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.

...
Read more Read less

Filters

Viewing 181 - 200 of 308 products
Results per page
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
New
RS Stock No. 212-5807
Mfr. Part No.3LD3230-0TL11
BrandSiemens
SGD73.07
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 212-5817
Mfr. Part No.3LD3430-0TK11
BrandSiemens
SGD85.13
Each
units
- - - - - - - - - - - - - -
RS Stock No. 708-1772
Mfr. Part No.GS2NB4
SGD955.86
Each
units
- - 4P - - - - B1, B2, B3 - Yes - 3 Wire Lead -
New
RS Stock No. 212-5815
Mfr. Part No.3LD3340-0TL11
BrandSiemens
SGD140.11
Each
units
- - - - - - - - - - - - - -
RS Stock No. 710-0576
Mfr. Part No.1SCA114610R1001
BrandABB
SGD191.10
Each
units
- - 4P - - - - A2, A3 - Yes 32 A 3 Screw DIN Rail
New
RS Stock No. 212-5728
Mfr. Part No.3KD3630-0PE20-0
BrandSiemens
SGD425.64
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 212-5812
Mfr. Part No.3LD3330-0TL11
BrandSiemens
SGD80.20
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 212-5803
Mfr. Part No.3LD3140-0TL11
BrandSiemens
SGD73.44
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 212-5788
Mfr. Part No.3LD2230-0TK11
BrandSiemens
SGD66.86
Each
units
- - - - - - - - - - - - - -
RS Stock No. 727-5813
Mfr. Part No.1SCA022750R7800
BrandABB
SGD879.12
Each
units
- - 4P - - - - B1-B3 - Yes 250 A 3 Screw DIN Rail
RS Stock No. 608-7564
Mfr. Part No.GK1ET
SGD249.25
Each
units
- - 4P - - - - 14 x 51mm - Yes 50A - Wire Lead -
New
RS Stock No. 213-1380
Mfr. Part No.3LD2318-0TK11
BrandSiemens
SGD668.60
Each
units
3P Non-fused 3 SENTRON 3LD Single Throw Enclosed Size 5 160A - 160A - - -
New
RS Stock No. 212-5719
Mfr. Part No.3KD2832-0NE10-0
BrandSiemens
SGD211.91
Each
units
- - - - - - - - - - - - - -
RS Stock No. 726-4778
Mfr. Part No.125KXTNC2F
BrandEaton
SGD1,335.23
Each
units
- - 3P + N - - - - SB3, SB4, SD6, SO - - 125 A 3 - -
New
RS Stock No. 212-5722
Mfr. Part No.3KD3230-2NE10-0
BrandSiemens
SGD275.84
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 213-1402
Mfr. Part No.5TE1320
BrandSiemens
SGD244.79
Each
units
3P Fused 3 SENTRON 5TE Single Throw Enclosed - 125A - 125A - - -
RS Stock No. 708-1744
Mfr. Part No.GS2GB3
SGD188.05
Each
units
- - 3P - - - - A2, A3 - Yes - 3 Wire Lead -
New
RS Stock No. 213-1355
Mfr. Part No.3LD2064-1TC51
BrandSiemens
SGD122.58
Each
units
- Fused 4 SENTRON 3LD - - - - - 16A - - -
New
RS Stock No. 212-5733
Mfr. Part No.3KD4032-0PE10-0
BrandSiemens
SGD710.62
Each
units
- - - - - - - - - - - - - -
RS Stock No. 781-3831
Mfr. Part No.3831 6010
BrandSocomec
SGD388.15
Each
units
- - - - - - - - - - - - - -