The temperature inside the terminal box may not
exceed 158°F. Consequently, if the compressor
is installed in an enclosure, precautions must be
taken to avoid that the temperature around the
compressor and in the terminal box would rise
too much. The installation of ventilation on the
enclosure panels may be necessary. If not, the
electronic protection module may not operate
properly. Any compressor damage related to this
will not be covered by Danfoss warranty. In the
same manner, cables must be selected in a way
to insure that terminal box temperature does not
exceed 158°F.
Terminal box temperature
Electrical data, connections and wiring
Three phase electrical characteristics
Locked Rotor Amp value is the higher current as
measured on mechanically blocked compressor
tested under nominal voltage. The LRA value
can be used as 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.
LRA (Locked Rotor Amp)
Compressor model
LRA
MCC
MMT
Max. op. current
Winding resistance
A
A
A
A
Ω
Motor voltage code 3
200-230V/3 ph/60 Hz
SM/SZ084
170
35
35
0.44
SM/SZ090
195
35
34
0.38
SM/SZ100
195
38
32
0.38
SM/SZ110
237
45
40
0.26
SM112
267
51
41
0.27
SM/SZ120
237
50
48
0.26
SM/SZ124
267
51
45
0.27
SM/SZ147
304
57
52
0.24
SM/SZ148
255
64
57
0.29
SM/SZ161
255
64
61
0.29
SM/SZ175 *
380
75
70
0.19
SM/SZ185 *
380
75
73
0.19
SY/SZ240
460
109
100
0.14
SY/SZ300
560
130
130
0.12
Motor voltage code 4
380-400V/3 ph/50 Hz
460V/3 ph/60 Hz
SM/SZ084
86
17
17
1.74
SM/SZ090
98
18.5
17
1.48
SM/SZ100
98
19
18
1.48
SM/SZ110
130
22
20
1.05
SM/SZ112
142
25
21
1.05
SM/SZ120
130
29
24
1.05
SM/SZ124
142
25
23
1.05
SM/SZ147
147
29
26
0.92
SM/SZ148
145
32
29
0.94
SM/SZ161
145
32
31
0.94
SM/SZ175 *
175
35
34
0.77
SM/SZ185 *
175
35
35
0.77
SY/SZ185
175
35
34
0.77
SY/SZ240
215
50
47
0.62
SY/SZ300
270
69
58
0.52
SY/SZ380
300
79
69
0.46
Motor voltage code 7
500V/3 ph/50 Hz
575V/3 ph/60 Hz
SM/SZ084
70
13
13
2.58
SM/SZ090
80
14
13
2.25
SM/SZ100
80
15
13
2.25
SM/SZ110
85
18
16
1.57
SM/SZ120
85
19
18
1.57
SM/SZ148
102
27
23
1.61
SM/SZ161
102
25
24
1.61
SM/SZ175 *
140
28
27
1.11
SM/SZ185 *
140
28
28
1.11
SY/SZ240
180
40
39
0.94
SY/SZ300
210
49
49
0.80
Motor voltage code 9
380V/3 ph/60 Hz
SM/SZ084
100
20
20
1.22
SM/SZ090
113
22
20
1.05
SM/SZ100
113
22
19
1.05
SM/SZ110
160
27
23
0.72
SM/SZ112
177
32
24
0.72
SM/SZ120
160
30
28
0.72
SM/SZ124
177
32
27
0.72
SM/SZ147
181
35
31
0.62
SM/SZ148
155
38
36
0.75
SM/SZ161
155
38
38
0.75
SM/SZ175 *
235
43
42
0.48
SM/SZ185 *
235
43
43
0.48
SY/SZ240
260
62
62
0.42
SY/SZ300
305
74
74
0.36
* For versions with electronic module, see datasheet for electrical data
17
FRCC.PC.003.A5.22
Application guidelines