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.

...
Read more Read less

Filters

Viewing 1 - 20 of 49 products
Results per page
Description Price Normal State Configuration Fused/Non-Fused 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
RS Stock No. 512-9459
Mfr. Part No.OS100GB12P
BrandABB
HK$2,009.44
Each
units
- - 3P - - - BS - Yes 100 A 3 Conduit DIN Rail -
RS Stock No. 710-0573
Mfr. Part No.1SCA115259R1001
BrandABB
HK$994.59
Each
units
- - 3P - - - A2, A3 - Yes 32 A 3 Screw DIN Rail -
RS Stock No. 762-2446
Mfr. Part No.OS20TPN-B
BrandABB
HK$1,939.77
Each
units
- - 3P + N - - - A1 - - 20 A 3 - Wall Mount -
RS Stock No. 707-6152
Mfr. Part No.2CSM204753R1801
BrandABB
HK$249.32
Each
units
- - 3P - - - 10 x 38 mm - - 32 A 3 - - -
RS Stock No. 762-2641
Mfr. Part No.1SCA022719R0250
BrandABB
HK$6,833.11
Each
units
- - 3P - - - 0 → 2 500A Yes 400 A 3 - DIN Rail -
RS Stock No. 727-5787
Mfr. Part No.1SCA022709R9330
BrandABB
HK$3,755.18
Each
units
- - 3P - - - B1-B2 - Yes 200 A 3 Screw DIN Rail -
RS Stock No. 686-7398
Mfr. Part No.1SCA108840R1001
BrandABB
HK$974.34
Each
units
- - 3P - - - A1 - Yes 32 A 3 Screw DIN Rail -
RS Stock No. 762-2648
Mfr. Part No.1SCA022825R2830
BrandABB
HK$11,771.76
Each
units
- - 3P - - - 3 800A Yes 630 A 3 - DIN Rail -
RS Stock No. 727-5816
Mfr. Part No.1SCA022778R9940
BrandABB
HK$5,599.19
Each
units
- - 4P - - - B1-B3 - Yes 250 A 3 Screw DIN Rail -
RS Stock No. 762-2455
Mfr. Part No.OS32TPN-B
BrandABB
HK$2,565.76
Each
units
- - 3P + N - - - A2 - - 32 A 3 - Wall Mount -
RS Stock No. 762-2468
Mfr. Part No.OS200TPN-B
BrandABB
HK$10,707.75
Each
units
- - 3P + N - - - B1, B2 - - 200 A 3 - Wall Mount -
RS Stock No. 710-0586
Mfr. Part No.1SCA114614R1001
BrandABB
HK$2,312.14
Each
units
- - 4P - - - A2, A3, A4 - Yes 100 A 3 - DIN Rail -40°C
RS Stock No. 762-2610
Mfr. Part No.1SCA115877R1001
BrandABB
HK$3,072.78
Each
units
- - 4P - - - 00, 000 160A Yes 125 A 3 - DIN Rail -
RS Stock No. 727-2372
Mfr. Part No.2CMA142422R1000
BrandABB
HK$1,168.25
Each
units
NO - 6P - - - - 50A Yes 25 A - Cable - -
RS Stock No. 710-0592
Mfr. Part No.1SCA115413R1001
BrandABB
HK$2,884.48
Each
units
- - 3P - - - A2, A3, A4 - Yes 160 A 3 - DIN Rail -
RS Stock No. 512-9471
Mfr. Part No.OS125B12
BrandABB
HK$2,809.21
Each
units
- - 3P - - - A2, A3, A4 - Yes 125 A - Screw DIN Rail -
RS Stock No. 707-6164
Mfr. Part No.2CSM204723R1801
BrandABB
HK$322.49
Each
units
- - 4P - - - 10 x 38 mm - - 32 A 3 - - -
RS Stock No. 762-2452
Mfr. Part No.OS100TPN-B
BrandABB
HK$7,349.28
Each
units
- - 3P + N - - - A2, A3 - - 100 A 3 - Wall Mount -
RS Stock No. 727-2369
Mfr. Part No.2CMA142423R1000
BrandABB
HK$486.89
Each
units
NO - 3P - - - - 50A Yes 16 A - Cable - -
RS Stock No. 710-0589
Mfr. Part No.1SCA115238R1001
BrandABB
HK$1,743.00
Each
units
- - 4P - - - A2, A3 - Yes 63 A 3 Screw DIN Rail -