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Power connections – Eaton Electrical SPI9000 User Manual

Page 33

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SPI9000 Inverter Unit FI9 – FI14 User Manual

MN04004002E

For more information visit: www.EatonElectrical.com

3-9

September 2006

Power Connections

DC Supply and Motor Cables

The power cables are connected to terminals DC+ and DC- (R+/B+ and DC terminals when
using an external charging circuit) and the motor cables to terminals U, V and W. A cable
entry gland should be used at the motor cable end to reach the EMC levels, see Table 3-2.

Use cables with a heat resistance of at least +60C. The cables and the fuses must be sized
according to the inverter nominal output current which you can find on the rating plate.
Installation of cables according to UL regulations is presented on Page 3-17 and aR fuse sizes
in Tables 3-2 and 3-3 below.

If the motor temperature protection of the drive is used as an overload protection, the cable
shall be chosen accordingly. If three or more cables are used in parallel for bigger units, each
cable requires a separate overload protection.

These instructions apply only to installations with one motor and one cable connection from
the inverter to the motor. In any other case, ask the factory for more information.

Table 3-1: Cable Types Required to Meet Standards

Fuses, 465 – 800V DC Inverters

Table 3-2: Fuses Used in 465 – 800V DC Inverters

Cable Type

EMC Level T

Supply Cable

Power cable intended for fixed installation and the specific DC voltage.
Shielded cable not required.

Motor Cable

Power cable equipped with concentric protection wire and intended for the
specific mains voltage.

Control Cable

Screened cable equipped with compact low-impedance shield.

Nominal
Current

Frame

Bussman aR
Fuse Type

Fuse Size

Fuse U

n

(V)

Fuse I

n

(A)

No. of Fuses

140

FI9

170M3819

DIN1

690

400

2

170

FI9

170M3819

DIN1

690

400

2

205

FI9

170M6812

DIN3

690

800

2

245

FI9

170M6812

DIN3

690

800

2

300

FI10

170M8547

3SHT

690

1250

2

385

FI10

170M8547

3SHT

690

1250

2

460

FI10

170M8547

3SHT

690

1250

2

520

FI12

170M8547

3SHT

690

1250

4

590

FI12

170M8547

3SHT

690

1250

4

650

FI12

170M8547

3SHT

690

1250

4

730

FI12

170M8547

3SHT

690

1250

4

820

FI12

170M8547

3SHT

690

1250

4

920

FI12

170M8547

3SHT

690

1250

4

1030

FI13

170M8547

3SHT

690

1250

6

1150

FI13

170M8547

3SHT

690

1250

6

1300

FI13

170M8547

3SHT

690

1250

6

1600

FI14

170M8547

3SHT

690

1250

2 x 6

1940

FI14

170M8547

3SHT

690

1250

2 x 6

2300

FI14

170M8547

3SHT

690

1250

2 x 6