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Akuvox AK-E20INWALLK is the standard 86 in-wall kit for the E20S stainless steel emergency intercom. The E20S is a flush-mount, indoor-only panel that fixes to an 86-type back box with two tamper-proof screws — this is the box to build into the wall where there isn’t one already.
- ✓86-type single in-wall back box for the Akuvox E20S
- ✓82.5 × 82.5 mm flange, 50 mm deep; 60 mm screw centres
- ✓Knock-out cable entries for the PoE cable
- ✓E20S 100 × 100 mm faceplate covers the box; fixes with its tamper-proof screws
The back box for the E20S.
Standard 86 format.
The AK-E20INWALLK is the in-wall mounting kit Akuvox lists for the E20S. The E20S is a 100 × 100 mm stainless steel help point that only flush-mounts, and it is designed to sit on a single 86-type in-wall box.
This SKU is the in-wall back box only.
You receive the 86-type in-wall back box. The E20S, which comes with its tamper-proof screws and Torx wrench, is sold separately.
- Akuvox E20S in-wall 86 back box
- Akuvox E20S emergency intercom
- PoE 802.3af switch or injector
Ready for a flush help point.
Lifts, car-park lobbies, disabled toilets and reception counters: wherever an E20S is going in, build this box into the wall and run the PoE cable to it.

Fit
Made for the E20S faceplate.
The E20S is 100 × 100 × 37.7 mm, flush-mounted, and Akuvox designs it for 86-type single in-wall boxes. Its faceplate covers the box completely.
The box has an 82.5 × 82.5 mm flange, is 50 mm deep with 60 mm screw centres, and has knock-out cable entries for the network cable.
Install
Two screws and it’s done.
Run the PoE cable into the box and plug it into the E20S. Push the panel into the box and fix it with two tamper-proof screws using the Torx wrench supplied with the E20S.
The E20S comes with both M3.5×30 and M4×30 tamper-proof screws, so it also fits existing 86 boxes with different screw sizes.
At a glance
Key specs — AK-E20INWALLK
Show all specifications
- Type
- 86-type single in-wall back box
- Compatible with
- Akuvox E20S emergency intercom
- Box size
- 82.5 × 82.5 mm flange, 50 mm deep
- Screw centres
- 60 mm
- E20S size
- 100 × 100 × 37.7 mm
- Colour
- White
- Use
- Indoor walls (E20S is indoor only)
- Shipping weight
- 0.15 kg
- Warranty
- Australian warranty
- Brand
- Akuvox
- Reference
- AK-E20INWALLK
Back box
- Standard
- 86-type single in-wall box
- Flange
- 82.5 × 82.5 mm (95 mm across the side lugs)
- Inside
- 70 × 70 mm
- Depth
- 50 mm (52.5 mm including the 3.5 mm flange)
- Screw centres
- 60 mm
- Cable entries
- Knock-outs in the back, sides and ends
- Colour
- White
Fit
- Compatible intercom
- Akuvox E20S
- E20S faceplate
- 100 × 100 mm, covers the box
- E20S fixing
- 2 tamper-proof screws, M3.5×30 or M4×30 (supplied with the E20S)
- Recommended height
- Button centre no higher than 1,200 mm
Pair it with
Fits the Akuvox E20S
Help point
Akuvox E20S
Stainless steel SIP emergency push-button intercom, PoE.
Downloads
Datasheets and guides
Compliance certificates and technical documents are available on request for tenders and installers — send an enquiry.
Answers
Common questions
Which intercom does it fit?
The Akuvox E20S emergency intercom, which is designed for 86-type single in-wall boxes.
How big is the box?
An 82.5 × 82.5 mm flange, 70 × 70 mm inside and 50 mm deep, with screw centres 60 mm apart.
Do I need it if the wall already has an 86 box?
No. The E20S fixes to a standard 86 box; it ships with M3.5×30 and M4×30 screws to suit different boxes.
How high should it go?
Akuvox's placement drawing puts the E20S button centre no higher than 1,200 mm above the floor.
Can the E20S go outdoors?
No. Akuvox rates the E20S for indoor use only.
Is the E20S included?
No. This SKU is the back box only.
E20S installs made simple.
Order one back box per E20S unless the wall already has a suitable 86 box.
Installation & safety notice
Fitting. Set the box into the wall and bring the PoE cable into it. Plug the cable into the back of the E20S, push the unit into the box and fix it with the two tamper-proof screws supplied with the E20S (M3.5×30 or M4×30, to suit the box). The E20S is for indoor use only — see the Akuvox E20 quick guide.
- Colour
- White
- Brand
- Akuvox
- Mounting
- In-wall / flush
- Warranty
- Australian warranty
- Product Type
- In-wall 86-type back box
- Model
- E20 in-wall kit
- Compatible with
- Akuvox E20S emergency intercom
- Box Standard
- 86-type single in-wall box
- Box Size
- 82.5 × 82.5 × 50 mm (flange × depth)
- Screw Centres
- 60 mm