Transco MB/AS/B Powerclip Mounting Block 25mm 1-2 Gang Architrave Black

Description

Architrave Switch Surface Mounting. 25mm Deep. Finished in Black.

The Transco MB/AS/B is a 25mm deep surface mounting block in black designed specifically for the Transco Powerclip 1 and 2 gang architrave light switches — the correct surface mounting solution where no wall cavity is available for flush mounting an architrave switch plate, with a dark finish that coordinates with the black Powerclip architrave switch plates. Black polycarbonate construction, horizontal or vertical mounting position supported. Sold individually.

• Transco — 25mm deep mounting block for Powerclip architrave switches
• Black polycarbonate construction
• Suits Transco Powerclip 1 gang and 2 gang architrave switch plates
• Not compatible with standard GPO plates, Powerclip standard grid plates, or other brands
• Surface mount only
• Horizontal or vertical mounting position
• Fixing centres: 74mm
• Dimensions: W35mm x L85mm x D25mm
• Actual measured height: 23.5mm
• Also available in white (MB/AS)

Order online now for fast dispatch Australia-wide.

Where the MB/AS/B Fits — Black Surface Mounting for Architrave Switches

The Powerclip architrave switch plate has a narrower, taller format than a standard grid plate — W35 x L85mm versus the standard W72 x L116mm — making it the natural fit for narrow locations such as beside door frames and in corridor wall positions. The MB/AS/B is purpose-built to match this format in black: it provides exactly the right 35 x 85mm footprint and 74mm fixing centres for the Powerclip black architrave switch plates (AS1BC/B, AS2BC/B and equivalents), with 25mm of depth behind the plate for cable housing and a matching black finish for a coordinated installation. The actual measured height is 23.5mm.

The 25mm depth is the key distinction from the standard MB/B universal mounting block (34mm deep, 84mm fixing centres, 76 x 119mm footprint) — the MB/AS/B is shallower and narrower, matching the slimmer architrave plate format. Using a standard MB/B block behind a black architrave plate is not possible due to the different fixing centre pattern and footprint dimensions. The MB/AS/B is the only correct black surface mounting block for black Powerclip architrave switch plates.

The MB/AS/B is the black variant — the white variant (MB/AS) is available for white architrave switch installations. Both share the same dimensions, fixing centres, and architrave switch compatibility. Sold individually — specify the quantity needed for the installation.

Q: Can the MB/AS/B be used with standard Powerclip grid plates or other switch plates?
A: No. The MB/AS/B is designed specifically for the Transco Powerclip 1 and 2 gang architrave switch plates. It will not suit standard Powerclip grid plates, other Transco products, or switch plates from other manufacturers due to the unique W35 x L85mm footprint and 74mm fixing centres of the architrave format.

Q: What is the difference between the MB/AS/B and the standard MB/B mounting block?
A: The MB/AS/B is a 25mm deep block with W35 x L85mm footprint and 74mm fixing centres — specifically for architrave switch plates in black. The standard MB/B is a 34mm deep block with W76 x L119mm footprint and 84mm fixing centres — for all standard size GPO and wall plates in black. They are not interchangeable.

Q: Can the MB/AS/B be mounted both horizontally and vertically?
A: Yes. The MB/AS/B supports both horizontal and vertical mounting positions, consistent with the black Powerclip architrave switch plates it is designed to suit.