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 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 Maximum Operating Temperature
RS Stock No. 136-5277
BrandRS PRO
MYR820.33
Each
units
6NO 6 - - 6PST - - - 63A 3 - Wall Mount - -
RS Stock No. 608-7946
Mfr. Part No.GS1DD4
MYR1,345.85
Each
units
- - - - - - - - - - - - - -
RS Stock No. 381-5726
Mfr. Part No.5560S
MYR51.73
Each
units
- DP - Sentry - - - - 63A - - - -5°C +40°C
RS Stock No. 707-6177
Mfr. Part No.2CSM204703R1801
BrandABB
MYR57.27
Each
units
- DP - - - 10 x 38 mm - - 32 A 1 - - - -
RS Stock No. 513-5729
Mfr. Part No.3841 3021
BrandSocomec
MYR1,199.41
Each
units
- 3P - - - B1-B2 200A - 200 A 3 - - - -
RS Stock No. 247-4065
Mfr. Part No.DTL400KIT
MYR1,678.91
Each
units
- - - - - - - - - - - - - -
RS Stock No. 676-3227
Mfr. Part No.GS2L3
MYR2,039.38
Each
units
- - - - - - - - - - - - - -
RS Stock No. 608-7558
Mfr. Part No.GK1ES
MYR727.06
Each
units
- 3P - - - 14 x 51mm - Yes 50A - Wire Lead - -50°C +70°C
RS Stock No. 707-6161
Mfr. Part No.2CSM204733R1801
BrandABB
MYR194.57
Each
units
- 3P + N - - - 10 x 38 mm - - 32 A 3 - - - -
RS Stock No. 686-7389
Mfr. Part No.1SCA108796R1001
BrandABB
MYR526.75
Each
units
- 4P - - - A1 - Yes 20 A - Screw DIN Rail - -
RS Stock No. 512-9459
Mfr. Part No.OS100GB12P
BrandABB
MYR1,171.64
Each
units
- 3P - - - BS - Yes 100 A 3 Conduit DIN Rail - -
RS Stock No. 813-9572
Mfr. Part No.GS2JU3N
MYR2,787.84
Each
units
- - - - - - - - - - - - - -
RS Stock No. 707-6146
Mfr. Part No.2CSM200923R1801
BrandABB
MYR28.62
Each
units
- SP - - - 10 x 38 mm - - 32 A 1 - - - -
RS Stock No. 513-5684
Mfr. Part No.3841 3003
BrandSocomec
MYR250.98
Each
units
- 3P - - - - 10A - 32 A 3 - - - -
RS Stock No. 628-8098
Mfr. Part No.266006 & PN2-200
BrandEaton
MYR1,929.96
1 Box of 1
Box(es)
- - - - - - - - - - - - - -
RS Stock No. 238-4811
Mfr. Part No.0 058 20
BrandLegrand
MYR102.58
Each
units
- SP + N - - - 8.5 x 23 mm - - 10 A 1 Cage DIN rail -5°C +40°C
RS Stock No. 686-7385
Mfr. Part No.1SCA108790R1001 - OS20FB12A1
BrandABB
MYR508.74
Each
units
- 3P - - - A1 - Yes 20 A - Screw DIN Rail - -
RS Stock No. 608-7930
Mfr. Part No.GS1DD3
MYR1,084.92
Each
units
- - - - - - - - - - - - - -
RS Stock No. 238-4833
Mfr. Part No.0 058 22
BrandLegrand
MYR102.58
Each
units
- SP + N - - - 8.5 x 31.5 mm - - 20 A 1 Cage DIN rail -5°C +40°C
RS Stock No. 686-7391
Mfr. Part No.1SCA108853R1001
BrandABB
MYR659.63
Each
units
- 4P - - - A1 - Yes 32 A 3 Screw DIN Rail - -