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Switch Fuses
& Accessories

Our range of switch disconnectors have been designed to complement both the FCS & TPN panelboard ranges by providing individual protection and control of individual circuits up to 800A.

Descriptions & Part Numbers

Switch Fuses
DescriptionCat ref.
4 Module Metal Unit 1 x 100A Isolator, AC22A
Connection capacity: 50mm² rigid conductor,
35mm² flexible conductor, 1 x 63A Fuse
IU4-16
4 Module Metal Unit 1 x 100A Isolator, AC22A
Connection capacity: 50mm² rigid conductor, 35mm² flexible conductor, 1 x 80A Fuse
IU44-18
4 Module Metal Unit 1 x 100A Isolator, AC22A
Connection capacity: 50mm² rigid conductor,
35mm² flexible conductor, 1 x 100A Fuse
IU44-11
Switch Fuses - Accessories
DescriptionCat ref.
Keylock with 2 keys suitable for all enclosures fitted with door - IU enclosure
IKL1
Keylock with 2 keys suitable for all enclosures fitted with door - JK enclosure
JK222A

Switch Fuse Amp Technical Details

Enclosed thermal current lthe203263100125160200250315400630800
Rated insulation voltage Ui (V)
800
800
800
800
800
800
800
800
800
800
1000
1000
Rated thermal current lthe (A)
20
32
63
100
125
160
200
250
315
400
630
800
Rated operational current
 
 
 
 
 
 
 
 
 
 
 
 
AC21A 500VAC
20
32
63
100
125
160
160
250
250
250
630
800
AC22A
20
32
63
100
125
125
125
250
250
250
500
800
AC21A 690VAC
20
32
63
100
125
160
160
200
200
200
500
800
AC22A
20
32
63
100
125
125
125
125
125
125
315
800
Overload capacity
 
 
 
 
 
 
 
 
 
 
 
 
Icw rated short time withstand value (kA/s)
1.26
1.26
1.5
1.5
7
7
7
9
9
9
13
26
R.M.S value (kA)
0.16
0.256
0.504
0.64
1
1.28
1.28
2
2
2
5.04
6.4
Peak withstand value (kA)
-
-
-
-
20
20
18
30
23
23
45
55
Rated short circuit making capacity (kA)
1.8
1.8
2.1
2.1
11.9
11.9
11.9
15.3
15.3
15.3
26
54.6
Rated impulse withstand voltage Uimp (kV)
8
8
8
8
8
8
8
8
8
8
12
12
Mechanical endurance
(number of operations)
100
000
100
000
100
000
100
000
100
000
100
000
100
000
100
000
100
000
5
000
5
000
5
000
Maximum cable size
16
16
50
50
50
95
95
150
185
240
2x300
2x300
Tightening torque (Nm)
2
2
4
4
9
9
9
20
20
20
20
-

Switch Fuses Dimensions

Click to zoom
Part No:Width (mm)Height (mm)Depth (mm)ConnectionKnockouts
IU4-16
115
187
61.5
Earth only
2 x 25mm
IU44-18
125
312
73.5
Earth only
None
IU44-11
125
312
73.5
Earth only
None