Isolator & Switch Disconnectors

Fused switches 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. You can find out more in our complete guide to isolators and switch disconnectors.

Fused switches 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 switches used for?

Fused switches 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 over a non-fused switch 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 switches

Fused switches 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庫存編號 727-2375
製造零件編號2CMA142420R1000 BWS 325 TPN
BrandABB
TWD2,138.00
單位
- - - - - - - - - - - - - -
RS庫存編號 707-6161
製造零件編號2CSM204733R1801 E 93N/32
BrandABB
TWD1,372.00
單位
- - - - - - - - - - - - - -
RS庫存編號 512-9459
製造零件編號OS100GB12P 1SCA114586R1001
BrandABB
TWD8,261.00
單位
- - - - - - - - - - - - - -
RS庫存編號 762-2455
製造零件編號OS32TPN-A OS32TPN-A
BrandABB
TWD10,012.00
單位
- - - - - - - - - - - - - -
RS庫存編號 762-2607
製造零件編號OS32GD03P 1SCA115189R1001
BrandABB
TWD5,389.00
單位
- - - - - - - - - - - - - -
RS庫存編號 710-0592
製造零件編號OS160GB03P 1SCA115413R1001
BrandABB
TWD11,359.00
單位
- - 3P - - - - A2, A3, A4 - Yes 160 A 3 - DIN Rail
RS庫存編號 727-5790
製造零件編號OS200B03N3P 1SCA022750R0620
BrandABB
TWD16,351.00
單位
- - - - - - - - - - - - - -
RS庫存編號 762-2610
製造零件編號OS125GD04N2P 1SCA115877R1001
BrandABB
TWD10,694.00
單位
- - - - - - - - - - - - - -
RS庫存編號 512-9471
製造零件編號OS125GB12P 1SCA114603R1001
BrandABB
TWD11,010.00
單位
- - 3P - - - - A2, A3, A4 - Yes 125 A - Screw DIN Rail
RS庫存編號 686-7389
製造零件編號OS20FB22A1N1 1SCA108796R1001
BrandABB
TWD3,558.00
單位
- - 4P - - - - A1 - Yes 20 A - Screw DIN Rail
RS庫存編號 710-0573
製造零件編號OS32GB03P 1SCA115259R1001
BrandABB
TWD3,917.00
單位
- - 3P - - - - A2, A3 - Yes 32 A 3 Screw DIN Rail
RS庫存編號 707-6158
製造零件編號2CSM200883R1801 E 92/32
BrandABB
TWD628.00
單位
- - DP - - - - 10 x 38 mm - - 32 A 1 - -
RS庫存編號 762-2452
製造零件編號OS100TPN-B
BrandABB
TWD28,679.00
單位
- - - - - - - - - - - - - -
RS庫存編號 707-6164
製造零件編號2CSM204723R1801 E 94/32
BrandABB
TWD1,344.00
單位
- - 4P - - - - 10 x 38 mm - - 32 A 3 - -
RS庫存編號 727-5816
製造零件編號OS250B22N2P 1SCA022778R9940
BrandABB
TWD22,009.00
單位
- - 4P - - - - B1-B3 - Yes 250 A 3 Screw DIN Rail
RS庫存編號 710-0595
製造零件編號OS125GB03P 1SCA115634R1001
BrandABB
TWD9,727.00
單位
- - 3P - - - - A2, A3, A4 - Yes 125 A 3 - DIN Rail
RS庫存編號 762-2629
製造零件編號OS160GD03P 1SCA115399R1001
BrandABB
TWD10,255.00
單位
- - - - - - - - - - - - - -
RS庫存編號 686-7398
製造零件編號OS32FB12A1 1SCA108840R1001
BrandABB
TWD3,837.00
單位
- - 3P - - - - A1 - Yes 32 A 3 Screw DIN Rail
RS庫存編號 710-0602
製造零件編號OS160GB04N1P 1SCA115896R1001
BrandABB
TWD14,076.00
單位
- - 4P - - - - A2, A3, A4 - Yes 160 A 3 - DIN Rail
RS庫存編號 727-2362
製造零件編號2CMA142417R1000 BWS 316 TPN
BrandABB
TWD1,940.00
單位
NO - 3P - - - - - 50A Yes 16 A - Cable -