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Eelectron BK42MV-BK OL-U Button Kit, 6 Keys (4 Left + 2 Right) – Metal Black
✗
UL Listed
This product has not been certified by an NRTL (UL, ETL, CSA or
equivalent). Installation in USA projects may require a Field Evaluation
by a recognized laboratory. Consult your local AHJ before specifying.
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Low Voltage · SELV
This device operates on a Safety Extra Low Voltage circuit — such as
the KNX 29V bus or a DALI 16V bus (NEC Class 2). When powered by an
NRTL-listed power supply, many AHJs accept non-listed SELV devices.
Verify with your local AHJ before specifying.
Regular price
$83.90 USD
Regular price
-8%
$90.72 USD
Sale price
$83.90 USD
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The Eelectron BK42MV-BK is the 4 left + 2 right kit in metal black for the OL-U KNX switch SO08A01KNX (8 buttons, 16 channels, RGB swipe bar, thermostat). SO08A01KNX ships as bare hardware; the key set, a PO71 cover frame and an FO71A01 metal frame are ordered separately to suit the interior. This layout gives four half-buttons in the left column and two tall buttons in the right column, each key backed by its own RGB LED and freely programmable in ETS.
The finish is metal, black (MV-BK), one of the four 2026 additions to the OL-U Metal Edition beside the original silver (MT-SH); the MV code supersedes the earlier MT code for the coloured metals. The same tone runs across the BKxxMV-BK key sets and every PO-series frame format, so keypad, thermostat and adjacent receptacles can share one metal. Other tones: champagne (MV-CH), gold (MV-GO), bronze (MV-BR).
Key Features
- Layout: 4 left half-buttons and 2 right full-height buttons
- Finish: metal, black (MV-BK) — OL-U Metal Edition
- Snap-on fit over the device, under the cover frame; individual keys lift out with a flat screwdriver
- Each key position backed by a device LED (RGB on SO08A01KNX) and freely assignable in ETS
- Interchangeable with the other OL-U key sets (MT, MV, FX, PL) — re-dress installed hardware without rewiring
- Works with PO71A01 (2-module), PO71A03 (3-module) and the 71+xx double frames
- Clean with a soft microfibre cloth and water or neutral soap only; no solvents or abrasives
Technical Specifications
| Type | Key set (button kit) for OL-U KNX wall devices |
| Keys / layout | 6 keys: 4 left + 2 right |
| Finish / colour | metal, black (MV-BK) |
| Material | metal, black finish |
| Compatible hardware | SO08A01KNX |
| Compatible cover frames | PO71A01xx, PO71A03xx, PO71A71 / A55 / A45 / A60 doubles |
| Device footprint | 71 x 71 mm (2.80 x 2.80 in) OL-U front |
| Manufacturer part no. | BK42MV-BK |
Related Products
Fits SO08A01KNX. Other layouts in metal black: BK04MV-BK, BK08MV-BK, BK24MV-BK; thermostat kit BKT4MV-BK. Same layout, other Metal Edition tones: BK42MV-CH, BK42MV-GO, BK42MV-BR; silver BK42MT-SH. Matching frames: PO71A01MV-BK, PO71A03MV-BK, PO71A71MV-BK; socket companions PO45A01MV-BK, PO55A01MV-BK. Mounting frames FO71A01-2M / -3M.
Passive accessory – no electrical rating. The OL-U KNX hardware it mounts on is CE certified; not UL/NRTL listed — verify local code requirements before specifying in US installations.
Datasheet (PDF) · Available to order.
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