MK K829ALM Metalclad Plus 1-Gang Surface Mounting Box (No Knockouts) – 38mm Deep

£2.95 £3.54 Inc VAT

The MK K829ALM is a rugged, 1-gang surface-mounted back box from the Metalclad Plus range. Unlike standard boxes, this version features no side knockouts, providing a completely plain, clean exterior for custom drilling or specialized cable entry. It is a tough, 38mm deep steel enclosure designed for the most demanding industrial environments.

7 in stock

Estimated Standard Delivery Apr 21, 2026 - Apr 22, 2026

Description

For installations requiring maximum durability and a tailored finish, the MK K829ALM Surface Box No Knockouts is the industry standard. This “plain” box is specifically engineered for areas where standard knockout positions don’t align with your conduit run, or where a more aesthetic, tamper-resistant surface mount is required.

Rugged Construction & Customization:

  • Plain Sided (No Knockouts): The sides are completely smooth without pre-punched holes. This allows installers to drill their own entry points exactly where needed, maintaining a tighter seal and a neater look for non-standard cable or conduit entries.

  • Heavy-Gauge Steel: Manufactured from premium-grade steel with a metallic powder-coated finish. It is highly resistant to impact, corrosion, and scratches, making it ideal for factories, workshops, and garages.

  • Compact 1-Gang Design: A standard 86mm x 86mm footprint that accommodates any single-gang Metalclad Plus switch or socket (e.g., K2977ALM).

  • 38mm Depth: Provides a comfortable 38mm of internal space for wiring 13A sockets or 20A switches without overcrowding.

Safety & Compatibility Note:

  • Integrated Earth Terminal: Includes a brass earth terminal as standard to ensure easy and reliable grounding.

  • Standard Compatibility: While part of the Metalclad Plus range, it is compatible with all standard BS 1-gang frontplates.

  • Not for Grid Plus: Please note, this specific spare box is designed for standard Metalclad accessories and is not suitable for mounting Grid Plus modules or modular data inserts.


Product Specifications

Feature Details
Brand MK Electric
Model K829ALM
Series Metalclad Plus
Mounting Type Surface Mount
Number of Gangs 1 Gang
Knockouts None (Plain Sided)
Depth 38mm
Material Heavy-Gauge Steel
Finish Metallic Silver/Grey Powder Coat
Dimensions 86mm (H) x 86mm (W) x 38mm (D)
Standard BS 5733