
The Heizka ELV Box Round Series is a wall-mounted enclosure for extra-low-voltage (ELV) switches, sockets and smart-home control panels, built around the same aluminum-and-steel construction as Heizka’s Platinum Crystal Series but finished with softer, rounded panel styling. A CNC-finished, anodised aluminium frame is paired with a flame-retardant injection-molded bottom frame and a choice of slate or toughened tempered glass panels, so the box blends into interiors that call for a gentler design language while keeping the electronics inside fully enclosed and protected. Every unit is backed by Heizka’s warranty and built to the same manufacturing standard as the rest of Heizka’s ELV Box range.
Features
The ELV Box Round Series is built around the same manufacturing choices that make the Platinum Crystal Series durable day to day — a stiffer frame, a panel that resists scratching, and a hinge that keeps closing smoothly after years of use:
- ✓Aluminum extrusion frame with CNC finishing, anodic oxidation and laser printing for a durable, precise edge
- ✓Toughened (tempered) glass panel option, CNC cut, polished and finished with double screen printing
- ✓Chamfered (rounded) edges on the frame for safety and comfortable handling
- ✓Flame-retardant injection-molded bottom frame for a more secure, worry-free base
- ✓Box body formed from 1.0 mm cold-rolled steel via CNC stamping for a rigid, stable shell
- ✓CNC bending and spot welding with environmentally friendly powder coating on the steel body
- ✓Aluminum hinge made from aviation-grade aluminum for long-term durability
- ✓Hinge opens and closes repeatedly without deformation, even after extended daily use
- ✓Panel finish options: slate panel or toughened tempered glass, in a rounded panel silhouette
- ✓Complete box configuration: box body, socket, panel and U-type single-layer device bracket included
Standard Compliance
Heizka’s ELV Box range is manufactured under the same RoHS-compliant process used across Heizka’s electronic enclosures. Contact Heizka for additional product-specific test certificates if your project requires them.

Ordering Information
| Item # | Panel Finish |
|---|---|
| HEBSR16SW | Slate panel, white |
| HEBSR16SB | Slate panel, black |
| HEBSR16BG | Tempered glass panel, black frame |
| HEBSR16WG | Tempered glass panel, white frame |
Note: all four item numbers share the same box body, aluminum frame and device bracket — only the panel material and colour (S = slate, G = tempered glass; B = black, W = white) differ. Contact Heizka to confirm exact external dimensions for your installation.
Technical Specifications
Construction & Materials
| Box body material | 1.0 mm cold-rolled steel, CNC stamping formed |
| Body finish | CNC bending, spot welding, environmental powder coating |
| Frame material | Aluminum extrusion, CNC finishing, anodic oxidation, laser printing |
| Frame edges | Chamfer ground for safety and comfort |
| Bottom frame | Flame-retardant injection-molded plastic |
| Hinge | Aviation-grade aluminum, deformation-free after repeated use |
Panel & Configuration
| Glass panel finish (HEBSR16BG / HEBSR16WG) | Toughened glass, CNC cut, polished, double screen printing |
| Panel options | Slate panel (black / white) or tempered glass (black frame / white frame) |
| Box configuration | Box body, socket, panel, U-type single-layer device bracket |
ELV Box Round Series vs ELV Box Platinum Crystal Series — Which One Do You Need?
| Feature | Round Series (this box) | Platinum Crystal Series |
|---|---|---|
| Example item # | HEBSR16SB/SW/BG/WG | HEBSR14B/G/W |
| Panel shape | Rounded panel styling | Rectangular, sharp-edged crystal styling |
| Panel finish options | Slate panel, tempered glass | Crystal white, crystal black, tempered glass |
| Frame & body construction | Aluminum frame, 1.0mm steel body | Aluminum frame, 1.0mm steel body |
| Best for | Interiors that suit a softer, rounded design language | Modern interiors that suit a sharper, crystal-cut look |
Note: ELV Box is a small category on heizka.com (2 series published) — this comparison covers both series currently available rather than three, since no third related ELV Box line is published yet.

Frequently Asked Questions
Four options: slate panel in black (HEBSR16SB) or white (HEBSR16SW), and tempered glass with a black frame (HEBSR16BG) or white frame (HEBSR16WG). All four share the same steel body, aluminum frame and internal bracket — only the visible panel differs.
Both share the same aluminum frame, 1.0mm steel body and aviation-grade hinge construction. The Round Series uses a softer, rounded panel silhouette with slate or tempered glass finishes, while the Platinum Crystal Series uses a sharper, rectangular crystal-cut design in white, black or glass. Choose whichever panel language matches the room’s interior styling.
The frame is CNC-finished, anodised aluminum extrusion with laser printing and chamfered edges. The box body is 1.0 mm cold-rolled steel, CNC stamped, bent, spot-welded and powder coated.
The hinge is made from aviation-grade aluminum and is designed to open and close repeatedly without deformation, so the door continues to sit flush after years of daily use.
Each unit ships as a complete kit: box body, socket, panel and a U-type single-layer device bracket for mounting switches or control modules inside.
Wipe either panel with a soft, dry or slightly damp cloth. Avoid abrasive cleaners or scouring pads, which can dull the slate finish or the glass panel’s double screen-printed coating over time.
Packaging & Delivery
Each Heizka ELV Box Round Series unit ships as a complete kit — box body, aluminum frame, panel and device bracket packed together with mounting hardware, ready for on-site installation.
Choosing the right panel finish for the Heizka ELV Box Round Series helps the enclosure blend into any interior while keeping smart-home electronics fully protected.
Heizka Cable — Designed in the USA, distributed in 20+ countries worldwide.

