Isolator & Switch Disconnectors

Fused switch disconnectors are devices used to ensure that a circuit is completely powered down in order for it to be serviced or maintained. They isolate a given part of the circuit by cutting off its electrical supply, making it safe for service or maintenance.

Fused switch disconnectors contain multiple fuses inside the same enclosure, so that it is easy to select and isolate a particular part of the circuit. For example an isolator switch can be used in a substation to physically disconnect any circuit when repairs are being carried out.

What are fused switch disconnectors used for?

Fused switch disconnectors protect workers performing maintenance on part of an electrical circuit, as well as preventing damage to the circuit itself. The advantage of using a fused switch disconnector over a non-fused switch disconnector one is that it can provide a higher level of safety compared with unfused disconnectors, as the fuse blows in the event of breaches such as short circuits or overcurrent. This makes it certain that that part of the circuit cannot have current flowing through it while being worked on.

Types of fused switch disconnectors

Fused switch disconnectors mainly differ depending on the type of fuses they house, the number of poles they have, and the terminal type.

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Description Price Normal State Configuration Fused/Non-Fused Number of Poles Range Series Throw Configuration Enclosed/Not Enclosed Mechanical Fuse Size Fuse Current Rating Auxiliary Contacts Available Maximum Current Electrical Phase Terminal Type Mounting Type
RS Stock No. 513-5741
Mfr. Part No.3841 3039
BrandSocomec
MYR2,833.43
Each
units
- - 3P - - - - - 10A - 400 A 3 - -
RS Stock No. 762-2610
Mfr. Part No.1SCA115877R1001
BrandABB
MYR1,520.92
Each
units
- - 4P - - - - 00, 000 160A Yes 125 A 3 - DIN Rail
RS Stock No. 710-0586
Mfr. Part No.1SCA114614R1001
BrandABB
MYR1,106.35
Each
units
- - 4P - - - - A2, A3, A4 - Yes 100 A 3 - DIN Rail
RS Stock No. 513-5735
Mfr. Part No.3841 3024
BrandSocomec
MYR1,824.46
Each
units
- - 3P - - - - - 10A - 250 A 3 - -
RS Stock No. 714-1928
Mfr. Part No.SDF41G00633N
MYR2,136.14
Each
units
- - - - - - - - - - - - - -
RS Stock No. 513-5690
Mfr. Part No.3841 3006
BrandSocomec
MYR485.86
Each
units
- - 3P - - - - - 10A - 63 A 3 - -
RS Stock No. 707-6155
Mfr. Part No.2CSM200893R1801
BrandABB
MYR58.23
Each
units
- - - - - - - - - - - - - -
RS Stock No. 608-7564
Mfr. Part No.GK1ET
MYR1,023.92
Each
units
- - 4P - - - - 14 x 51mm - Yes 50A - Wire Lead -
RS Stock No. 762-2455
Mfr. Part No.OS32TPN-B
BrandABB
MYR1,558.67
Each
units
- - - - - - - - - - - - - -
RS Stock No. 762-2452
Mfr. Part No.OS100TPN-B
BrandABB
MYR4,464.79
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 218-3213
Mfr. Part No.3KD3842-0PE10-0
BrandSiemens
MYR2,206.24
Each
units
- Fused 4 SENTRON 3KD3 - - - - - 250A - - -
New
RS Stock No. 218-3204
Mfr. Part No.3KD3640-0NE10-0
BrandSiemens
MYR1,232.12
Each
units
- Fused 4 SENTRON 3KD3 - - - - - 200A - - -
New
RS Stock No. 218-3209
Mfr. Part No.3KD3642-0NE10-0
BrandSiemens
MYR1,421.68
Each
units
- Fused 4 SENTRON 3KD3 - - - - - 200A - - -
New
RS Stock No. 218-3295
Mfr. Part No.3LD2054-1TL51
BrandSiemens
MYR214.31
Each
units
- Fused 4 SENTRON 3LD - - - - - 16A - - -
New
RS Stock No. 218-3293
Mfr. Part No.3LD2030-1TL13
BrandSiemens
MYR184.82
Each
units
- Fused 4 SENTRON 3LD - - - - - 16A - - -
RS Stock No. 726-4737
Mfr. Part No.103GNC
BrandEaton
MYR5,739.50
Each
units
- - 3P + N - - - - - - - 100A 3 - -
New
RS Stock No. 212-5728
Mfr. Part No.3KD3630-0PE20-0
BrandSiemens
MYR1,226.86
Each
units
- - - - - - - - - - - - - -
RS Stock No. 708-1744
Mfr. Part No.GS2GB3
MYR729.37
Each
units
- - 3P - - - - A2, A3 - Yes - 3 Wire Lead -
RS Stock No. 204-1579
Mfr. Part No.T0-2-1/SE1/SVB
BrandEaton
MYR866.22
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 212-5736
Mfr. Part No.3KD4830-0QE20-0
BrandSiemens
MYR5,107.52
Each
units
- - - - - - - - - - - - - -