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. 707-6177
Mfr. Part No.2CSM204703R1801
BrandABB
PHP724.61
Each
units
- DP - - - 10 x 38 mm - - 32 A 1 - - - -
RS Stock No. 707-6146
Mfr. Part No.2CSM200923R1801
BrandABB
PHP329.51
Each
units
- SP - - - 10 x 38 mm - - 32 A 1 - - - -
RS Stock No. 707-6158
Mfr. Part No.2CSM200883R1801
BrandABB
PHP1,024.79
Each
units
- DP - - - 10 x 38 mm - - 32 A 1 - - - -
RS Stock No. 762-2641
Mfr. Part No.1SCA022719R0250
BrandABB
PHP45,830.21
Each
units
- 3P - - - 0 → 2 500A Yes 400 A 3 - DIN Rail - -
RS Stock No. 707-6168
Mfr. Part No.2CSM204713R1801
BrandABB
PHP567.29
Each
units
- SP - - - 10 x 38 mm - - 32 A 1 - - - -
RS Stock No. 762-2455
Mfr. Part No.OS32TPN-B
BrandABB
PHP17,053.19
Each
units
- 3P + N - - - A2 - - 32 A 3 - Wall Mount - -
RS Stock No. 686-7385
Mfr. Part No.1SCA108790R1001 - OS20FB12A1
BrandABB
PHP5,852.24
Each
units
- 3P - - - A1 - Yes 20 A - Screw DIN Rail - -
RS Stock No. 727-5838
Mfr. Part No.1SCA022719R0840
BrandABB
PHP48,104.56
Each
units
- 3P - - - B1-B4 - Yes 400 A 3 Screw DIN Rail - -
RS Stock No. 710-0570
Mfr. Part No.1SCA115235R1001
BrandABB
PHP10,646.66
Each
units
- 3P - - - A2, A3 - Yes 63 A 3 Screw DIN Rail - -
RS Stock No. 762-2452
Mfr. Part No.OS100TPN-B
BrandABB
PHP48,485.63
Each
units
- 3P + N - - - A2, A3 - - 100 A 3 - Wall Mount - -
RS Stock No. 707-6155
Mfr. Part No.2CSM200893R1801
BrandABB
PHP744.42
Each
units
- SP + N - - - 10 x 38 mm - - 32 A 1 - - - -
RS Stock No. 686-7389
Mfr. Part No.1SCA108796R1001
BrandABB
PHP6,059.29
Each
units
- 4P - - - A1 - Yes 20 A - Screw DIN Rail - -
RS Stock No. 762-2468
Mfr. Part No.OS200TPN-B
BrandABB
PHP66,399.77
Each
units
- 3P + N - - - B1, B2 - - 200 A 3 - Wall Mount - -
RS Stock No. 707-6152
Mfr. Part No.2CSM204753R1801
BrandABB
PHP1,664.47
Each
units
- 3P - - - 10 x 38 mm - - 32 A 3 - - - -
RS Stock No. 762-2648
Mfr. Part No.1SCA022825R2830
BrandABB
PHP78,953.70
Each
units
- 3P - - - 3 800A Yes 630 A 3 - DIN Rail - -
RS Stock No. 727-2362
Mfr. Part No.2CMA142417R1000
BrandABB
PHP3,303.97
Each
units
NO 3P - - - - 50A Yes 16 A - Cable - - -
RS Stock No. 727-2369
Mfr. Part No.2CMA142423R1000
BrandABB
PHP3,265.30
Each
units
NO 3P - - - - 50A Yes 16 A - Cable - - -
RS Stock No. 727-5813
Mfr. Part No.1SCA022750R7800
BrandABB
PHP37,553.76
Each
units
- 4P - - - B1-B3 - Yes 250 A 3 Screw DIN Rail - -
RS Stock No. 710-0582
Mfr. Part No.1SCA114613R1001
BrandABB
PHP12,424.73
Each
units
- 3P - - - A2, A3, A4 - Yes 100 A 3 - DIN Rail -40°C +40°C
RS Stock No. 710-0589
Mfr. Part No.1SCA115238R1001
BrandABB
PHP11,689.98
Each
units
- 4P - - - A2, A3 - Yes 63 A 3 Screw DIN Rail - -