| Specification Attribute | 20449 (3M) | 21292 (4M) | 30511 (6M) | 20347 (12M) | 34569 (18M) |
| Brand | Anchor | Anchor | Anchor | Anchor | Anchor |
| Product Code | 20449 | 21292 | 30511 | 20347 | 34569 |
| Generic / Common Name | Surface Box | Surface Box | Surface Box | Surface Box | Surface Box |
| Modular Capacity | 3 Module (3M) | 4 Module (4M) | 6 Module (6M) | 12 Module (12M) | 18 Module (18M) |
| Configuration | Linear Horizontal | Linear Horizontal | Linear Horizontal | 6x2 Dual Matrix | 6x3 Triple Matrix |
| Envelope Dimensions (L x B) | 85 x 115 mm | 85 x 145 mm | 85 x 219 mm | 153 x 214 mm | 214 x 205 mm |
| Internal Working Depth | 48 mm | 48 mm | 40 mm | 40 mm | 50 mm (Deep) |
| Material | High-Impact Polymer | High-Impact Polymer | High-Impact Polymer | High-Impact Polymer | High-Impact Polymer |
| Thread Hardware | Metal/Brass Inserts | Metal/Brass Inserts | Metal/Brass Inserts | Metal/Brass Inserts | Metal/Brass Inserts |
| Electrical Insulation | Shock-Proof Body | Shock-Proof Body | Shock-Proof Body | Shock-Proof Body | Shock-Proof Body |
| Mounting Style | Direct On-Wall | Direct On-Wall | Direct On-Wall | Direct On-Wall | Direct On-Wall |
| Conduit / Raceway Entry | Multi-Knockouts | Multi-Knockouts | Multi-Knockouts | Multi-Knockouts | Multi-Knockouts |
| Best Used For | 16A Sockets & Starters | Vanity & Twin Points | Kitchen & Desk Strips | Master Switchboards | Central Hubs & Banks |
High-Impact Flame-Retardant Polymer: Engineered from durable, non-conductive engineering plastic that delivers high mechanical strength, shock protection, and total immunity to moisture and chemical corrosion.
Integrated Metal Thread Inserts: Equipped with factory-fitted brass/metal screw inserts across all sizes, preventing thread stripping and ensuring durable faceplate retention across routine servicing.
Comprehensive Modular Range (3M to 18M): Spans 3, 4, 6, 12, and 18-Module capacities, providing purpose-built surface mounting options for everything from isolated appliance points to high-density room consoles.
Application-Matched Working Depths: Engineered with calibrated depths (40 mm, 48 mm, and 50 mm) to deliver generous routing space for heavy conductors, multi-circuit looping, and deep modular mechanisms without crowding.
Fast, Clean Surface-Mount Retrofitting: Mounts directly onto masonry, drywall, timber, or partition columns without wall chasing, pairing neatly with external PVC mini-trunking and surface conduit raceways across Nepal.