TE Connectivity ES4-D2-SF1 1SNK508911R0000 is a dark grey polyamide insulating end section cover for compatible ENTRELEC SNK ZS4-D2-SF1 and ZS4-D2-SF1-R double-deck fused screw clamp terminal blocks.
Why Choose the TE Connectivity ES4-D2-SF1 1SNK508911R0000 Double-Deck Fused End Plate?
The TE Connectivity ES4-D2-SF1 1SNK508911R0000 is a dark grey insulating end section cover designed specifically for compatible ENTRELEC SNK screw clamp terminal blocks. It is used to close and insulate the exposed side of compatible double-deck fused terminal assemblies, providing a neat, protected and professionally finished DIN rail installation.
Designed for the ZS4-D2-SF1 and ZS4-D2-SF1-R terminal block families, the ES4-D2-SF1 matches their profile while adding only 2.5 mm to the width of the terminal assembly. This makes it an important accessory for completing fused double-deck terminal groups without unnecessarily increasing the overall DIN rail footprint.
Manufactured from durable polyamide, the ES4-D2-SF1 provides IP20 protection and a UL 94V-0 flammability rating. Its wide operating temperature range of -55 to +110 °C makes it suitable for demanding industrial control, automation and machinery applications where reliable terminal insulation is required.
Key Advantages
Purpose-designed end section cover for compatible ENTRELEC SNK double-deck fused terminal blocks.
Compatible with ZS4-D2-SF1 and ZS4-D2-SF1-R screw clamp terminals.
Provides an insulating side wall at the end of compatible modular terminal assemblies.
Only 2.5 mm wide, minimising additional DIN rail space.
Durable polyamide construction for industrial electrical environments.
UL 94V-0 flammability rating for professional panel-building applications.
IP20 protection when used as part of the compatible terminal assembly.
Wide -55 to +110 °C operating temperature range.
Key Features
TE Connectivity ENTRELEC SNK series.
ES4-D2-SF1 end section cover.
Manufacturer part number 1SNK508911R0000.
Designed for 4 mm²-class double-deck fused terminal assemblies.
Compatible with screw clamp terminal blocks.
Suitable for ZS4-D2-SF1.
Suitable for ZS4-D2-SF1-R.
Dark grey insulating construction.
Polyamide primary material.
2.5 mm product spacing.
84.5 mm product height.
63.1 mm product depth.
IP20 degree of protection.
UL 94V-0 flammability rating.
Insulating Double-Deck Fused Terminal Assemblies
Modular terminal blocks can have an exposed side at the end of an assembled terminal group. An appropriate end section closes this side and provides the required insulating barrier. The TE Connectivity ES4-D2-SF1 is shaped specifically for compatible ZS4-D2-SF1 double-deck fused terminal blocks, allowing the completed assembly to maintain its intended profile and insulation.
At only 2.5 mm wide, the ES4-D2-SF1 adds minimal space to the terminal group while its polyamide construction provides a durable insulating surface. Its compatibility with both ZS4-D2-SF1 and ZS4-D2-SF1-R configurations makes it a dedicated finishing accessory for these ENTRELEC SNK fused terminal assemblies.
Typical Applications
ZS4-D2-SF1 double-deck fused terminal assemblies.
ZS4-D2-SF1-R terminal block assemblies.
Industrial control panels and electrical cabinets.
Fused control and signal circuits.
PLC and automation system wiring.
Machine control and production equipment.
Instrumentation and monitoring circuits.
OEM machinery and professional panel building.
Technical Specifications
Manufacturer
TE Connectivity
Brand / product family
ENTRELEC
Series
SNK
Model
ES4-D2-SF1
Manufacturer part number
1SNK508911R0000
EAN
3472595089116
Product type
Terminal block insulating accessory
Accessory type
End section cover / end plate
Function
End section
Terminal size family
4 mm²
Terminal type
End plate
Compatible connection technology
Screw clamp
Compatible terminal
ZS4-D2-SF1
Primary material
Polyamide
Colour
Dark grey
Product width
2.5 mm
Product spacing
2.5 mm
Product height
84.5 mm
Product depth / length
63.1 mm
Product weight
approx. 5–5.98 g
Protection rating
IP20
Flammability rating
UL 94V-0
Installation temperature range
-5 to +40 °C
Operating temperature range
-55 to +110 °C
Compatible DIN rail systems when fitted with suitable terminals
G32, TH35-7.5, TH35-15 and TH15-5.5
Frequently Asked Questions
What is the TE Connectivity ES4-D2-SF1 1SNK508911R0000?
The ES4-D2-SF1 is a polyamide insulating end section cover designed to close and insulate the exposed side of compatible ENTRELEC SNK screw clamp terminal block assemblies.
Which terminal blocks are compatible with the ES4-D2-SF1?
The ES4-D2-SF1 is designed for use with the ZS4-D2-SF1 and ZS4-D2-SF1-R double-deck fused terminal blocks.
What are the dimensions of the ES4-D2-SF1?
The end section is approximately 2.5 mm wide, 84.5 mm high and 63.1 mm deep, allowing it to match the profile of its compatible terminal blocks while adding minimal DIN rail width.
What material is the 1SNK508911R0000 manufactured from?
The ES4-D2-SF1 is manufactured from polyamide insulating material and has a UL 94V-0 flammability rating.
What colour is the ES4-D2-SF1?
The TE Connectivity ES4-D2-SF1 is supplied in dark grey.
What is the operating temperature range of the ES4-D2-SF1?
The end section is specified for an operating temperature range of -55 to +110 °C, with an installation temperature range of -5 to +40 °C.
Why is an end plate required on a double-deck fused terminal assembly?
An end plate closes the exposed side of a compatible modular terminal block, providing an insulating barrier and finished side wall at the end of the terminal group.
Trusted for Professional Terminal Block Assemblies
TE Connectivity ENTRELEC SNK terminal block accessories provide coordinated insulation and finishing solutions for professional industrial wiring, helping panel builders, automation engineers and machine manufacturers create safe, organised and maintainable terminal assemblies.
Manufacturer
TE Connectivity
Brand / product family
ENTRELEC
Series
SNK
Model
ES4-D2-SF1
Manufacturer part number
1SNK508911R0000
EAN
3472595089116
Product type
Terminal block insulating accessory
Accessory type
End section cover / end plate
Function
End section
Terminal size family
4 mm²
Terminal type
End plate
Compatible connection technology
Screw clamp
Compatible terminal
ZS4-D2-SF1
Primary material
Polyamide
Colour
Dark grey
Product width
2.5 mm
Product spacing
2.5 mm
Product height
84.5 mm
Product depth / length
63.1 mm
Product weight
approx. 5–5.98 g
Protection rating
IP20
Flammability rating
UL 94V-0
Installation temperature range
-5 to +40 °C
Operating temperature range
-55 to +110 °C
Compatible DIN rail systems when fitted with suitable terminals
G32, TH35-7.5, TH35-15 and TH15-5.5
No documents available for this product.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...