Schaffner Group
User and Installation Manual
Ecosine evo
October 2018
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3.5 Additional electrical specifications
Ecosine evo passive harmonic filters general electrical specifications refer to operating altitudes up to 2000m
a.s.l. (6600ft).
Operation between 2000m and 4000m (6600ft and 13123ft) requires a derating for current and clearance
according to IEC 60664-1 (table A.2), hereafter enclosed:
Table 16 Altitude correction factors
Remark:
Do not use ecosine evo passive harmonic filters in altitudes above 4000m without consulting
Schaffner first.
3.6 Cooling requirement
Inlet air flow requirements for each frame size are listed in Table 17. Please notice that the filters with frame
size A, B and C do not require air cooling. For frame sizes D to H, the required inlet air flow should be fulfilled,
either by including the optional Fan module or by providing sufficient external air flow.
Table 17 Inlet air flow required for cooling
Remark:
External air flow is required for the cooling at filter’s inlet as defined in the table only for filters
without embedded ventilation.
