Ireland.

230 V · 50 Hz on Type G.

Type GBritish 13 A plug13 A · earthed

Ireland uses the same fused three-pin Type G system as the UK, at 230 V and 50 Hz, so anything bought for Britain works unchanged. Continental European round-pin plugs do not fit and need an adapter; travellers from North America need an adapter plus dual-voltage appliances for the doubled supply voltage.

The voltage window

A nominal 230 V supply may legitimately sit anywhere between 207 and 253 V (±10%). Dual-voltage gear (marked 100–240 V) shrugs at all of it.

Grid facts verified against IEC World Plugs — Ireland. Prose is our own.

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Pack an adapter — Ireland runs 230 V 50 Hz on Type G — and your 120 V appliances need to be dual-voltage or transformed, adapter or not.

Type A needs an adapter
Ireland's Type G sockets don't take a Type A plug.
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Type B needs an adapter
Ireland's Type G sockets don't take a Type B plug.
the full story

Faces drawn to scale from pin dimensions · verdicts are physical fit + voltage math, not safety advice — when in doubt, ask the hardware store, not the internet.