Neptune NEMSMB - Mullion Mounting Box
The Neptune NEMSMB is a mullion size surface mounting box designed to suit Neptune exit buttons. It provides a simple surface mount option where cabling cannot be recessed, with a rear cable entry hole and multiple fixing points for stable mounting.
Key Features
- Mullion size back box for surface mounting Neptune exit buttons.
- Zinc alloy construction.
- Rear cable entry hole sized to 22 mm.
- 4 fixing points for secure mounting.
Specifications
- Item Code: NEMSMB
- Brand: Neptune
- Material: Zinc Alloy
- Rear Cable Hole: 22 mm
- Fixing Points: 4
What's In The Box
- 1 x Neptune NEMSMB mullion mounting box
Suitable Uses
- Surface mounting Neptune mullion style exit buttons where wiring cannot be concealed in the door frame.
- Retrofit jobs where masonry or steel frames make flush mounting impractical.
- Installations needing additional clearance behind a mullion plate device.
Dimensions
Neptune Mounting Boxes - Item Code Family
Frequently Asked Questions
- Does this mounting box suit mullion style Neptune exit buttons?
Yes. NEMSMB is a mullion size surface mounting box intended to suit Neptune mullion format exit button plates. - Where does the cable enter the box?
The box includes a 22 mm cable hole at the rear for cable entry from the mounting surface. - What is a common installation mistake to avoid?
Do not overtighten fixings into thin substrates. Use suitable wall plugs or rivnuts so the box stays rigid and the exit button does not flex during use.
Additional Information
- Mullion back boxes are commonly used in Australian retrofit access control jobs where frames are too narrow to recess cabling.
- If the exit button plate uses through bolts, confirm you have enough clearance inside the box for fixings and cable bend radius.
- For external or washdown areas, seal around the rear cable entry if moisture ingress is a concern.
Technical Drawing
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