11.6.1 Sound pressure level
Motor
[Hp (kW)]
Maximum
speed
stated on
nameplate
[min
-1
]
Speed
[min
-1
]
Sound pressure level
ISO 3743
[dB(A)]
1-phase
motors
3-phase
motors
0.33 - 1
(0.25 - 0.75)
2000
1500 37 37
2000 43 43
4000
3000 50 50
4000 60 60
5900
4000 58 58
5900 68 68
1 1/2
(1.1)
2000
1500 37
2000 43
4000
3000 50 50
4000 60 60
5900
4000 58 58
5900 68 68
2
(1.5)
2000
1500 42
2000 47
4000
3000 57 57
4000 64 64
5900
4000 58 58
5900 68 68
3
(2.2)
2000
1500 48
2000 55
4000
3000 57
4000 64
5900
4000 58
5900 68
5 (4)
2000
1500 48
2000 55
4000
3000 61
4000 69
5900
4000 64
5900 74
7 1/2 (5.5)
2000
1500 58
2000 61
4000
3000 61
4000 69
5900
4000 64
5900 74
10 (7.5)
2000
1500 58
2000 61
4000
3000 66
4000 73
5900
4000 69
5900 79
Motor
[Hp (kW)]
Maximum
speed
stated on
nameplate
[min
-1
]
Speed
[min
-1
]
Sound pressure level
ISO 3743
[dB(A)]
1-phase
motors
3-phase
motors
15 (11)
4000
3000 66
4000 73
5900
4000 69
5900 79
The grey fields indicate that the motor is not available in this MLE
motor range.
12. Disposing of the product
This product or parts of it must be disposed of in an environmentally
sound way.
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest Grundfos company or
service workshop.
The crossed-out wheelie bin symbol on
a product means that it must be
disposed of separately from household
waste. When a product marked with
this symbol reaches its end of life, take
it to a collection point designated by
the local waste disposal authorities.
The separate collection and recycling
of such products will help protect the
environment and human health.
See also end-of-life information at www.grundfos.com/product-
recycling.
13. Document quality feedback
To provide feedback about this document, scan the QR-code using
your phone’s camera or a QR code app.
FEEDBACK98566351
Click here to submit your feedback
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