Siemens BT300 LonWorks User manual

Installation Instructions

Document No. DPD01160D

December 4, 2019

BT300 HVAC Drives Main Switch

Page 1 of 4

Product Description

The main switch is used for switching off the input

power of the drive. This option is available for frames

FS4-FS7 with Type 12/IP54 protection class and

maximum output current 88A. See Table 1 for more

information. The main switch is both CE and UL

listed.

Product Numbers

See Table 1.

Warning/Caution Notations

WARNING:

Personal injury or loss of life

may occur if you do not follow

the procedures as specified.

CAUTION:

Equipment damage or loss of

data may occur if you do not

follow the procedures as

specified.

CAUTION:

The main switch is a safety device. Do not use

the main switch when the drive is in operation.

NOTE:

An additional auxiliary contact switch is provided

with the main switch option. This contact switch

helps to receive status information of the main

switch for PLC, and so on.

Required Tools

•Phillips head screwdriver

•Flat-blade screwdriver

Expected Installation Time

15 minutes

Item Number DPD01160D

Installation

1. Remove the drive cover.

Figure 1.

2. Remove the two screws from the main

switch and tilt the switch to the left.

Figure 2.

3. Connect motor cable M(see Figure 4).

Tighten the screws according to the

tightening torques in Table 1. Check the

tightening of the factory-installed main

switch cable.

NOTE:

Remember to use the cable grommets

provided with the drive. See Siemens BT300

HVAC Drive Installation Instructions

(DPD01148) for detailed cable installation

instructions.

Document No. DPD01160D

Installation Instructions

December 4, 2019

Page 2 of 4

Figure 3.

4. To attach the cables. fold the cable shield

backwards onto the cable and attach the

cable with a cable clamp on the shield.

NOTE:

See Siemens BT300 HVAC Drive

Installation Instructions (DPD01148) for

detailed cable installation instructions.

Figure 4.

5. Install supply cable Sand connect it to the

main switch (see Figure 5).

NOTES:

1. If possible, protect the cables closest to

the main switch with an insulation tube.

2. See Siemens BT300 HVAC Drive

Installation Instructions (DPD01148) for

detailed cable installation instructions.

Figure 5.

Figure 6. Motor and Supply Cable Installation

as Seen from Above.

6. Attach the main switch screws.

Figure 7.

7. Tighten the supply cable screws according

to the tightening torques in Table 2. Check

the tightening of the factory-installed cable

connection screws on the right side of the

main switch.

Figure 8.

Connecting the data cable

Do one of the following:

•For FS4: Connect Data Cable Dunder the

main switch, and attach it.

•For FS5 through FS7: Connect the data

cable to the terminal around the main

switch.

Document No. DPD01160D

Installation Instructions

December 4, 2019

Page 3 of 4

NOTES:

1. If possible, protect the cables closest to

the main switch with an insulation tube.

2. See Siemens BT300 HVAC Drive

Installation Instructions (DPD01148) for

detailed cable installation instructions.

Figure 9.

Figure 10. Data Cable Installation in FS4

as Seen from Above.

8. Close the drive cover.

Figure 11.

Cable requirements

The following table shows the maximum sizes for the

cables to be used with the main switch.

NOTE:

Only use copper cables with the main switch option,

do not use aluminum cables.

The installation is now complete.

Document No. DPD01160D

Installation Instructions

December 4, 2019

Information in this document is based on specifications believed correct at the time of publication. The right is reserved to

make changes as design improvements are introduced.Product or company names mentioned herein may be the trademarks

Siemens Industry, Inc.

Smart Infrastructure

1000 Deerfield Parkway

Buffalo Grove, IL 60089-4513

Your feedback is important to us. If you have

comments about this document, please send them

to [email protected].

Document No. DPD01160D

Printed in the USA

Page 4 of 4

Table 1. Cable Data for Main Switch Option.

Frame

Size

Type

Maximum Main

and Motor

Cable Size

(Cu)

Main Switch

Screws Tightening

Torque

lbf-in (Nm)

Supply Cable

Insulation Tube Size

Diameter/Length,

In (mm)

FS4

BT300-001X2…

AWG14

7.08

(0.8)

10/70

(2.75/0.39)

BT300-00152…

BT300-002X2…

BT300-003X2…

BT300-00154…

BT300-002X4…

BT300-003X4…

BT300-005X4…

BT300-00754…

FS5

BT300-005X2…

AWG10

7.08

(0.8)

16/80

(3.14/0.62)

BT300-00752…

BT300-010X2…

AWG8

BT300-010X4…

AWG10

BT300-015X4…

BT300-020X4…

AWG8

BT300-003X6…

AWG14

BT300-005X6…

BT300-00756…

BT300-010X6…

FS6

BT300-015X2…

AWG4

17.70

(2)

20/80

(3.14/0.78)

BT300-020X2…

BT300-025X4…

BT300-030X4…

BT300-040X4…

BT300-015X6…

AWG8

BT300-020X6…

BT300-025X6…

BT300-030X6…

AWG4

FS7

BT300-025X2…

AWG2

53.10

(6)

25/0

(3.14/0.98)

BT300-030X2…

BT300-050X4…

BT300-060X4…

BT300-040X6…

AWG4

BT300-050X6…

BT300-060X6…

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