Buyer decision guide
Motorized Shade Planning for Electrical Contractors
Prepare a motorized-shading electrical scope, tender assumptions and RFI matrix before final equipment, power and control paths are released.
Quick Answer
Price and release the electrical work from a documented scope, not a generic “power by electrician” note. Group openings by proposed system and supply path, identify local isolation, power-supply/controller locations, cable/conduit and interface boundaries, then raise RFIs for equipment-dependent information that is not frozen. The appointed designer and contractor retain local-code and installation responsibility.
Electrical Contractor Scope / RFI Matrix
| Record | Electrical scope question | Required response |
|---|---|---|
| Opening / system group | Which openings share the same selected power architecture? | Opening IDs, product direction and model data when selected |
| Available supply | What voltage/frequency and circuit are proposed? | Site information plus appointed electrical approval |
| Power conversion / location | Is a local or central supply proposed and accessible? | Named equipment, output allocation and service location |
| Cable / conduit | What routes are priced before exact hardware release? | Assumptions, spare/segregation policy and selected instructions |
| Interface cable | Who supplies/terminates the link to the controller? | Interface device, terminals, commands and integrator boundary |
| Drive side / endpoint | Where must power/control reach each opening? | Current elevation orientation and sign-off |
| Open RFI | What prevents a firm electrical scope? | Owner, required response date and revision |
Scope Demarcation
| Party | Typical project input | Boundary |
|---|---|---|
| Saiwenna | Selected motor/power/interface documentation within quoted scope | Does not certify local circuits or third-party programming |
| Electrical designer / contractor | Circuit, protection, isolation, conduit/cable and code compliance | Must use approved selected-equipment information |
| Integrator | Control topology, interfaces, commands, addressing and commissioning | Does not make motor power ratings interchangeable |
| Architect / main contractor | Openings, access, construction sequence and coordination | Keeps revisions and closure decisions aligned |
Tender Assumptions and Exclusions
- Separate known, provisional and excluded equipment information.
- State whether cable length, conductor, panel space and endpoints are allowances or approved design.
- Identify who supplies power supplies, gateways, interfaces, enclosures and local controls.
- Exclude unsupported compatibility and unspecified third-party programming.
- Attach each response to an RFI number and drawing revision.
Download the Scope / RFI Matrix
Download Electrical Contractor Scope and RFI Matrix (XLSX)
The blank matrix does not calculate conductor size, circuit protection, voltage drop or panel capacity. Those remain qualified electrical design tasks.
Synthetic RFI Example
Group DEMO-RS-01 is shown as 24 V DC at the motor, but the tender says only “230 V by electrician.” RFI-07 asks who supplies the conversion equipment, where it remains accessible, which output serves each opening and which approved wiring instruction applies. The electrical price keeps those items provisional until answered. Synthetic example, not a project instruction.
What the Project Team Receives
- A grouped electrical scope and interface boundary.
- Known assumptions and exclusions visible beside each group.
- Unresolved equipment data converted into numbered RFIs.
- The drawing/revision basis for first-fix planning.
- No statement that the tender is final engineering approval.
Send a Reviewable Brief
Send electrical tender scope, opening/system groups, site supply, drawings, interface requirements, assumptions and unresolved RFIs.