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 Enclosed/Not Enclosed Mechanical Fuse Size Fuse Current Rating Auxiliary Contacts Available Maximum Current Electrical Phase Terminal Type Mounting Type
RS Stock No. 710-0586
Mfr. Part No.1SCA114614R1001
BrandABB
TWD8,868.00
Each
units
- - 4P - - - - A2, A3, A4 - Yes 100 A 3 - DIN Rail
RS Stock No. 710-0589
Mfr. Part No.1SCA115238R1001
BrandABB
TWD6,757.00
Each
units
- - 4P - - - - A2, A3 - Yes 63 A 3 Screw DIN Rail
RS Stock No. 762-2613
Mfr. Part No.1SCA115209R1001
BrandABB
TWD8,142.00
Each
units
- - 4P - - - - 000 80A Yes 63 A 3 - DIN Rail
RS Stock No. 762-2648
Mfr. Part No.1SCA022825R2830
BrandABB
TWD39,019.00
Each
units
- - 3P - - - - 3 800A Yes 630 A 3 - DIN Rail
RS Stock No. 710-0582
Mfr. Part No.1SCA114613R1001
BrandABB
TWD7,181.00
Each
units
- - 3P - - - - A2, A3, A4 - Yes 100 A 3 - DIN Rail
RS Stock No. 710-0573
Mfr. Part No.1SCA115259R1001
BrandABB
TWD3,856.00
Each
units
- - 3P - - - - A2, A3 - Yes 32 A 3 Screw DIN Rail
RS Stock No. 707-6177
Mfr. Part No.2CSM204703R1801
BrandABB
TWD828.00
Each
units
- - DP - - - - 10 x 38 mm - - 32 A 1 - -
RS Stock No. 707-6161
Mfr. Part No.2CSM204733R1801
BrandABB
TWD1,307.00
Each
units
- - 3P + N - - - - 10 x 38 mm - - 32 A 3 - -
RS Stock No. 762-2468
Mfr. Part No.OS200TPN-B
BrandABB
TWD41,313.00
Each
units
- - - - - - - - - - - - - -
RS Stock No. 710-0602
Mfr. Part No.1SCA115896R1001
BrandABB
TWD13,857.00
Each
units
- - 4P - - - - A2, A3, A4 - Yes 160 A 3 - DIN Rail
RS Stock No. 727-5790
Mfr. Part No.1SCA022750R0620
BrandABB
TWD16,097.00
Each
units
- - 3P + N - - - - B1-B2 - Yes 200 A 3 Screw DIN Rail
RS Stock No. 710-0570
Mfr. Part No.1SCA115235R1001
BrandABB
TWD6,154.00
Each
units
- - 3P - - - - A2, A3 - Yes 63 A 3 Screw DIN Rail
RS Stock No. 710-0592
Mfr. Part No.1SCA115413R1001
BrandABB
TWD11,182.00
Each
units
- - 3P - - - - A2, A3, A4 - Yes 160 A 3 - DIN Rail
RS Stock No. 762-2641
Mfr. Part No.1SCA022719R0250
BrandABB
TWD22,649.00
Each
units
- - 3P - - - - 0 → 2 500A Yes 400 A 3 - DIN Rail
RS Stock No. 710-0576
Mfr. Part No.1SCA114610R1001
BrandABB
TWD4,597.00
Each
units
- - 4P - - - - A2, A3 - Yes 32 A 3 Screw DIN Rail
RS Stock No. 707-6158
Mfr. Part No.2CSM200883R1801
BrandABB
TWD598.00
Each
units
- - DP - - - - 10 x 38 mm - - 32 A 1 - -
RS Stock No. 710-0598
Mfr. Part No.1SCA115901R1001
BrandABB
TWD11,399.00
Each
units
- - 4P - - - - A2, A3, A4 - Yes 125 A 3 - DIN Rail
RS Stock No. 686-7391
Mfr. Part No.1SCA108853R1001
BrandABB
TWD4,386.00
Each
units
- - 4P - - - - A1 - Yes 32 A 3 Screw DIN Rail
RS Stock No. 707-6146
Mfr. Part No.2CSM200923R1801
BrandABB
TWD192.00
Each
units
- - SP - - - - 10 x 38 mm - - 32 A 1 - -
RS Stock No. 727-2362
Mfr. Part No.2CMA142417R1000
BrandABB
TWD1,910.00
Each
units
NO - 3P - - - - - 50A Yes 16 A - Cable -