Mühlen WSB 30
In-Wall / Wall-Mounted Recessed Digital Steel Safe
In-Wall
Designed to be flush-mounted inside the wall, the MÜHLEN WSB 30 model achieves maximum security and aesthetics as a result. Easily able to hold cash and other valuables, the model can also be fully concealed by covering it with a picture, clock or similar decorative item, turning it into a true hidden safe.
Spacious Interior
With interior dimensions of 275x210x190mm, the model offers an 11-liter capacity. Thanks to its removable middle shelf, the MÜHLEN WSB 30 in-wall (recessed) digital safe can be used either as a single compartment or as two levels with a shelf.
Q235 Steel
The door and body are made of 5mm thick, high-carbon steel, making the model extremely resistant to external interference. It is manufactured from specially reinforced steel to withstand cutting, drilling and bending attempts.
Key & Code
Users can open the MÜHLEN WSB 30 steel safe either with a code or with the key supplied with the safe. The model allows users to easily set their own 3-8 digit code, and it protects itself against repeated incorrect code entries by locking the user panel for 3-5 minutes.
Organized
Thanks to both its interior size and removable shelf system, the model offers a highly organized interior and resists any attempted external interference. Because the safe door is hinged on the inside and opens at a 90° angle, forcing or cutting the hinges from outside is impossible, while also preventing the door from hitting the wall.

Unique Panel
The model features a unique panel with a durable keypad, a smooth turning knob, a concealed key slot, and an LED light system that alerts the user in every situation. In addition, the smart user panel automatically locks itself again if the knob is not turned within 3 seconds of entering the code.
Creative Design
With a near-white cream color, the model creates a highly creative look on any wall. It can easily be concealed behind a picture or portrait on the wall and features a steel locking mechanism. Designed with extremely modern and clean lines, the model also offers 360-degree protection.

Technical Specifications
- In-wall (recessed) safe with digital code lock
- Can be opened with a code or a key
- 2 steel door bolts (Ø 20mm x 2)
- High-carbon steel body and door (5mm)
- Front/rear flanges to prevent it coming out of the wall
- Flush, built-in installation inside the wall
- Changeable safe opening code
- Can be concealed behind a picture, 360° security
- Protection against repeated incorrect code entries
- Steel-hinged safe door on the inside
- Smooth-turning opening knob
- 3 LED indicators that alert the user
- New code setup (3-8 digits)
- Digital, user-friendly code panel
- Automatic door locking system (*6)
- Split, removable shelf
- Steel central locking system
- Stylish and modern design
- 24-month warranty
Advantages
- Built-in (recessed) digital steel safe
- Opens with code or key
- 5mm high-carbon steel
- Removable shelf system
- Smart user panel
Physical Properties
- Flange Dimensions: 300x230x200mm
- Safe Dimensions: 275x210x190mm
- Box Dimensions: 280x280x380mm
- Net Weight: 7.50 kg
- Gross Weight: 8 kg
Mühlen WSB 30 — Recessed Wall-Mount Steel Safe with Digital Code Lock
Who Is It For?
The MÜHLEN WSB 30 is a recessed wall-mount steel safe for homes and offices that want to store cash, documents and valuables out of sight. It is installed flush inside the wall and can be fully concealed behind a picture, clock or similar decorative item, so visitors do not know it is there. With an 11-liter capacity and interior dimensions of 275 x 210 x 190 mm, it is sized for passports, envelopes, jewelry boxes and a reserve of cash rather than bulky items.
Key Features and What They Do
- Built into the wall: Front and rear flanges keep the safe from being pulled out once installed, and the near-white cream finish blends in with most walls.
- 5 mm high-carbon steel: Door and body are made of 5 mm reinforced steel to resist cutting, drilling and bending, and the door is secured by 2 steel bolts of 20 mm diameter.
- Internal hinges: The door is hinged on the inside and opens at 90°, so the hinges cannot be reached from outside and the door does not hit the wall.
- Code or key: Set your own code of 3 to 8 digits, or open with the supplied key through the concealed key slot.
- Smart panel: After repeated wrong codes, the panel locks for 3 to 5 minutes; if the knob is not turned within 3 seconds of entering the code, the safe locks itself again. Three LEDs keep the user informed.
- Removable middle shelf: Use the safe as a single compartment or as two levels.
Frequently Asked Questions
How much space is needed in the wall?
The flange dimensions are 300 x 230 x 200 mm and the safe body measures 275 x 210 x 190 mm.
Can I change the opening code?
Yes. A new code of 3 to 8 digits can be set at any time from the digital panel.
How heavy is the WSB 30?
The net weight is 7.50 kg and the gross weight is 8 kg.
What warranty does it have?
The MÜHLEN WSB 30 is covered by a 24-month warranty.
Usage and Care Tips
Plan the position before cutting the wall opening, allowing enough room for the door to swing to 90°. Turn the knob promptly after entering the code, as the panel relocks after 3 seconds. Store the key away from the safe, and hang a picture or clock over the front once installation is complete to keep the safe out of view.



































