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M-SV-001-EN Rev. G
4.11.1.3 Mains Plate Torque Specifications
Table 4-18 Mains Plate Torque Specifications
4.12 3-Phase Main Voltage Input Terminal Block
The Terminal Block is the location where the compressor receives 3-Phase AC voltage, even when not
running. All compressors must be fitted with class T fast-acting fuses to protect the solid-state Inverter.
Danfoss Turbocor control does NOT directly measure 3-phase power values. All 3-phase voltage
information displayed in the SMT is calculated from DC bus voltage and motor power as measured by
the Inverter. The input voltage varies between 380-575VAC at a frequency of 50/60Hz.
There are two (2) different configurations of the Terminal Blocks, one for the TTS300/TGS230 series
and another for all other TTS/TGS/TTH/TGH series. With the introduction of Revision H compressors, all
compressors, except for the TTS300/TGS230 compressors, have an upgraded Terminal Block design.
Refer to "Figure 4-79 Input Terminal Block - TTS300/TGS230" for TTS300/TGS230 compressors. For all
other compressors that are Revision G and earlier, refer to "Figure 4-81 Input Terminal Block - TTS/TGS/
TTH/TGH Rev. F and Earlier (Except TTS300/TGS230)" on page 96 and for all other compressors that
are Revision H, refer to "Figure 4-80 Input Terminal Block - TTS/TGS/TTH/TGH Rev. H (Except TTS300/
TGS230)" on page 96.
Figure 4-79 Input Terminal Block - TTS300/TGS230
Description Nm Ft.Lb. In.Lb.
Mains Plate Mounting Screw, M6x16 7 - 62
Cover Fastener, M5x15 1.5 - 13
Upper Nut, 5/16" - 18 UNC 10 7 89
Jam Nut, 5/16" - 18 UNC 7 - 62
Lower Nut, 5/16" - 18 UNC 20 15 177
Mains Input Nut, 3/8" - 16 UNC (excludes TT300/TG230 compressors) 21 15 186
Mylar
Terminal
Block
Fuse Assembly
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