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. 819-955
Mfr. Part No.15KXTNC2F
BrandEaton
TWD8,814.00
Each
units
- 3P - - - - - - 20 A 3 - - - -
RS Stock No. 513-5713
Mfr. Part No.3841 3016
BrandSocomec
TWD9,588.00
Each
units
- 3P - - - - 10A - 160 A 3 - - - -
RS Stock No. 819-983
Mfr. Part No.60KXSC2F
BrandEaton
TWD12,225.00
Each
units
- SP - - - - - - 63 A 1 - - - -
RS Stock No. 676-3227
Mfr. Part No.GS2L3
TWD13,176.00
Each
units
- 3P - - - - - Yes 125 A dc, 160 A ac 3 - DIN rail -20°C +70°C
RS Stock No. 819-961
Mfr. Part No.30KXSC2F
BrandEaton
TWD8,176.00
Each
units
- SP - - - - - - 32 A 1 - - - -
RS Stock No. 819-949
Mfr. Part No.15KXSC2F
BrandEaton
TWD6,251.00
Each
units
- SP - - - - - - 20 A 1 - - - -
RS Stock No. 513-5690
Mfr. Part No.3841 3006
BrandSocomec
TWD3,411.00
Each
units
- 3P - - - - 10A - 63 A 3 - - - -
RS Stock No. 710-0589
Mfr. Part No.1SCA115238R1001
BrandABB
TWD6,851.00
Each
units
- 4P - - - A2, A3 - Yes 63 A 3 Screw DIN Rail - -
RS Stock No. 710-0592
Mfr. Part No.1SCA115413R1001
BrandABB
TWD11,338.00
Each
units
- 3P - - - A2, A3, A4 - Yes 160 A 3 - DIN Rail - -
RS Stock No. 513-5707
Mfr. Part No.3841 3010
BrandSocomec
TWD5,309.00
Each
units
- 3P - - - - 10A - 100 A 3 - - - -
RS Stock No. 182-8454
Mfr. Part No.36153024
BrandSocomec
TWD42,179.00
Each
units
- - - - - - - - - - - - - -
RS Stock No. 710-0595
Mfr. Part No.1SCA115634R1001
BrandABB
TWD9,709.00
Each
units
- 3P - - - A2, A3, A4 - Yes 125 A 3 - DIN Rail - -
RS Stock No. 608-7586
Mfr. Part No.GK1EX
TWD7,285.00
Each
units
- 3P + N - - - 14 x 51 mm - Yes 50 A 1 Wire Lead DIN Rail -50°C +70°C
RS Stock No. 513-5729
Mfr. Part No.3841 3021
BrandSocomec
TWD10,663.00
Each
units
- 3P - - - B1-B2 200A - 200 A 3 - - - -
RS Stock No. 762-2616
Mfr. Part No.1SCA115639R1001
BrandABB
TWD9,709.00
Each
units
- 3P - - - 00, 000 160A Yes 125 A 3 - DIN Rail - -
RS Stock No. 726-4778
Mfr. Part No.125KXTNC2F
BrandEaton
TWD32,568.00
Each
units
- 3P + N - - - SB3, SB4, SD6, SO - - 125 A 3 - - - -
RS Stock No. 676-3221
Mfr. Part No.GS2N3
TWD21,269.00
Each
units
- 3P - - - 1 - Yes 200 A dc, 250 A ac 3 - DIN rail -20°C +70°C
RS Stock No. 608-7592
Mfr. Part No.GK1EY
TWD5,576.00
Each
units
- 4P - - - 14 x 51 mm - Yes 50 A 1 Wire Lead DIN Rail -50°C +70°C
RS Stock No. 762-2452
Mfr. Part No.OS100TPN-B
BrandABB
TWD28,627.00
Each
units
- 3P + N - - - A2, A3 - - 100 A 3 - Wall Mount - -
RS Stock No. 710-0598
Mfr. Part No.1SCA115901R1001
BrandABB
TWD11,277.00
Each
units
- 4P - - - A2, A3, A4 - Yes 125 A 3 - DIN Rail - -