indicator for rapid identification of a failed fuse. Integrated 2 mm test socket screws provide convenient access for electrical testing and troubleshooting without compromising the organised terminal block installation.

With an IEC current rating of 6.3 A, an IEC voltage rating of 630 V for the terminal block and conductor capacity up to 4 mm², the ZS4-SF1-R2 provides dependable connectivity for industrial circuits. Its 8 mm spacing, DIN rail mounting and compact 59.7 × 8 × 45.6 mm format make it particularly suitable for space-conscious electrical panel designs.

Key Advantages

  • Combines fuse protection and terminal connection within a single DIN rail-mounted device.
  • Suitable for 5 × 20 mm and 5 × 25 mm fuses.
  • Integrated 24–60 V DC blown-fuse indicator helps identify defective circuits quickly.
  • Built-in 2 mm test socket screws simplify electrical testing and diagnostics.
  • 6.3 A IEC current rating for industrial control and protection applications.
  • Accepts conductors up to 4 mm² using proven screw clamp connection technology.
  • Compact 8 mm terminal spacing supports efficient use of DIN rail space.

Key Features

  • TE Connectivity ENTRELEC SNK series.
  • ZS4-SF1-R2 fuse terminal block.
  • Screw clamp connection technology.
  • 2 positions and 1 circuit.
  • Single-level terminal block construction.
  • Supports 5 × 20 mm and 5 × 25 mm fuses.
  • 24–60 V DC blown-fuse indication.
  • Integrated 2 mm test socket screws.
  • TH35-7.5 and TH35-15 DIN rail mounting.
  • Grey and dark grey polyamide housing.
  • Wide -55 °C to +110 °C operating temperature range.

Integrated Fuse Protection for Industrial Control Circuits

Fuse terminal blocks combine conductor termination and replaceable overcurrent protection in a modular DIN rail format. This allows individual control and auxiliary circuits to be protected while keeping fuse access and wiring together in an organised panel assembly. A failed fuse can be replaced without changing the terminal block or disturbing neighbouring circuit connections.

The ZS4-SF1-R2 adds a 24–60 V DC blown-fuse indicator to make fault identification faster during operation and maintenance. Integrated test sockets further simplify circuit measurement and troubleshooting, making the terminal particularly useful in automation panels and machinery where efficient diagnostics and minimal downtime are important.

Typical Applications

  • Industrial control and automation panels.
  • PLC input and output circuit protection.
  • Machine control systems.
  • Power supply and auxiliary circuit distribution.
  • Instrumentation and process control panels.
  • Switchgear and electrical distribution equipment.
  • OEM machinery and electrical panel building.

Technical Specifications

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Number of Connection Points 24
Product Series TE SNK
Connection Spring clamp
Terminal Type Fuse
Number of Levels 1
Manufacturer TE Connectivity / ENTRELEC
Series SNK
Model ZS4-SF1-R2
Manufacturer part number 1SNK508413R0000
Pack quantity 50
Product type Fuse terminal block
Connection technology Screw clamp
Block function Fuse
Fuse size 5 × 20 mm / 5 × 25 mm
Blown-fuse indicator 24–60 V DC
Test connection 2 mm test socket screws
Number of circuits 1
Number of positions 2
Number of levels 1
IEC rated current 6.3 A
UL rated current 10 A
CSA rated current 6.3 A
IEC voltage rating 630 V
UL / CSA operating voltage 300 V
Dielectric withstand voltage 2200 V
IEC impulse withstand voltage 8000 V
Rated conductor cross-section 4 mm²
Flexible conductor capacity 0.22–4 mm²
Rigid stranded conductor capacity 0.2–4 mm²
Wire stripping length 11 mm
Tool size 3.5 mm
Product spacing 8 mm
Height 59.7 mm
Length 45.6 mm
Depth 45.6 mm
Product weight 13.3 g
Housing material Polyamide
Colour Grey and dark grey
Mounting DIN rail
DIN rail types TH35-7.5 / TH35-15
Operating temperature -55 °C to +110 °C
Installation temperature -5 °C to +40 °C
Colour Grey

Frequently Asked Questions

What is the TE Connectivity 1SNK508413R0000 ZS4-SF1-R2 used for?

The ZS4-SF1-R2 is a DIN rail-mounted fuse terminal block designed to provide conductor termination and replaceable fuse protection for industrial control, automation and electrical distribution circuits.

What fuse sizes does the ZS4-SF1-R2 accept?

The ZS4-SF1-R2 is designed for 5 × 20 mm and 5 × 25 mm fuses. The fuse is installed in the terminal block to provide replaceable circuit protection.

Does the ZS4-SF1-R2 have a blown-fuse indicator?

Yes. This version incorporates a 24–60 V DC blown-fuse indicator, allowing a failed fuse and affected circuit to be identified more quickly.

What current and voltage ratings does the ZS4-SF1-R2 have?

The terminal block has an IEC current rating of 6.3 A and an IEC voltage rating of 630 V. Ratings under UL and CSA standards differ according to the applicable certification requirements.

What wire sizes can be connected to the ZS4-SF1-R2?

The screw clamp terminals accept flexible conductors from 0.22–4 mm² and rigid stranded conductors from 0.2–4 mm², providing flexibility for industrial panel wiring.

Reliable Circuit Connectivity from TE Connectivity ENTRELEC

TE Connectivity ENTRELEC SNK fuse terminal blocks combine dependable screw clamp connections, modular DIN rail installation and accessible circuit protection to support organised, serviceable and reliable industrial electrical panels.

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