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 41 - 60 of 460 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
RS Stock No. 762-2648
Mfr. Part No.OS630D03P 1SCA022825R2830
BrandABB
£1,029.00
Each
Units
- - 3P - - - - 3 800A Yes 630 A 3 - DIN Rail
RS Stock No. 628-8098
Mfr. Part No.266006 & PN2-200
BrandEaton
£294.92
1 Box of 1
Box(es)
- - - - - - - - - - - - - -
RS Stock No. 781-3856
Mfr. Part No.3831 3024
BrandSocomec
£364.22
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 819-961
Mfr. Part No.30KXSC2F
BrandEaton
£187.27
Each
Units
- - SP - - - - - - - 32 A 1 - -
RS Stock No. 726-4784
Mfr. Part No.153GNC
BrandEaton
£1,286.07
Each
Units
- - 3P + N - - - - SF3, SF6 - - 160A 3 - -
RS Stock No. 512-9471
Mfr. Part No.OS125GB12P 1SCA114603R1001
BrandABB
£244.40
Each
Units
- - 3P - - - - A2, A3, A4 - Yes 125 A - Screw DIN Rail
RS Stock No. 781-3888
Mfr. Part No.3841 6016
BrandSocomec
£277.14
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 708-1744
Mfr. Part No.GS2GB3
£104.00
Each
Units
- - 3P - - - - A2, A3 - Yes - 3 Wire Lead -
RS Stock No. 708-1747
Mfr. Part No.GS2DB3
£59.00
Each
Units
- - 3P - - - - A1 - Yes - 3 Wire Lead -
RS Stock No. 781-3844
Mfr. Part No.3831 3015
BrandSocomec
£219.64
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 762-2641
Mfr. Part No.OS400D03P 1SCA022719R0250
BrandABB
£284.87
Each
Units
- - 3P - - - - 0 → 2 500A Yes 400 A 3 - DIN Rail
RS Stock No. 781-3907
Mfr. Part No.3841 6039
BrandSocomec
£708.88
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 707-6155
Mfr. Part No.2CSM200893R1801 E 91N/32
BrandABB
£9.70
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 726-4911
Mfr. Part No.63GNC
BrandEaton
£595.63
Each
Units
- - 3P + N - - - - SB3, SB4 - - 63A 3 - -
RS Stock No. 762-2455
Mfr. Part No.OS32TPN-A OS32TPN-A
BrandABB
£222.25
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 398-5257
Mfr. Part No.AAE003-251/029
BrandEICHOFF
£9.67
Each
Units
- - - - - - - - - - - - - Panel Mount
RS Stock No. 708-1753
Mfr. Part No.GS2GB4
£137.00
Each
Units
- - 4P - - - - A2, A3 - Yes - 3 Wire Lead -
RS Stock No. 819-949
Mfr. Part No.15KXSC2F
BrandEaton
£143.17
Each
Units
- - SP - - - - - - - 20 A 1 - -
RS Stock No. 781-3822
Mfr. Part No.3831 3010
BrandSocomec
£130.54
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 710-0576
Mfr. Part No.OS32GB04N1P 1SCA114610R1001
BrandABB
£103.66
Each
Units
- - 4P - - - - A2, A3 - Yes 32 A 3 Screw DIN Rail