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 21 - 40 of 173 products
Results per page
Description Price Normal State Configuration Fused/Non-Fused Number of Poles Range Series Throw Configuration Mechanical Fuse Size Fuse Current Rating Auxiliary Contacts Available Maximum Current Electrical Phase Terminal Type Mounting Type Minimum Operating Temperature
RS Stock No. 762-2446
Mfr. Part No.OS20TPN-B
BrandABB
€198.55
Each
units
- - 3P + N - - - A1 - - 20 A 3 - Wall Mount -
RS Stock No. 608-7586
Mfr. Part No.GK1EX
€108.17
Each
units
- - 3P + N - - - 14 x 51 mm - Yes 50 A 1 Wire Lead DIN Rail -50°C
RS Stock No. 719-1908
Mfr. Part No.RCD10WPV
€55.80
Each
units
- - DP - - - BS 1363, BS 7288 - - 13 A - Screw Surface Mount -5°C
RS Stock No. 512-9471
Mfr. Part No.OS125B12
BrandABB
€286.19
Each
units
- - 3P - - - A2, A3, A4 - Yes 125 A - Screw DIN Rail -
RS Stock No. 710-0595
Mfr. Part No.1SCA115634R1001
BrandABB
€252.84
Each
units
- - 3P - - - A2, A3, A4 - Yes 125 A 3 - DIN Rail -
RS Stock No. 419-031
Mfr. Part No.KNB50SF4
€207.38
Each
units
- - 3P + N - Harmony K - NF 14 x 51 - - 50 A 3 Cable Clamp - -
RS Stock No. 513-5741
Mfr. Part No.3841 3039
BrandSocomec
€678.89
Each
units
- - 3P - - - - 10A - 400 A 3 - - -
RS Stock No. 781-3816
Mfr. Part No.3831 6005
BrandSocomec
€135.80
Each
units
- - 4P - - - 14 x 51 mm - Yes 50 A - Shroud DIN Rail -
RS Stock No. 726-4816
Mfr. Part No.203GNL
BrandEaton
€998.12
Each
units
- - 3P + N - - - SF3, SF6 - - 200 A 3 Tunnel - -
RS Stock No. 762-2452
Mfr. Part No.OS100TPN-B
BrandABB
€745.49
Each
units
- - 3P + N - - - A2, A3 - - 100 A 3 - Wall Mount -
RS Stock No. 762-2648
Mfr. Part No.1SCA022825R2830
BrandABB
€1,204.96
Each
units
- - 3P - - - 3 800A Yes 630 A 3 - DIN Rail -
RS Stock No. 513-5684
Mfr. Part No.3841 3003
BrandSocomec
€57.99
Each
units
- - 3P - - - - 10A - 32 A 3 - - -
RS Stock No. 398-5257
Mfr. Part No.AAE003-251/029
BrandEICHOFF
€9.49
Each
units
- - - - - - - - - - - - Panel Mount -
RS Stock No. 707-6161
Mfr. Part No.2CSM204733R1801
BrandABB
€34.16
Each
units
- - 3P + N - - - 10 x 38 mm - - 32 A 3 - - -
RS Stock No. 707-6158
Mfr. Part No.2CSM200883R1801
BrandABB
€15.64
Each
units
- - DP - - - 10 x 38 mm - - 32 A 1 - - -
RS Stock No. 708-1769
Mfr. Part No.GS2LB3
€195.87
Each
units
- - 3P - - - B1, B2 - Yes 125 A dc, 160 A ac 3 Wire Lead DIN Rail -20°C
RS Stock No. 608-7558
Mfr. Part No.GK1ES
€73.02
Each
units
- - 3P - - - 14 x 51 mm - Yes 50 A - Wire Lead DIN Rail -50°C
RS Stock No. 443-845
Mfr. Part No.DTL250KIT
€195.36
Each
units
- - 3P - - - NH - - 250 A 3 - Surface Mount -
RS Stock No. 676-3215
Mfr. Part No.GS2K3
€285.69
Each
units
- - 3P - - - 22 x 58 mm - Yes 100 A dc, 125 A ac 3 - DIN rail -20°C
RS Stock No. 727-2366
Mfr. Part No.2CMA142426R1000
BrandABB
€49.84
Each
units
NO - 3P - - - - 50A Yes 25 A - Cable - -
Related Products
The fuserbloc series are manually operated multi polar ...
Description:
The fuserbloc series are manually operated multi polar fuse combination switches These fused switch disconnectors break or switch off on load and provide safety isolation and protection against over current for any low voltage electrical circuit. The fuserbloc series is ...
FUSERBLOC are manually operated multipolar fuse combination switches ...
Description:
FUSERBLOC are manually operated multipolar fuse combination switches They make and break on load and provide safety isolation and protection against overcurrent for any low voltage electrical circuit. Improved safety:Complete isolation of the fuse with double breaking per pole (top ...
The fuserbloc series are manually operated multi polar ...
Description:
The fuserbloc series are manually operated multi polar fuse combination switches These fused switch disconnectors break or switch off on load and provide safety isolation and protection against over current for any low voltage electrical circuit. The fuserbloc series is ...
Te Sys GS fusible disconnect switches ensure load ...
Description:
Te Sys GS fusible disconnect switches ensure load closing or cut-off, safety isolation and protection against surges for all low voltage electrical circuitsLocated at the top of electrical panels, they are specially designed to protect and interrupt main circuits (including ...