Potterton
Potterton Terminal Block 5138666
Terminal block 5138666 for Potterton Commercial Sirius SAT R/1 and SAT Rp/1 boilers.
At a glance
- Part type: terminal block
£7.56
£6.30 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Potterton 5138666 terminal block is a wiring connection component for Potterton Commercial gas boilers. It is listed for use on Potterton Commercial Sirius appliances. The block terminates conductors within the appliance's electrical connections.
Signs this part needs replacing
- Scorching, discolouration or melting of the terminal block housing
- Loose, corroded or pitted conductor connections
- Intermittent power or the boiler failing to start or firing erratically
- Visible arcing marks or heat damage around the terminals
- Cracked or brittle insulation where conductors enter the block
Before you order
- Confirm your appliance model matches the fitment list, as the block is listed only for Potterton Commercial Sirius SAT R/1 and SAT Rp/1 models
- Check the part number 5138666 on the existing component or appliance documentation
- Isolate the electrical supply before inspecting the terminal block
- Compare the connection layout and terminal arrangement with the existing block before fitting
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| POTTERTON COMMERCIAL POTTERTON COMMERCIAL SPARES | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS SAT R/1 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS SAT RP/1 | — | — | — |
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
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