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:
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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.
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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.
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Compact 1-Gang Design: A standard 86mm x 86mm footprint that accommodates any single-gang Metalclad Plus switch or socket (e.g., K2977ALM).
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38mm Depth: Provides a comfortable 38mm of internal space for wiring 13A sockets or 20A switches without overcrowding.
Safety & Compatibility Note:
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Integrated Earth Terminal: Includes a brass earth terminal as standard to ensure easy and reliable grounding.
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Standard Compatibility: While part of the Metalclad Plus range, it is compatible with all standard BS 1-gang frontplates.
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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 |




