Circuit breaker replacement cost in Luxembourg (2026)

Parts prices (indicative):

• MCB 10 A to 32 A single-pole, European brand: €15–€45 per unit
• RCD 30 mA two-pole 25 A: €55–€110
• RCBO 16 A: €45–€95
• DIN-rail enclosure 12 module: €55–€140
• 3-phase four-pole RCD: €180–€340

Cost drivers:

• Brand — generic imports are 30–40 % cheaper but may not meet the standard or your insurer's expectations
• Pole count — three-phase circuits cost 2× to 3× a single-phase
• Time of day — after-hours calls 2,5× to 3× weekday daytime
• Circuit diagnostics — a non-obvious trip cause may bill €60–€150 in diagnostic time

A €150 net job at TVA 17 % reaches €176 TTC. Jobs this size stay below the TVA-logement minimums, so 3 % does not apply.

The Institut Luxembourgeois de Régulation (ILR) regulates the grid operators; it does not inspect or certify domestic installations. The work must be done by an approved electrician to the grid operators' technical rules (TAB-BT).

Like-for-like breaker swap inside an existing unit — no grid-operator step, provided:

• The replacement unit has the same pole count, ampere rating and short-circuit characteristic (C, B, D curve) as the original
• The enclosure, bus-bar and sub-distribution are unchanged
• The work does not introduce a new final circuit
• The electrician issues a signed job ticket referencing their Autorisation d'établissement

Changes that go beyond a swap — a new final circuit (oven, heat pump, EV charger), a change of RCD protection (e.g. 30 mA → 10 mA for medical equipment), moving, replacing or extending the consumer unit, or subdividing circuits for kitchen or bathroom zones — are TAB-BT work for the approved electrician and belong in a written scope.

The grid operator is involved when you need a new connection or more power (for example a move to three-phase): the electrician sends the grid operator, usually Creos, a signed end-of-works notice, and Creos checks the installation before fitting the meter. In Luxembourg City, a Certificat du Service de l'Électricité is also required for connections.

Practical rule: same breaker, same position, same rating → simple swap. A new connection or more power → end-of-works notice to Creos before the meter is fitted. Ask the electrician on the phone before confirming the job whether the scope involves Creos.

Most electricians bill a call-out fee plus time. Luxembourg market-rate conventions are predictable.

The four time bands:

• Weekday 08:00–18:00 — baseline: €45–€90 call-out, €65–€95 hourly
• Weekday 18:00–22:00 — evening: €75–€130 call-out, €85–€130 hourly
• Weekend daytime — €90–€180 call-out, €95–€145 hourly
• Night 22:00–08:00 and public holidays — €150–€280 call-out, €130–€220 hourly

What the call-out typically covers:

• Travel to and from site (radius ~35 km)
• First 15 minutes on site
• Basic testing tools (multimeter, insulation tester)
• A single breaker fit — but not the part itself

Diagnostic time that frequently surprises:

• Non-obvious trip: requires isolating each downstream circuit and testing leakage — 30 to 90 minutes at the hourly rate
• Intermittent fault: may need a return visit to capture the trip in action — second call-out billed at 50 %
• Old wiring (pre-1990): copper-to-aluminium joints corrode; testing each terminal in turn adds 20–40 minutes

Emergency rules worth knowing:

• A full power-out with RCD tripping is usually a downstream device, not the breaker itself — try unplugging each appliance first
• Sparks or smell of burning from the consumer unit — shut the main isolator, call the emergency line, expect night-rate cost
• A breaker that trips immediately on re-set — do not hold it against the spring; call the electrician

The cheapest emergency is the one avoided. A yearly RCD test (press the test button monthly, trip-time test annually) costs nothing and catches most issues before they escalate.

Electrical installation work on a dwelling is eligible for the TVA-logement scheme, but the amounts decide. For TVA 3 % directly on the invoice, the electrician's quote must exceed €3 000 excl. VAT and the AED must approve the request before the works start; 3 % then applies to the whole approved invoice, parts and labour together. For a refund afterwards, each invoice must exceed €1 250 excl. VAT and the claim must total more than €3 000 and cover at least 6 months.

Rate in practice:

• Single breaker, RCD or RCBO swap (€90–€450): below both minimums — TVA 17 % on the whole invoice
• Swap included in a larger approved renovation quote (primary residence at least 10 years old): TVA 3 % on the whole approved invoice
• Dwelling < 10 years old: TVA 17 % on everything, unless the works are completed within 5 years of buying it
• Rented dwelling that is the tenant's main residence: TVA 3 % possible under the same conditions
• Secondary residence: TVA 17 %
• Office or commercial premises: TVA 17 %

Worked example on a €150 TTC residential MCB swap:

• €128 net + TVA 17 % €22 = €150 TTC — no 3 % route at this amount

On a consumer-unit replacement at €2 400 net:

• Invoiced at 17 %: €2 400 + €408 = €2 808 TTC — the quote is below €3 000, so no direct 3 %
• The invoice is above €1 250, so it can count towards a refund claim if your eligible invoices total more than €3 000 over at least 6 months: TVA at 3 % would be €72, a refund of €336

Ask the electrician before signing whether the job is part of a larger renovation quote that the AED can approve before the works start.

For a single-breaker swap, quote comparison is mostly about hourly rates and call-out policy. For a board replacement, it is about enclosure brand, circuit count, RCD distribution and whether Creos must be involved.

The six checks that matter:

• Authorisation. Ask for the company's Autorisation d'établissement. A cash-only offer voids fire insurance.
• Brand of breakers. Hager, Schneider Electric, ABB, Legrand are accepted. Generic imports may not meet the standard.
• Warranty. 2-year manufacturer warranty on the breaker passes through; 2-year workmanship warranty on the installation is standard.
• Call-out policy. Flat fee or hourly? First 15 minutes included? After-hours multiplier?
• Diagnostic allowance. Up to 30 or 45 minutes diagnostic included in the call-out?
• Creos paperwork. If the scope needs a new connection or more power, is the end-of-works notice to Creos included in the price?

Briefing pack to send each electrician:

• Photo of the existing consumer unit with the lid off
• Photo of the tripping breaker with amperage reading visible
• Brand and model of any new appliance triggering the swap
• Target visit date
• Proof of primary residence if the swap is part of a larger renovation quote (TVA 3 %)

Typical market segments:

• One-person independent at €65–€85/hour — best for single-breaker swap, agile
• Small firm (3–6 electricians) at €75–€95/hour — full-board projects, usually covers Luxembourg-City and Esch
• Multi-trade building contractor at €85–€120/hour — premium, usually part of renovation bundle

Quotes on the same brief cluster within ±15 %. A 30 % discount in the cheapest quote usually means either the diagnostic is excluded (billed after) or the part is a generic import. Call to confirm brand and scope before picking.