Siemens AC-21A 사용자 설명서

Siemens LV 10 · 2004

SENTRIC LD Main Control and EMERGENCY STOP Switches from 16 A to 125 A

7

■

The SENTRIC 3LD2 switches are used for switching main control 
and auxiliary circuits, but they are also implemented for switch-
ing three-phase induction motors and other loads for mainte-
nance and repair.

They can be used as
• On-Off switches,
• EMERCENCY-STOP switches and
• Main control switches according to EN 60204-1.

Main control and EMERGENCY-STOP switches are, in accor-
dance with IEC 60947-3/VDE 0660 Part 107 (EN 60947-3), man-
ually operated switch disconnectors and comply with the isola-
tion conditions and the requirements of machine guideline 
EN 60204-1.

■

1) Screw fixing or snap-on mounting on 35 mm rail is standard.

2) A terminal cover for the infeed side is included in the scope of supply.

3) 4th contact as N conductor to be ordered separately, see Accessories.

Number and version 
of contacts

Rated data 
at 50 Hz ... 60 Hz 
380 V ... 440 V

DT

PS*

Weight 
per PU 
approx.

DT

PS*

Weight 
per PU 
approx.

Main
contacts

Auxiliary
contacts

P/
AC-23A

u

kW

A

Order No.

kg

Order No.

kg

• Lockable in 0 position with max. 3 padlocks
• IP65 degree of protection at the front
• Front plate

– 3LD2 0, 3LD2 1, 3LD2 2: 67 mm × 67 mm
– 3LD2 5 to 3LD2 8: 90 mm × 90 mm.

3LD2 203-0TK53

3

–

7.5

16

}

1 unit

0.207 A

1 unit

0.215

9.5

25

}

1 unit

0.206 A

1 unit

0.215

11.5

32

}

1 unit

0.206 A

1 unit

0.214

22

63

}

1 unit

0.424 A

1 unit

0.443

37

100

}

1 unit

0.501

45

125

A

1 unit

0.503

3 + N

–

7.5

16

}

1 unit

0.217 A

1 unit

0.230

9.5

25

A

1 unit

0.243 A

1 unit

0.256

11.5

32

A

1 unit

0.243 A

1 unit

0.260

22

63

}

1 unit

0.424 A

1 unit

0.443

+

3)

+

3)

}

1 unit

0.079

}

1 unit

0.079

37

100

}

1 unit

0.501

+

3)

}

1 unit

0.101

45

125

A

1 unit

0.503

+

3)

}

1 unit

0.101

Actuator

>

>

black

red/yellow (EMERGENCY-STOP)