Is this suitable for 4mm swa?

Hello, M20s are suitable for 4mm2 2 & 3 core, 4mm2 4 core would be an M20. Hope this helps

Will the M20s size be ok for 3 core 10mm armoured cable ?

A 3 Core 10mm cable has a nominal outer diameter of 19.5mm. The CW20s will accept a cable with Max Outer Diameter of 15.5mm, so would be too small. The CW20 will accept a cable with Max Outer Diameter of 19.5mm so should be be suitable. Please note; cable diameters vary from manufacturer to manufacturer so we would recommend measuring the OD of your cable with callipers first to confirm.

Is this suitable for 6mm 3core armoured?

Hi Tom. I'd recommend the next size up (select CW20 size variation). The nominal OD (outer diameter) of a 6mm 3 Core cable 16.6mm. This CW20s kit is only suitable for cables with an OD between 12.8mm and 15.5mm.

Hoping somone can help which screw and nut can I use for the earth tag to connect the earth wires

The brass 2 circle piece is for the earth cable.

Cw20 | Desertcart Seychelles

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Description

🔌 Secure your connection, protect your space — the CW20 cable gland kit means business.

TRUSTED BY PROS - Rated 4.6 stars with 170+ reviews, this kit is a top choice for electricians prioritizing quality and safety in outdoor and public space projects.
PRECISION M 20 FIT - Engineered for seamless compatibility with 15.5-19.5mm SWA cables, ensuring a secure and professional installation every time.
SAFETY FIRST DESIGN - Equipped with dip-moulded low smoke, low halogen PVC shrouds that minimize toxic fumes and enhance onsite safety compliance.
COMPLETE INSTALLATION KIT - Includes glands, locknuts, earth tags, and shrouds—everything you need for a hassle-free, code-compliant cable termination.
ROBUST BRASS CONSTRUCTION - Crafted from premium extrusion brass for unmatched durability, corrosion resistance, and long-term reliability in demanding environments.

The CW20 Cable Gland Kit by ArmaKit is a professional-grade solution designed for SWA armoured cables sized 15.5 to 19.5mm. Featuring precision M20 sizing, high-quality brass construction, and safety-enhancing low smoke, low halogen PVC shrouds, this kit ensures reliable cable retention and earth continuity. Supplied as a complete pack with glands, locknuts, earth tags, and shrouds, it meets stringent health and safety standards, making it ideal for outdoor sockets and junction boxes. Highly rated by professionals, it delivers durability, safety, and ease of installation.

Specifications

ASIN	B08DJ8WG5N
Best Sellers Rank	5,024 in DIY & Tools ( See Top 100 in DIY & Tools ) 19 in Electrical Wire
Brand	ArmaKit
Colour	Black, Gold
Country Of Origin	India
Customer Reviews	4.6 4.6 out of 5 stars (175)
Manufacturer	Remora Electrical
Manufacturer Part Number	HU-XI-201
Material	Brass
Number Of Wires	7
Strands	Multiple strands
Unit Count	2.0 count
Voltage	1000 Volts

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