SF 4
SF 4
SF 6
SF 6
Frequency
Voltage
Overload relay
Maximum fuse
Overload relay
Maximum fuse
50 Hz
200 V 3~
17.3 A
50A
25.7A
50 A
50 Hz
230 V 3~
15.0 A
40 A
22.3 A
40 A
50 Hz
400 V 3~
8.7 A
16 A
12.8 A
25 A
50 Hz
400 V + N 3~
8.7 A
16 A
12.8 A
25 A
60 Hz
380 V 3~
8.7 A
16 A
12.8 A
25 A
UL/CUL
60 Hz
200 V 3~
16.6 A
25/25/30 A
*
25.2 A
40/40/45 A
*
60 Hz
208 V
--
--
24.3 A
40/40/45 A
*
60 Hz
230 V 3~
15.2 A
25/25/30 A
*
24.0 A
40/40/45 A
*
60 Hz
460 V 3~
7.6 A
10/10/15 A
*
12.0 A
20/20/20 A
*
60 Hz
575 V 3~
5.9 A
10/10/10 A
*
8.8 A
15/15/15 A
*
*
: Maximum fuses according HRCII-C, according Class K5 for units without refrigerant dryer and
according Class K5 for units with refrigerant dryer respectively.
8.4
Temperature protection and safety valve settings
Temperature shut-down switch settings (TSHH)
Compressor element outlet temperature
Opens at
SF 1 (8 bar / 116 psi)
70 °C (158 °F)
SF 1 (10 bar / 145 psi)
80° C (176 °F)
SF 2 (8 bar and 10 bar / 116 and 145 psi)
70 °C (158 °F)
SF 4 (8 bar and 10 bar / 116 and 145 psi)
70 °C (158 °F)
SF 6 (8 bar and 10 bar / 116 and 145 psi)
195 °C (383 °F)
Safety valve (SV)
Pressure version
Set pressure
Unit
8 bar compressors
8.8
bar(e)
116 psi compressors
135
psi(g)
10 bar compressors
11
bar(e)
145 psi compressors
160
psi(g)
8.5
Reference conditions and limitations
Reference conditions
Air inlet pressure (absolute)
bar
1
Instruction book
2920 7110 11
43
Summary of Contents for SF 1
Page 1: ...Atlas Copco Oil free scroll compressors SF 1 SF 2 SF 4 SF 6 Instruction book ...
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