The + 24V DC connection must be connected to X8.3 and the ground of the 24V DC voltage supply must be connected to X8.4.

Selection criteria for the external power supply:

• First, the maximum continuous

current which the CubicleBUS

modules draw from the

A power supply must be selected in accordance with these two characteristic values. Several WL Circuit Breakers can be connected to one power supply. For this purpose, however, the total of the continuous currents must be considered. For example, the 6EP1332-2BA00 power supply can

be used with up to 3 ETUs and up to 16 CubicleBUS modules simultaneously. The 6EP1332- 1SH42 power supply can be used with 2 ETUs and up to 8 CubicleBUS modules simultaneously.

CubicleBUS supply must be

calculated. (see Table 2-23)

• Second, the peak inrush current

of all modules must be

calculated. The power supply

must be capable of bearing the

maximum peak inrush current

for a period of 100 ms.

Selecting a suitable power supply from the Siemens product line

Output current

Inrush current

Type

Order No.

 

 

 

 

2.5 A

< 30 A

Logo! Power

WLSITOP25

 

 

 

 

3.8 A

< 32 A

SITOP Power

WLSITOP1

 

 

 

 

Table 2-24A Siemens power supply can be selected for one or more WL Circuit Breakers.

One WLSITOP1 can power the following combinations of accessories

For example: (2) ETU745 + (2) Metering Functions + (2) COM16 + (16) Digital CubicleBUS modules + (8) Analog CubicleBUS modules + (1) BDA

ETU745-776

Metering

COM16 or COM15

ZSI/Digital CubicleBUS modules Analog CubicleBUS modules BDA/BDA Plus

6

0

0

0

0

0

5

0

0

16

2

1

5

5

0

8

1

1

5

0

5

0

0

0

4

4

04

00

32 25

53

0 1

4

0

4

16

2

1

4

3

3

3

4

0

3

0

4

0

0

3

13

24

24

24

2

7

6

5

1

1

1

1

32

30

30

24 16

59

1 1

2

2

0

16

9

1

2 2

02

2 2

16

16

8

8

1

1

One WLSITOP25 can power the following combinations of accessories

For example: (2) ETU776 + (2) Metering Functions + (2) COM16 + (16) Digital CubicleBUS modules + (5) Analog CubicleBUS modules + (1) BDA

ETU745-776

Metering

COM16 or COM15

ZSI/Digital CubicleBUS modules Analog CubicleBUS modules BDA/BDA Plus

4

0

0

12

2

0

4

4

0

8

1

0

4

4

0

6

1

1

4

0

4

0

0

0

3

0

0

24

4

1

3

3

0

24

4

0

3

3

0

23

3

1

3

0

3

16

2

1

3

3

3

13

2

1

2

0

0

16

6

1

2

2

0

16

6

1

2

0

2

16

5

1

2

2

2

16

5

1

2/34

WL MODBUS Communication and Electronic Accessories • January 2005

Page 45
Image 45
Siemens UL 489, UL1066 specifications Output current Inrush current Type Order No

UL 489, UL1066 specifications

Siemens UL1066 and UL489 are essential components in the landscape of electrical equipment, specifically in circuit protection and control. These standards ensure reliability, safety, and efficiency in various applications, including industrial, commercial, and residential settings.

The Siemens UL1066 is primarily focused on disconnect switches. These devices are designed to isolate electrical circuits, ensuring the safety of both personnel and equipment during maintenance or in case of faults. One of the key features of UL1066 disconnect switches is their high breaking capacity, enabling them to handle significant fault currents without failure. This characteristic is crucial in protecting downstream equipment from damage caused by short circuits. The UL1066 switches are also known for their robust construction, often featuring a metal enclosure that enhances durability and environmental resistance. Additionally, these switches can be operated manually or remotely, offering flexibility in operation and control.

On the other hand, Siemens UL489 circuit breakers provide comprehensive protection against overcurrents and short circuits. These devices not only interrupt fault currents but also protect connected devices from damage due to overload situations. Key features of UL489 circuit breakers include adjustable trip settings, which allow users to customize the response to overcurrent conditions based on specific application requirements. This adaptability makes them suitable for a wide range of environments, from large industrial plants to smaller commercial buildings.

Both UL1066 and UL489 products are constructed with advanced technologies, such as thermal-magnetic or electronic trip mechanisms in UL489 devices, ensuring precise and timely interruption of fault currents. These technologies promote energy efficiency and stability within electrical systems. In addition, many of these devices are equipped with indication features, providing clear visual status cues for quick assessment in emergency situations.

In terms of characteristics, both UL1066 and UL489 devices adhere to rigorous testing and certification processes to meet UL standards. This compliance assures users of their performance and reliability. Furthermore, the devices are designed to accommodate a wide range of operating temperatures and environmental conditions, making them versatile choices for various applications.

In summary, Siemens UL1066 and UL489 devices are paramount in ensuring safety and efficiency in electrical circuits. Their advanced features and robust construction make them indispensable in protecting both personnel and equipment in an array of industrial and commercial applications.