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 Mechanical Fuse Size Fuse Current Rating Auxiliary Contacts Available Maximum Current Electrical Phase Terminal Type Mounting Type Minimum Operating Temperature
RS Stock No. 136-5277
BrandRS PRO
kr 1 641,66
Each
Units
6NO - 6 - - 6PST - - - 63A 3 - Wall Mount -
RS Stock No. 708-1744
Mfr. Part No.GS2GB3
kr 1 321,92
Each
Units
- - 3P - - - A2, A3 - Yes - 3 Wire Lead - -20°C
RS Stock No. 238-4833
Mfr. Part No.0 058 22
BrandLegrand
kr 149,19
Each
Units
- - SP + N - - - 8.5 x 31.5 mm - - 20 A 1 Cage DIN rail -5°C
RS Stock No. 710-0573
Mfr. Part No.1SCA115259R1001
BrandABB
kr 791,24
Each
Units
- - 3P - - - A2, A3 - Yes 32 A 3 Screw DIN Rail -
RS Stock No. 707-6152
Mfr. Part No.2CSM204753R1801
BrandABB
kr 213,56
Each
Units
- - 3P - - - 10 x 38 mm - - 32 A 3 - - -
RS Stock No. 710-0589
Mfr. Part No.1SCA115238R1001
BrandABB
kr 1 386,69
Each
Units
- - 4P - - - A2, A3 - Yes 63 A 3 Screw DIN Rail -
RS Stock No. 608-7564
Mfr. Part No.GK1ET
kr 1 892,16
Each
Units
- - 4P - - - 14 x 51mm - Yes 50A - Wire Lead - -50°C
RS Stock No. 762-2648
Mfr. Part No.1SCA022825R2830
BrandABB
kr 16 492,37
Each
Units
- - 3P - - - 3 800A Yes 630 A 3 - DIN Rail -
RS Stock No. 762-2461
Mfr. Part No.OS125TPN-B
BrandABB
kr 6 096,79
Each
Units
- - 3P + N - - - A2, A3 - - 125 A 3 - Wall Mount -
RS Stock No. 726-4737
Mfr. Part No.103GNC
BrandEaton
kr 8 721,56
Each
Units
- - 3P + N - - - - - - 100A 3 - - -
New
RS Stock No. 204-1583
Mfr. Part No.T0-1-8200/SE1/SVB
BrandEaton
kr 1 631,49
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 781-3840
Mfr. Part No.3831 6012
BrandSocomec
kr 3 112,43
Each
Units
- - 4P - - - 00 - Yes 125 A - Shroud DIN Rail -
RS Stock No. 686-7391
Mfr. Part No.1SCA108853R1001
BrandABB
kr 850,64
Each
Units
- - 4P - - - A1 - Yes 32 A 3 Screw DIN Rail -
RS Stock No. 762-2468
Mfr. Part No.OS200TPN-B
BrandABB
kr 8 248,88
Each
Units
- - 3P + N - - - B1, B2 - - 200 A 3 - Wall Mount -
RS Stock No. 710-0595
Mfr. Part No.1SCA115634R1001
BrandABB
kr 1 988,06
Each
Units
- - 3P - - - A2, A3, A4 - Yes 125 A 3 - DIN Rail -
RS Stock No. 608-7570
Mfr. Part No.GK1EW
kr 1 581,12
Each
Units
- - 3P - - - 14 x 51mm - Yes 50A 1 Wire Lead - -50°C
New
RS Stock No. 204-1565
Mfr. Part No.P1-25/SE1
BrandEaton
kr 1 520,92
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 815-3691
Mfr. Part No.GS1DDU3
kr 1 075,68
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 727-5816
Mfr. Part No.1SCA022778R9940
BrandABB
kr 4 282,10
Each
Units
- - 4P - - - B1-B3 - Yes 250 A 3 Screw DIN Rail -
RS Stock No. 238-4811
Mfr. Part No.0 058 20
BrandLegrand
kr 142,07
Each
Units
- - SP + N - - - 8.5 x 23 mm - - 10 A 1 Cage DIN rail -5°C