Burg-Wächter Key Safe 40 - Large Wall-Mount Combination Key Safe with Shutter Flap, 11cm Capacity
The Burg-Wächter Key Safe 40 is the largest wall-mount model in the Burg-Wächter key safe range. Its 80mm-wide, 65mm-high interior carries a key hook and a magnetic pad and takes keys up to 11cm, plus bulkier keyrings that will not fit the smaller models. A sliding shutter flap covers the dials and release button, protecting them from dust, dirt and direct weather when closed.
The die-cast zinc body opens on a 4-dial resettable mechanical combination with 10,000 possible codes. It shares its shutter design and hook-and-pad interior with the Burg-Wächter Key Safe 30, which is the more compact choice for keys under 9cm. No power, Wi-Fi or app is required. See the full key storage range.
Key Features
- Largest wall-mount model in the Burg-Wächter key safe range
- Sliding shutter flap protects the dials from dust, dirt and direct weather
- Die-cast zinc body for durability and resistance to physical attack
- 4-dial resettable mechanical combination - 10,000 possible codes, factory preset 0-0-0-0
- Internal hook and magnetic pad - keys up to 11cm
- 80mm-wide interior with 65mm height - room for bulky keyrings and multiple keys (the Burg-Wächter Key Safe 30 is 65mm wide)
- "0-0-0-0" auto-stop position aids dial alignment in low-light conditions
- Wall-mount via 4 corner fixing points using the included screws and plugs
- Fully mechanical - no batteries, no Wi-Fi, no app
What's in the Box
- 1 x Burg-Wächter Key Safe 40 unit
- 1 x internal key hook
- 1 x magnetic key pad
- 4 x wall-mount screws and plugs
- 1 x instruction manual
Suitable Uses
- Outdoor key storage where direct rain exposure is possible - the shutter flap gives the dials meaningful weather protection
- Longer keys (up to 11cm), thick keyrings, or several keys side by side
- Holiday rental and Airbnb check-in where a full house key and fob need to be left on site - see our simplest key box option for occasional hosts
- Tradesperson and contractor access in residential or light commercial settings
- Caregiver and aged care access without the resident needing to be present
- Real estate agent and property management key access
Available Finish Options
Black
(This Product)
STK KS-40
Finish selection does not affect functionality, compliance, or performance.
Burg-Wächter Key Safe Range
This product is the bold row. Every model uses the same 4-dial mechanical combination. For push-button or app-managed key storage, browse the wider key storage range.
Full Specifications
Frequently Asked Questions
What is the factory-set combination?
The Key Safe 40 ships set to 0-0-0-0. Change it to a personal code before putting the unit into service.
The Key Safe 40 ships set to 0-0-0-0. Change it to a personal code before putting the unit into service.
How do I open the Key Safe 40?
Slide the shutter flap down to expose the dials and the release button. Turn all four dials to your combination, grasp the sides of the top section and pull the lid towards you. To lock, close the lid and turn the dials away from the set combination to scramble the code.
Slide the shutter flap down to expose the dials and the release button. Turn all four dials to your combination, grasp the sides of the top section and pull the lid towards you. To lock, close the lid and turn the dials away from the set combination to scramble the code.
How is the Key Safe 40 different from the Key Safe 30?
Both use the same shutter flap design and hook-and-magnetic-pad interior. The Key Safe 40 has a wider interior (80mm vs 65mm), a greater maximum key length (11cm vs 9cm) and a deeper body (54mm vs 40mm), so it takes bulkier keyrings and key bundles. If your keys are under 9cm and fit a 65mm interior, the Burg-Wächter Key Safe 30 is an equally capable and slightly more compact option.
Both use the same shutter flap design and hook-and-magnetic-pad interior. The Key Safe 40 has a wider interior (80mm vs 65mm), a greater maximum key length (11cm vs 9cm) and a deeper body (54mm vs 40mm), so it takes bulkier keyrings and key bundles. If your keys are under 9cm and fit a 65mm interior, the Burg-Wächter Key Safe 30 is an equally capable and slightly more compact option.
Can the combination be changed?
Yes. Open the safe with the current code, slide the reset pin left and down as shown in the instruction diagram, and turn the dials to your new combination so each number sits centrally and clicks into place. Return the pin to its original position, then close the lid and check the box opens with the new code. There is no cap to remove - that extra step applies only to the Burg-Wächter Key Safe 10 and Burg-Wächter Key Safe 20.
Yes. Open the safe with the current code, slide the reset pin left and down as shown in the instruction diagram, and turn the dials to your new combination so each number sits centrally and clicks into place. Return the pin to its original position, then close the lid and check the box opens with the new code. There is no cap to remove - that extra step applies only to the Burg-Wächter Key Safe 10 and Burg-Wächter Key Safe 20.
What if the combination is forgotten?
There is no override or emergency access method. If the code is lost, the safe cannot be opened. Record the combination and keep it somewhere separate and secure before the unit goes into service. If you need a key held outside the house for a smart lock, our guide to storing the override key outside covers the options.
There is no override or emergency access method. If the code is lost, the safe cannot be opened. Record the combination and keep it somewhere separate and secure before the unit goes into service. If you need a key held outside the house for a smart lock, our guide to storing the override key outside covers the options.
Additional Information
- Reset mechanism - Key Safe 30, 40 and 50: The Key Safe 40 uses the simplified slide-pin reset: open the safe, slide the pin left and down, set the new combination, return the pin, then close the lid and check the new code. There is no plastic cap to remove - the Burg-Wächter Key Safe 10 and 20 need that extra step.
- Installation: Fix to a solid masonry, brick or timber wall using all four corner holes on the back plate. Drill 6mm holes, insert the supplied plugs and secure with the supplied screws; Burg-Wächter notes that some wall types need special dowels for a secure anchor. Choose a location that is discreet but has enough light for the authorised user to read the dials, and keep the lid closed when not in use. The shutter flap protects the dials from rain, but avoid mounting directly below a downpipe or in a zone subject to sustained water flow. Prefer a professional fit? Talk to us about advice and installation.
- Maintenance: Turn all four dials weekly to keep them moving freely, as Burg-Wächter recommends. Wipe the body with a dry cloth periodically. Keep the shutter flap closed when not in use. If the dials become stiff, apply a small amount of dry graphite lubricant sparingly to the dial spindles; do not use oil-based lubricants. On the coast, see keeping a keysafe working in salt air.
- Capacity note: At 80mm interior width, the Key Safe 40 is the widest wall-mount option in the range. If maximum capacity and room for a bulky keyring matter more than compactness, choose it over the Burg-Wächter Key Safe 30. If you need portability or gate mounting, the Burg-Wächter Key Safe 50 adds a detachable shackle for railings, door handles or fixed bars without drilling. Want another large-capacity dial box? Compare the ABUS Key Garage KG787BIG.
- Considering a smart alternative? For short-stay operators who need remote code management or an audit trail, consider the Igloohome Keybox 3 (Bluetooth, algoPIN, IP66) or the ABUS Key Garage KG787BTC (Bluetooth, app-managed). Both need battery power; the Key Safe 40 has no power dependency, so the right choice depends on the site and how access is managed. See Chapter 07 - Airbnb and Short-Stay Rentals for the two main approaches.
Download PDF Resources
Burg-Wächter Key Safe 40 - Instruction Sheet (PDF)
Burg-Wächter's operating instructions for the Key Safe 30 and 40: opening behind the shutter, changing the combination, locking, wall fitting with a 6mm drill, and weekly dial maintenance.
Burg-Wächter's operating instructions for the Key Safe 30 and 40: opening behind the shutter, changing the combination, locking, wall fitting with a 6mm drill, and weekly dial maintenance.
Burg-Wächter Key Safe 40 - FAQ, Setup and Owner's Guide
Answers to the questions we are asked most about the Key Safe 40, from changing the code to choosing between models. The instruction sheet (PDF) shows the reset pin diagrams.
Codes, Opening and Locking
Where is the release button?
Slide the shutter flap down. The dials and the door release button sit behind it. With the dials on your combination, grasp the sides of the top section and pull the lid towards you.
Slide the shutter flap down. The dials and the door release button sit behind it. With the dials on your combination, grasp the sides of the top section and pull the lid towards you.
How do I change the code on the Key Safe 40?
Open the safe with the current code, slide the reset pin left and down as shown in the instruction diagram, and turn the dials to your new combination so each number sits centrally and clicks into place. Return the pin to its original position, then close the lid and check the box opens with the new code. There is no cap to remove - that extra step applies only to the Burg-Wächter Key Safe 10 and Burg-Wächter Key Safe 20.
Open the safe with the current code, slide the reset pin left and down as shown in the instruction diagram, and turn the dials to your new combination so each number sits centrally and clicks into place. Return the pin to its original position, then close the lid and check the box opens with the new code. There is no cap to remove - that extra step applies only to the Burg-Wächter Key Safe 10 and Burg-Wächter Key Safe 20.
How do I lock it again after taking a key out?
Close the lid, then scramble the combination by turning the four dials away from your code.
Close the lid, then scramble the combination by turning the four dials away from your code.
Is there any way in if I lose the code?
No. There is no key override and no emergency opening method, so a lost code means the box cannot be opened. Write the combination down and keep it somewhere separate before you store a key inside.
No. There is no key override and no emergency opening method, so a lost code means the box cannot be opened. Write the combination down and keep it somewhere separate before you store a key inside.
Mounting and Weather
What drill size and fixings do I need?
Use a 6mm drill for the four corner holes on the back plate and mount the unit on a solid wall. Wall plugs are included for masonry and brick; some wall types need special dowels for a secure anchor.
Use a 6mm drill for the four corner holes on the back plate and mount the unit on a solid wall. Wall plugs are included for masonry and brick; some wall types need special dowels for a secure anchor.
Can it go on an exposed outside wall?
Yes - the sliding shutter flap protects the dials from dust, dirt and direct rain when closed. Avoid a spot directly under a downpipe or in a sustained water flow zone, and keep the flap closed when not in use.
Yes - the sliding shutter flap protects the dials from dust, dirt and direct rain when closed. Avoid a spot directly under a downpipe or in a sustained water flow zone, and keep the flap closed when not in use.
Will it cope with salt air on the Gold Coast?
Turn the dials weekly to keep them moving freely, and use a little dry graphite if they stiffen. For salt-air installations, read our coastal maintenance notes and coastal environments guide.
Turn the dials weekly to keep them moving freely, and use a little dry graphite if they stiffen. For salt-air installations, read our coastal maintenance notes and coastal environments guide.
Capacity and Choosing a Model
Will my keys fit?
The Key Safe 40 takes keys up to 11cm long on its hook and magnetic pad. Compare every model's key length, holder and size in the range table.
The Key Safe 40 takes keys up to 11cm long on its hook and magnetic pad. Compare every model's key length, holder and size in the range table.
Is it safe to leave a keyless car fob inside?
Keyless-entry car fobs can be targeted by relay attacks. Before leaving one in any key safe, read our explanation of relay attack risk and how a surf key lock box works.
Keyless-entry car fobs can be targeted by relay attacks. Before leaving one in any key safe, read our explanation of relay attack risk and how a surf key lock box works.
Which Burg-Wächter key safe should I choose?
Burg-Wächter Key Safe 10 - keys to 7cm, hook, no flap; Burg-Wächter Key Safe 20 - keys to 12cm, magnetic holder, no flap; Burg-Wächter Key Safe 30 - keys to 9cm, hook + magnetic pad, shutter flap; Burg-Wächter Key Safe 40 - keys to 11cm, hook + magnetic pad, shutter flap; Burg-Wächter Key Safe 50 - keys to 8cm, hook + magnetic pad, shutter flap, shackle or wall-mount.
Burg-Wächter Key Safe 10 - keys to 7cm, hook, no flap; Burg-Wächter Key Safe 20 - keys to 12cm, magnetic holder, no flap; Burg-Wächter Key Safe 30 - keys to 9cm, hook + magnetic pad, shutter flap; Burg-Wächter Key Safe 40 - keys to 11cm, hook + magnetic pad, shutter flap; Burg-Wächter Key Safe 50 - keys to 8cm, hook + magnetic pad, shutter flap, shackle or wall-mount.
Mechanical or Smart Key Storage
Should I choose a mechanical key safe or a smart key safe?
A mechanical box like this needs no batteries, Wi-Fi or app, but codes are shared by hand and there is no record of who opened it. A smart key safe such as the Igloohome Keybox 3, ABUS KG787BTC, McGrath KEYSAFE or Master Lock 5441EC adds app-based code management (features vary by model, so check each page) but relies on batteries. See the Keybox 3 for Airbnb and the Bluetooth key safe explained.
A mechanical box like this needs no batteries, Wi-Fi or app, but codes are shared by hand and there is no record of who opened it. A smart key safe such as the Igloohome Keybox 3, ABUS KG787BTC, McGrath KEYSAFE or Master Lock 5441EC adds app-based code management (features vary by model, so check each page) but relies on batteries. See the Keybox 3 for Airbnb and the Bluetooth key safe explained.
What other mechanical key safes do you stock?
Other dial-combination wall boxes include the ABUS Key Garage KG787C, ABUS Key Garage KG787BIG, Carbine Wall Mounted Key Safe - Dial (Small) and Carbine Wall Mounted Key Safe - Dial (Large). For a maximum-security mechanical key safe, compare the Wolflok Maximum Security Key Safe.
Other dial-combination wall boxes include the ABUS Key Garage KG787C, ABUS Key Garage KG787BIG, Carbine Wall Mounted Key Safe - Dial (Small) and Carbine Wall Mounted Key Safe - Dial (Large). For a maximum-security mechanical key safe, compare the Wolflok Maximum Security Key Safe.
Where should I keep a spare key for my smart lock?
A combination key safe is a common home for the backup key of a smart lock with a key override. Our guide covers storing the override key outside the house and key hiders as alternatives.
A combination key safe is a common home for the backup key of a smart lock with a key override. Our guide covers storing the override key outside the house and key hiders as alternatives.
Related Products, Guides and Chapters
The Burg-Wächter range: Burg-Wächter Key Safe 10 · Burg-Wächter Key Safe 20 · Burg-Wächter Key Safe 30 · Burg-Wächter Key Safe 50 · all Burg-Wächter products
Other key storage: Igloohome Keybox 3 · ABUS Key Garage KG787BTC · ABUS Key Garage KG787C · Wolflok Maximum Security Key Safe · all key storage
Guides: Airbnb smart locks without Wi-Fi · which Airbnb setup is right for you · other uses for a key lock box · Chapter 07 - Airbnb and Short-Stay Rentals
What's in the Box - Key Safe 40 (KS-40)
- 1 x Burg-Wächter Key Safe 40 unit
- 1 x internal key hook
- 1 x magnetic key pad
- 4 x wall-mount screws and plugs
- 1 x instruction manual
PDF Files - Key Safe 40 (KS-40)
Burg-Wächter Key Safe 40 - Instruction Sheet (PDF)
Burg-Wächter's operating instructions for the Key Safe 30 and 40: opening behind the shutter, changing the combination, locking, wall fitting with a 6mm drill, and weekly dial maintenance.
Burg-Wächter's operating instructions for the Key Safe 30 and 40: opening behind the shutter, changing the combination, locking, wall fitting with a 6mm drill, and weekly dial maintenance.
