Danfoss DSF090, Application Manual

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Compressor model
LRA RLA Max operating current Winding resistance
A A A Ω
DSF155 147 25.7 27 0.92
DSF175 158 26.4 30 0.83
DSF200 197 28.5 34 0.83
DSF270 222 38 42 0.62
DSF325 263 45 51 0.56
DSF485 389 76 80 0.28
DSF530 389 74 87 0.28
Table 21: Motor voltage code7
Compressor model
LRA RLA Max operating current Winding resistance
A A A Ω
DSF090 84 12 13 2.34
DSF100 84 13 14 2.34
DSF115 103 17 16 1.57
DSF130 103 17 18 1.57
DSF155 122 18 21 1.38
DSF175 136 22 23 1.32
DSF200 135 24 26 1.32
DSF270 181 28 35 0.94
DSF325 212 34 43 0.82
DSF485 303 54 63 0.67
DSF530 303 56 68 0.67
Table 22: Motor voltage code9
Compressor model
LRA RLA Max operating current Winding resistance
A A A Ω
DSF090 124 19 19 1.05
DSF100 124 21 20 1.05
DSF115 160 25 24 0.72
DSF130 160 26 27 0.72
DSF155 168 25 30 0.62
DSF175 177 29 34 0.57
DSF200 239 37 39 0.57
DSF270 276 43 53 0.42
DSF325 317 52 65 0.36
DSF485 479 76 96 0.29
DSF530 479 83 104 0.29
LRA (Locked Rotor Amp)
Locked Rotor Amp value is the higher average current as measured on mechanically blocked compressors tested
under nominal voltage. The LRA value can be used as a rough estimation for the starting current. However, in most
cases, the real starting current will be lower. A soft starter can be applied to reduce starting current (see section Soft
starts ).
RLA (Rated Load Amperage)
The RLA values presented are simply calculated by dividing the maximum current before tripping at overload test
conditions by 1.4.
MOC (Maximum Operating Current)
The max operating current is the amperage the compressor will draw when it operates at maximum load of
operating envelope within the voltages printed on the nameplate.
MOC can be used as a basis for contactors selection.
© Danfoss | Climate Solutions | 2023.06 AB309735209512en-000603 | 37
Scroll compressors, DSF090 to DSF530 | Electrical connections