{
  "url": "https://openlegislation.uk/eu-regulation-2011-327/annex-I/division-2",
  "json_url": "https://openlegislation.uk/eu-regulation-2011-327/annex-I/division-2.json",
  "legislation": "eur/2011/327",
  "legislation_title": "Commission Regulation (EU) No 327/2011 of 30 March 2011 implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to ecodesign requirements for fans driven by motors with an electric input power between 125 W and 500 kW (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2011-327",
  "path": "annex/I/division/2",
  "kind": "division",
  "number": "2",
  "heading": "Fan energy efficiency requirements",
  "text": "The minimum energy efficiency requirements for fans are set out in Tables 1 and 2.\nTable 1\nFirst tier minimum energy efficiency requirements for fans from 1 January 2013\nFan types\nMeasurement category(A-D)\nEfficiency category(static or total)\nPower range P in kW\nTarget energy efficiency\nEfficiency grade(N)\nAxial fan\nA, C\nstatic\n0,125 ≤ P ≤ 10\nηtarget = 2,74 · ln(P) – 6,33 + N\n36\n10 < P ≤ 500\nηtarget = 0,78 · ln(P) – 1,88 + N\nB, D\ntotal\n0,125 ≤ P ≤ 10\nηtarget = 2,74 · ln(P) – 6,33 + N\n50\n10 < P ≤ 500\nηtarget = 0,78 · ln(P) – 1,88 + N\nCentrifugal forward curved fan and centrifugal radial bladed fan\nA, C\nstatic\n0,125 ≤ P ≤ 10\nηtarget = 2,74 · ln(P) – 6,33 + N\n37\n10 < P ≤ 500\nηtarget = 0,78 · ln(P) – 1,88 + N\nB, D\ntotal\n0,125 ≤ P ≤ 10\nηtarget = 2,74 · ln(P) – 6,33 + N\n42\n10 < P ≤ 500\nηtarget = 0,78 · ln(P) – 1,88 + N\nCentrifugal backward curved fan without housing\nA, C\nstatic\n0,125 ≤ P ≤ 10\nηtarget = 4,56 · ln(P) – 10,5 + N\n58\n10 < P ≤ 500\nηtarget = 1,1 · ln(P) – 2,6 + N\nCentrifugal backward curved fan with housing\nA, C\nstatic\n0,125 ≤ P ≤ 10\nηtarget = 4,56 · ln(P) – 10,5 + N\n58\n10 < P ≤ 500\nηtarget = 1,1 · ln(P) – 2,6 + N\nB, D\ntotal\n0,125 ≤ P ≤ 10\nηtarget = 4,56 · ln(P) – 10,5 + N\n61\n10 < P ≤ 500\nηtarget = 1,1 · ln(P) – 2,6 + N\nMixed flow fan\nA, C\nstatic\n0,125 ≤ P ≤ 10\nηtarget = 4,56 · ln(P) – 10,5 + N\n47\n10 < P ≤ 500\nηtarget = 1,1 · ln(P) – 2,6 + N\nB, D\ntotal\n0,125 ≤ P ≤ 10\nηtarget = 4,56 · ln(P) – 10,5 + N\n58\n10 < P ≤ 500\nηtarget = 1,1 · ln(P) – 2,6 + N\nCross flow fan\nB, D\ntotal\n0,125 ≤ P ≤ 10\nηtarget = 1,14 · ln(P) – 2,6 + N\n13\n10 < P ≤ 500\nηtarget = N\nTable 2\nSecond tier minimum energy efficiency requirements for fans from 1 January 2015\nFan types\nMeasurement category(A-D)\nEfficiency category(static or total)\nPower range P in kW\nTarget energy efficiency\nEfficiency grade(N)\nAxial fan\nA, C\nstatic\n0,125 ≤ P ≤ 10\nηtarget = 2,74 · ln(P) – 6,33 + N\n40\n10 < P ≤ 500\nηtarget = 0,78 · ln(P) – 1,88 + N\nB, D\ntotal\n0,125 ≤ P ≤ 10\nηtarget = 2,74 · ln(P) – 6,33 + N\n58\n10 < P ≤ 500\nηtarget = 0,78 · ln(P) – 1,88 + N\nCentrifugal forward curved fan and centrifugal radial bladed fan\nA, C\nstatic\n0,125 ≤ P ≤ 10\nηtarget = 2,74 · ln(P) – 6,33 + N\n44\n10 < P ≤ 500\nηtarget = 0,78 · ln(P) – 1,88 + N\nB, D\ntotal\n0,125 ≤ P ≤ 10\nηtarget = 2,74 · ln(P) – 6,33 + N\n49\n10 < P ≤ 500\nηtarget = 0,78 · ln(P) – 1,88 + N\nCentrifugal backward curved fan without housing\nA, C\nstatic\n0,125 ≤ P ≤ 10\nηtarget = 4,56 · ln(P) – 10,5 + N\n62\n10 < P ≤ 500\nηtarget = 1,1 · ln(P) – 2,6 + N\nCentrifugal backward curved fan with housing\nA, C\nstatic\n0,125 ≤ P ≤ 10\nηtarget = 4,56 · ln(P) – 10,5 + N\n61\n10 < P ≤ 500\nηtarget = 1,1 · ln(P) – 2,6 + N\nB, D\ntotal\n0,125 ≤ P ≤ 10\nηtarget = 4,56 · ln(P) – 10,5 + N\n64\n10 < P ≤ 500\nηtarget = 1,1 · ln(P) – 2,6 + N\nMixed flow fan\nA, C\nstatic\n0,125 ≤ P ≤ 10\nηtarget = 4,56 · ln(P) – 10,5 + N\n50\n10 < P ≤ 500\nηtarget = 1,1 · ln(P) – 2,6 + N\nB, D\ntotal\n0,125 ≤ P ≤ 10\nηtarget = 4,56 · ln(P) – 10,5 + N\n62\n10 < P ≤ 500\nηtarget = 1,1 · ln(P) – 2,6 + N\nCross flow fan\nB, D\ntotal\n0,125 ≤ P ≤ 10\nηtarget = 1,14 · ln(P) – 2,6 + N\n21\n10 < P ≤ 500\nηtarget = N",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2011/327/annex/I/division/2",
    "retrieved_at": "2026-11-01T14:50:13.631487+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}