Electrical Data, Connections And Wiring; Motor Voltage; Wiring Connections - Danfoss R134a Application Manuallines

Application Guidelines

Motor voltage

Nominal voltage
Voltage range
Nominal voltage
Voltage range
* SY 380

Wiring connections

SM / SZ 084 - 090 - 100 - 110
- 112 - 120 - 124 - 147* -148*
- 161*
*Except for motor voltage
code 3
SM/SZ 147 code 3
SM / SZ148 & 161 code
3-175-185 & SY185 - R & C
version
16
AB237986441643en-010801

Electrical data, connections and wiring

Danfoss SM / SY / SZ scroll compressors are available in five different motor voltages.
Motor voltage
code 3
380 - 400 V - 3 ph
-
50 Hz
380 - 415 V - 3 ph*
-
50 Hz
200 - 230 V - 3 ph
60 Hz
180 - 253 V
60 Hz
According to compressor model, electrical power is connected to the compressor terminals either by
4.8mm (10-32) screws or by M5 studs and nuts. In both cases the maximum tightening torque is 3 Nm.
The terminal box is provided with a Ø 25.5 mm
and a Ø 29 mm knockouts.
The terminal box is provided with a Ø 40.5
mm hole for power supply and a Ø 16.5 mm
knockout.
The terminal box is provided with 2 double
knockouts for the power supply and 3 knockouts
for the safety control circuit.
The 2 power supply, double knockouts
accommodate the following diameters:
• Ø44 mm / Ø1"3/4 hole (for a 1"1/4 conduit) and
Ø34mm / Ø1"3/8 hole (for a 1" conduit),
• Ø32.1 mm / Ø1.26" hole & Ø25.4 mm / Ø1" hole
The 3 other knockouts are as follows:
• Ø20.5 mm / Ø0.81"
• Ø22 mm / Ø7/8" (for a 1/2" conduit)
• Ø16.5 mm / Ø0.65"
Motor voltage Motor voltage
code 4 code 6
230 V - 3 ph
342 - 440 V
207 - 253 V
342 - 457 V *
460 V - 3 ph -
414 - 506 V -
Motor voltage Motor voltage
code 7
500 V - 3 ph
450 - 550 V
380 V - 3 ph
575 V - 3 ph
380 - 400 V - 3 ph*
342 - 418 V
517 - 632 V
342 - 440 V*
Terminal box
Ø 25.5 mm knockout
Ø 29 mm knockout
Power supply
Ø 40.5 mm hole
Ø 16.5 mm
knockout
Power supply
Cover holding screw (x2) - Torque: 2.2 Nm
Terminal box
Sump heater
Faston 1/4" tabs
Power supply
code 9
-
-