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Fuses and fuse systems, Introduction – Siemens AC-21A User Manual

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Siemens LV 10 · 2004

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Fuses and Fuse Systems

Introduction

7

1) If a cyclic load is applied, it may be necessary to further reduce the cur-

rents (please inquire about precise values).

Further information

Further combinations are available on request!

For further information on fuses, see Catalog
SITOR Configuration, Order No.: E20001-A700-P302-X-7600.

For switch disconnectors

SITOR semiconductor protection fuse

Type

Type

Permissible load cur-
rent of the SITOR
semiconductor protec-
tion fuse in the switch
disconnector

1)

Required conductor
cross-section
Cu

Size

Opera-
tional
class

Rated
current

Rated
voltage

DT

Order No.

PS*

Weight
per PU
approx.

A

mm

2

A

V

kg

For SENTRIC 3KL5, 3KL6 and 3KM5 switch disconnectors with fuses

3KL50

3KM50

25

4

00

gR

25

690

}

3NE8 015–1

1 unit

0.205

33

6

35

}

3NE8 003–1

1 unit

0.204

45

10

50

}

3NE8 017–1

1 unit

0.203

54

16

63

}

3NE8 018–1

1 unit

0.205

3KL52

3KM52

68

25

aR

80

690

}

3NE8 020–1

1 unit

0.203

89

35

100

}

3NE8 021–1

1 unit

0.205

105

50

125

}

3NE8 022–1

1 unit

0.213

130

70

160

}

3NE8 024–1

1 unit

0.207

3KL55

3KM55

32

6

0

gR

32

1000

}

3NE4 101

1 unit

0.278

40

10

40

}

3NE4 102

1 unit

0.277

50

10

50

}

3NE4 117

1 unit

0.276

63

16

63

}

3NE4 118

1 unit

0.279

80

25

aR

80

1000

}

3NE4 120

1 unit

0.276

95

35

100

}

3NE4 121

1 unit

0.278

120

50

125

}

3NE4 122

1 unit

0.279

150

70

160

}

3NE4 124

1 unit

0.279

3KL55

3KM55

90

35

1

aR

100

1000

}

3NE3 221

1 unit

0.580

110

50

125

}

3NE3 222

1 unit

0.568

140

70

160

}

3NE3 224

1 unit

0.573

175

95

200

}

3NE3 225

1 unit

0.570

210

120

250

}

3NE3 227

1 unit

0.580

3KL57

3KM57

240

185

aR

315

1000

}

3NE3 230–0B

1 unit

0.585

265

240

350

}

3NE3 231

1 unit

0.590

290

240

400

}

3NE3 232–0B

1 unit

0.576

320

2 × 150

450

}

3NE3 233

1 unit

0.720

3KL61,

3KM57

340, 360 (290)

2)

240

2

aR

400

1000

}

3NE3 332–0B

1 unit

0.759

3KL62

380, 400 (320)

2)

2 × 150

450

}

3NE3 333

1 unit

0.748

440, 470 (360)

2)

2 × 150

500

}

3NE3 334–0B

1 unit

0.753

500, 530 (400)

2)

2 × 185

560

}

3NE3 335

1 unit

0.756

540, 580 (400)

2)

2 × 185

aR

630

1000

}

3NE3 336

1 unit

0.760

600, 640 (400)

2)

2 × 200

710

900

}

3NE3 337–8

1 unit

0.762

630, 720 (400)

2)

2 × 200

800

800

}

3NE3 338–8

1 unit

0.764

630, 800 (460)

2)

2 Ч (50 Ч 5)

900

690

B

3NE3 340–8

1 unit

0.753

3KL61,

200, 200 (175)

2)

120

aR

250

800

}

3NE4 327–0B

1 unit

0.753

3KL62

260, 260 (230)

2)

240

315

}

3NE4 330–0B

1 unit

0.760

370, 370 (340)

2)

240 or 40 × 8

450

}

3NE4 333–0B

1 unit

0.760

425, 450 (380)

2)

2 Ч (30 Ч 5)

500

800

}

3NE4 334–0B

1 unit

0.754

600, 630 (400)

2)

2 Ч (40 Ч 5)

710

800

}

3NE4 337

1 unit

0.761

3KL61,

145

70

3

gR

150

500

}

3NC2 423–3

3 units

1.060

3KL62

180

95

200

}

3NC2 425–3

3 units

1.050

225

120

250

}

3NC2 427–3

3 units

1.060

255

185

gR

300

500

}

3NC2 428–3

3 units

1.070

330

240

350

}

3NC2 431–3

3 units

1.050

400

240

400

}

3NC2 432–3

3 units

1.060

135

70

gR

150

660

}

3NC8 423–3

3 units

1.060

180

95

200

}

3NC8 425–3

3 units

1.060

225

120

250

}

3NC8 427–3

3 units

1.060

300

240

350

}

3NC8 431–3

3 units

1.070

425

2 × 150

500

}

3NC8 434–3

3 units

1.060

800 (630)

2 Ч (60 Ч 6)

aR

1000

600

C

3NC8 444–3

1 unit

1.080

* This quantity or a multiple thereof can be ordered.

This manual is related to the following products: