C74 Crank Blackout Unit
A purpose-designed blackout assembly with a crank, enclosed headbox and light-sealing side and bottom channels.
Explore product : C74 Crank Blackout Unit
Product imagery is illustrative of the system. Confirm the finish and options in your quotation.
Blackout units
C75 Electric Blackout Unit
Product reference C75
A mains-powered blackout assembly with an enclosed roller, side channels, baffles and pile seals.
At a glance
- 230 V AC motor operation
- Dedicated perimeter light-control details
- Remote and group control options
UK-wide supply and installation enquiries. We confirm the configuration, availability and fitting requirements for your project.
Product overview
About this system
C75 provides powered operation for a dedicated blackout unit. It combines opaque fabric with an aluminium headbox, side channels and a controlled bottom detail, addressing the edge paths that remain around an ordinary roller blind.
The 230 V AC motor sits within the barrel. A local control, remote arrangement or grouped system can be considered according to the room. We check the electrical requirements and the physical sealing detail together before confirming the specification.
Specify the room requirement clearly
A room-darkening blind and a controlled blackout installation are different briefs. Explain the intended activity and any required acceptance standard so we can assess the complete opening rather than selecting fabric on opacity alone.
Coordinate the power and sill detail
The cable route, accessible connection point and controls need to be agreed. At the bottom, a sill-closing alternative is available by assessment; it should be selected with the actual sill surface and required light sealing in mind.
The technical details
Specification
| Motor | 230 V AC |
|---|---|
| Headbox | 100 × 100 mm (height × depth) |
| Barrel | 53 mm aluminium |
| Side channels | 75 × 20 mm (width × depth) |
| Light-control detail | Blackout fabric, baffles and pile seals |
Limits depend on the selected configuration. Use the relevant product documents and the agreed written specification for your order.
Options to discuss
- Remote or group controls
- Bottom-bar-to-sill arrangement by assessment
- Alternative RAL finish by enquiry
Check before ordering
- Installation details and other room openings affect the final blackout result.
- Electrical connection and control equipment must be agreed in the quotation.
Product resources
Technical documents
Defiant product brochurePDF · 1.6 MB · Opens in a new tabC75 technical datasheetPDF · 216 KB · Opens in a new tabC75 Blackout Unit Electric — fitting instructionsPDF · 289 KB · Opens in a new tab
Original manufacturer documents retain their branding. Confirm the product version and any additional warranty with your quotation.
Compare your options
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C77 Electric Overhead Blackout Unit
A motorised, tensioned blackout system for suitable roof windows where both access and light exclusion matter.
Explore product : C77 Electric Overhead Blackout UnitLet’s work through the details
Get a quote.
Plan your project.
Share the products you have in mind, or tell us what the space needs to do. We’ll help you establish the specification and the next step.
- Free initial estimates by email or WhatsApp
- UK-wide supply and installation enquiries
- Supply-only products and component orders
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We aim to reply within 24 hours. Appointment dates and any specialist installation requirements are confirmed by our team.