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EOGB ZT812.1P Transformer 400mm

EOGB

EOGB ZT812.1P Transformer 400mm

ZT812.1P 400mm transformer from EOGB, part of the Honeywell Satronic range for boiler applications.

Manufacturer part no.
S01-ZT812.1P
Showing prices

£218.06

£181.72 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The ZT812.1P Transformer 400mm is a transformer manufactured by EOGB as part of the Honeywell Satronic range. It is a boiler component supplied as a complete 400mm transformer assembly. The transformer provides the high-tension supply used by the appliance ignition circuit.

Signs this part needs replacing

  • No spark at the ignition electrodes during the start sequence.
  • The boiler fails to light and locks out part-way through the ignition cycle.
  • Intermittent ignition failure, with the appliance lighting on some attempts and not others.
  • Visible tracking, arcing marks, swelling or heat damage on the transformer body or its leads.

Before you order

  • Check the part number on the existing transformer matches ZT812.1P.
  • Confirm the 400mm length matches the transformer being removed, as mounting and lead routing depend on it.
  • Confirm the appliance falls within the EOGB Honeywell - Satronic range before ordering.
  • Isolate the electrical supply to the appliance before inspecting or removing the transformer.

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.