OS

OS

OS

OS

OS

Switch size

A

32

50

63

125

160

Rated insulation voltage

Pollution degree 3

V

1 000

1 000

1 000

1 000

1 000

Dielectric strength

50 Hz 1min.

kV

10

10

10

10

10

Rated impulse withstand voltage

kV

12

12

12

12

12

Rated thermal current in ambient 40 °C 2) /

In enclosure

A/W 32/7.5 50/7.5 63/7.5 125/12 160/12

max. fuse power dissipation1)

...with minimum cable cross section

Cu

mm2

6

10

16

50

70

Rated operational voltage AC-20 and DC-20

V

1 000

1 000

1 000

1 000

1 000

Rated operational current, AC-21

up to 500 V

A

32

50

63

125

160

690 V

A

32

50

63

125

160

Rated operational current, AC-22

up to 500 V

A

32

50

63

125

160

690 V

A

32

50

63

125

160

Rated operational current, AC-23

up to 500 V

A

32

50

63

125

160

690 V

A

32

50

63

125

160

Rated operational power, AC-234)

The kW-ratings are accurate

230 V

kW

7.5

11

18.5

37

45

for three-phase 1500 R.P.M.

400 V

kW

15

22

30

55

75

standard asynchronous motors. 415 V

kW

15

22

30

55

75

500 V

kW

18.5

30

37

75

90

690 V

kW

22

37

55

110

132

Rated breaking capacity in category AC-23

up to 690 V

A

504

504

504

1280

1280

Rated conditional short-circuit current

I

p (r.m.s.)

100 kA, 500 V

kA

12

12

12

25

25

I

p (r.m.s.) and corresponding max. allowed

Fuse size

OFAA/OFAM

A

63/63

63/63

63/63 160/160 160/160

cut-off current î

c

Power loss / pole

With rated current, without fuse

W

1

2.5

4

5

9

Mechanical endurance

Divide by two for oper. cycles

Oper. 20 000 20 000 20 000 20 000 20 000

Fuse types, IEC 60269-2-1

DIN 43620

000

000

000, 00 000, 00

NFC 63210, 63211

14x51

22x58

BS 88-2, -6 -size /

A2-A3

A2-A3 A2-A43) A2-A43)

distance of fuse-link bolts

mm

M5/73

M5/73 M5/73,

M8/94

M5/73,

M8/94

Weight without accessories

3-pole switch fuses

kg

1.3

1.3

1.3

1.5

1.5

4-pole switch fuses

kg

1.6

1.6

1.6

1.8

1.8

Built-in terminal size

Cu

mm2 2.5...25 2.5...25 2.5...25

Terminal bolt size (included)

Metric thread diameter x length

mm

M8x25 M8x25

Terminal tightening torque

Counter torque required

Nm

3.5

3.5

3.5

15-22

15-22

Fuse-links bolts tightening torque

Nm

3.5

3.5

M5:3.5

M8:5

M5:3.5

M8:5

Operating torque

Typical for 3-pole switch fuses

Nm

5

5

5

7

7

Technical data according to IEC 60947-3

Placing options of the operating mechanism

At the end of the switch

fuse OS_03 or 04

Between the poles

OS_12 or 22

Side operated types OS_30 or 40

OS_03 or 04

Switch fuses OS32...160 A Gamma Series | Technical data 3

1)

Ambient temperature 60 °C: derating 20%.

2)

Acc. to IEC 60947-1, § 6.1.1.

3)

Max. fuse body diam. 32 mm.

The technical data is valid at the time of printing.

We reserve the right to subsequent alterations.

4)

Some fuse links limit these figures further.

Starting current characteristics must be

considered separately

Technical data

Switch fuses OS32G_...160G_