# 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), Division 2: Fan energy efficiency requirements

Extent: E+W+S+N.I.

The minimum energy efficiency requirements for fans are set out in Tables 1 and 2.
Table 1
First tier minimum energy efficiency requirements for fans from 1 January 2013
Fan types
Measurement category(A-D)
Efficiency category(static or total)
Power range P in kW
Target energy efficiency
Efficiency grade(N)
Axial fan
A, C
static
0,125 ≤ P ≤ 10
ηtarget = 2,74 · ln(P) – 6,33 + N
36
10 < P ≤ 500
ηtarget = 0,78 · ln(P) – 1,88 + N
B, D
total
0,125 ≤ P ≤ 10
ηtarget = 2,74 · ln(P) – 6,33 + N
50
10 < P ≤ 500
ηtarget = 0,78 · ln(P) – 1,88 + N
Centrifugal forward curved fan and centrifugal radial bladed fan
A, C
static
0,125 ≤ P ≤ 10
ηtarget = 2,74 · ln(P) – 6,33 + N
37
10 < P ≤ 500
ηtarget = 0,78 · ln(P) – 1,88 + N
B, D
total
0,125 ≤ P ≤ 10
ηtarget = 2,74 · ln(P) – 6,33 + N
42
10 < P ≤ 500
ηtarget = 0,78 · ln(P) – 1,88 + N
Centrifugal backward curved fan without housing
A, C
static
0,125 ≤ P ≤ 10
ηtarget = 4,56 · ln(P) – 10,5 + N
58
10 < P ≤ 500
ηtarget = 1,1 · ln(P) – 2,6 + N
Centrifugal backward curved fan with housing
A, C
static
0,125 ≤ P ≤ 10
ηtarget = 4,56 · ln(P) – 10,5 + N
58
10 < P ≤ 500
ηtarget = 1,1 · ln(P) – 2,6 + N
B, D
total
0,125 ≤ P ≤ 10
ηtarget = 4,56 · ln(P) – 10,5 + N
61
10 < P ≤ 500
ηtarget = 1,1 · ln(P) – 2,6 + N
Mixed flow fan
A, C
static
0,125 ≤ P ≤ 10
ηtarget = 4,56 · ln(P) – 10,5 + N
47
10 < P ≤ 500
ηtarget = 1,1 · ln(P) – 2,6 + N
B, D
total
0,125 ≤ P ≤ 10
ηtarget = 4,56 · ln(P) – 10,5 + N
58
10 < P ≤ 500
ηtarget = 1,1 · ln(P) – 2,6 + N
Cross flow fan
B, D
total
0,125 ≤ P ≤ 10
ηtarget = 1,14 · ln(P) – 2,6 + N
13
10 < P ≤ 500
ηtarget = N
Table 2
Second tier minimum energy efficiency requirements for fans from 1 January 2015
Fan types
Measurement category(A-D)
Efficiency category(static or total)
Power range P in kW
Target energy efficiency
Efficiency grade(N)
Axial fan
A, C
static
0,125 ≤ P ≤ 10
ηtarget = 2,74 · ln(P) – 6,33 + N
40
10 < P ≤ 500
ηtarget = 0,78 · ln(P) – 1,88 + N
B, D
total
0,125 ≤ P ≤ 10
ηtarget = 2,74 · ln(P) – 6,33 + N
58
10 < P ≤ 500
ηtarget = 0,78 · ln(P) – 1,88 + N
Centrifugal forward curved fan and centrifugal radial bladed fan
A, C
static
0,125 ≤ P ≤ 10
ηtarget = 2,74 · ln(P) – 6,33 + N
44
10 < P ≤ 500
ηtarget = 0,78 · ln(P) – 1,88 + N
B, D
total
0,125 ≤ P ≤ 10
ηtarget = 2,74 · ln(P) – 6,33 + N
49
10 < P ≤ 500
ηtarget = 0,78 · ln(P) – 1,88 + N
Centrifugal backward curved fan without housing
A, C
static
0,125 ≤ P ≤ 10
ηtarget = 4,56 · ln(P) – 10,5 + N
62
10 < P ≤ 500
ηtarget = 1,1 · ln(P) – 2,6 + N
Centrifugal backward curved fan with housing
A, C
static
0,125 ≤ P ≤ 10
ηtarget = 4,56 · ln(P) – 10,5 + N
61
10 < P ≤ 500
ηtarget = 1,1 · ln(P) – 2,6 + N
B, D
total
0,125 ≤ P ≤ 10
ηtarget = 4,56 · ln(P) – 10,5 + N
64
10 < P ≤ 500
ηtarget = 1,1 · ln(P) – 2,6 + N
Mixed flow fan
A, C
static
0,125 ≤ P ≤ 10
ηtarget = 4,56 · ln(P) – 10,5 + N
50
10 < P ≤ 500
ηtarget = 1,1 · ln(P) – 2,6 + N
B, D
total
0,125 ≤ P ≤ 10
ηtarget = 4,56 · ln(P) – 10,5 + N
62
10 < P ≤ 500
ηtarget = 1,1 · ln(P) – 2,6 + N
Cross flow fan
B, D
total
0,125 ≤ P ≤ 10
ηtarget = 1,14 · ln(P) – 2,6 + N
21
10 < P ≤ 500
ηtarget = N

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Source: https://www.legislation.gov.uk/eur/2011/327/annex/I/division/2 (the official version)
Page: https://openlegislation.uk/eu-regulation-2011-327/annex-I/division-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.