TE Connectivity ES4-T3 1SNK505961R0000 is a dark grey polyamide end section cover for compatible ENTRELEC SNK Series screw clamp terminal blocks, providing compact insulation for industrial DIN rail terminal assemblies.
Why Choose the TE Connectivity ES4-T3 1SNK505961R0000 Terminal End Plate?
The TE Connectivity ES4-T3 1SNK505961R0000 is a durable end section cover for screw clamp terminal blocks designed to provide insulation and a finished end surface within DIN rail terminal assemblies. Part of the TE Connectivity ENTRELEC SNK Series, this accessory is specifically designed for use with compatible multi-level screw clamp terminal blocks, including the ZS4-T3 family.
Manufactured from robust polyamide, the ES4-T3 provides dependable electrical insulation while helping protect exposed terminal assembly surfaces. Its slim 0.8 mm thickness adds minimal width to the terminal block installation, supporting compact and space-efficient control-panel layouts.
The ES4-T3 is supplied in dark grey and is designed for demanding industrial environments, with an operating temperature range of -55 to +110 °C. Its material is rated to UL 94V-0 for flammability, while the accessory provides an IP20 protection rating when incorporated into the appropriate terminal assembly.
Key Advantages
Purpose-designed end section cover for compatible SNK Series screw clamp terminal blocks.
Provides a neat and electrically insulated termination to the terminal block assembly.
Compact 0.8 mm thickness minimises additional DIN rail space requirements.
Durable polyamide construction for industrial electrical installations.
Wide -55 to +110 °C operating temperature range.
UL 94V-0 flammability-rated material supports demanding control-panel applications.
Designed as part of the modular TE Connectivity ENTRELEC SNK Series terminal system.
Key Features
TE Connectivity ENTRELEC SNK Series.
ES4-T3 end section cover.
Designed for compatible screw clamp terminal blocks.
Suitable for the ZS4-T3 terminal block family.
0.8 mm product spacing / thickness.
Polyamide insulating material.
Dark grey finish.
IP20 protection rating.
UL 94V-0 flammability rating.
Operating temperature range from -55 to +110 °C.
Reliable Insulation for Terminal Block Assemblies
End section covers are used to close exposed sides of modular terminal block assemblies, providing insulation and helping create a safe, orderly installation. The TE Connectivity ES4-T3 is shaped for compatible SNK Series screw clamp terminals, allowing the accessory to integrate neatly with the terminal profile without unnecessarily increasing panel space requirements.
Its polyamide construction, wide operating temperature range and UL 94V-0 flammability rating make the ES4-T3 suitable for industrial control cabinets, machinery and automation equipment. When combined with compatible SNK Series terminal blocks and accessories, it supports organised, professional and maintainable DIN rail wiring installations.
Typical Applications
Industrial control panels and electrical cabinets.
DIN rail terminal block assemblies.
Machine building and OEM electrical systems.
PLC and industrial automation panels.
Power distribution and control wiring.
Multi-level terminal block installations.
Electrical panel building and maintenance.
Technical Specifications
Manufacturer
TE Connectivity / ENTRELEC
Series
SNK Series
Model
ES4-T3
Part number
1SNK505961R0000
Product type
Terminal block end section cover / end plate
Insulating accessory type
End section cover
Compatible terminal type
Screw clamp terminal blocks
For use with
ZS4-T3 terminal blocks and compatible SNK Series assemblies
Terminal size
4 mm² class
Primary material
Polyamide
Colour
Dark grey
Product spacing / thickness
0.8 mm
Product height
97 mm
Product depth
81.2 mm
Product weight
4.2 g
Operating temperature range
-55 to +110 °C
Installation temperature range
-5 to +40 °C
Protection rating
IP20
Flammability rating
UL 94V-0
Connection system compatibility
Screw connection
Frequently Asked Questions
What is the TE Connectivity ES4-T3 1SNK505961R0000 used for?
The ES4-T3 is an end section cover used to close and insulate the exposed side of compatible TE Connectivity ENTRELEC SNK Series screw clamp terminal block assemblies.
Which terminal blocks are compatible with the ES4-T3?
The ES4-T3 is designed for compatible SNK Series screw clamp terminal blocks and is specifically associated with the ZS4-T3 terminal block family.
What material is the ES4-T3 made from?
The end section cover is manufactured from polyamide with a UL 94V-0 flammability rating.
What is the operating temperature range of the ES4-T3?
The ES4-T3 is rated for operation from -55 to +110 °C, making it suitable for a wide range of industrial environments.
How thick is the ES4-T3 end section?
The ES4-T3 has a product spacing or thickness of approximately 0.8 mm, allowing it to provide terminal-end insulation while adding very little width to the assembly.
Trusted for Professional Terminal Block Installations
TE Connectivity ENTRELEC SNK Series terminal accessories are designed to complement modular terminal block installations, helping panel builders and automation engineers create insulated, organised and dependable industrial wiring assemblies.
Manufacturer
TE Connectivity / ENTRELEC
Series
SNK Series
Model
ES4-T3
Part number
1SNK505961R0000
Product type
Terminal block end section cover / end plate
Insulating accessory type
End section cover
Compatible terminal type
Screw clamp terminal blocks
For use with
ZS4-T3 terminal blocks and compatible SNK Series assemblies
Terminal size
4 mm² class
Primary material
Polyamide
Colour
Dark grey
Product spacing / thickness
0.8 mm
Product height
97 mm
Product depth
81.2 mm
Product weight
4.2 g
Operating temperature range
-55 to +110 °C
Installation temperature range
-5 to +40 °C
Protection rating
IP20
Flammability rating
UL 94V-0
Connection system compatibility
Screw connection
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
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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...