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
全新
RS庫存編號 212-5786
製造零件編號3LD2213-0TK51
BrandSiemens
HK$642.66
單位
- - - - - - - - - - - - - -
RS庫存編號 781-3888
製造零件編號3841 6016
BrandSocomec
HK$2,844.73
單位
- - - - - - - - - - - - - -
全新
RS庫存編號 212-5733
製造零件編號3KD4032-0PE10-0
BrandSiemens
HK$4,038.69
單位
- - - - - - - - - - - - - -
RS庫存編號 727-2369
製造零件編號2CMA142423R1000
BrandABB
HK$477.55
單位
NO - 3P - - - - - 50A Yes 16 A - Cable -
RS庫存編號 781-3838
製造零件編號3831 6011
BrandSocomec
HK$2,396.74
單位
- - - - - - - - - - - - - -
RS庫存編號 710-0576
製造零件編號1SCA114610R1001
BrandABB
HK$1,096.19
單位
- - 4P - - - - A2, A3 - Yes 32 A 3 Screw DIN Rail
RS庫存編號 762-2610
製造零件編號1SCA115877R1001
BrandABB
HK$2,493.30
單位
- - 4P - - - - 00, 000 160A Yes 125 A 3 - DIN Rail
全新
RS庫存編號 212-5719
製造零件編號3KD2832-0NE10-0
BrandSiemens
HK$1,204.34
單位
- - - - - - - - - - - - - -
全新
RS庫存編號 213-1380
製造零件編號3LD2318-0TK11
BrandSiemens
HK$3,799.90
單位
3P Non-fused 3 SENTRON 3LD Single Throw Enclosed Size 5 160A - 160A - - -
RS庫存編號 707-6155
製造零件編號2CSM200893R1801
BrandABB
HK$110.97
單位
- - SP + N - - - - 10 x 38 mm - - 32 A 1 - -
RS庫存編號 204-1582
製造零件編號T0-1-8200/SE1
BrandEaton
HK$1,430.14
單位
- - - - - - - - - - - - - -
RS庫存編號 172-3018
製造零件編號36153016
BrandSocomec
HK$2,920.94
單位
NO/NC, 2NO/2NC - 3 FUSERBLOC - - - 00 160A Yes 160 A 3 Cage DIN Rail
RS庫存編號 179-9647
製造零件編號36153010
BrandSocomec
HK$1,837.24
單位
3P - 3 FUSERBLOC - - - 22 x 58 mm 100A Yes 100 A - - DIN Rail
RS庫存編號 136-5277
BrandRS PRO
HK$1,379.95
單位
6NO - 6 - - 6PST - - - - 63A 3 - Wall Mount
全新
RS庫存編號 212-5794
製造零件編號3LD2545-0TK53
BrandSiemens
HK$924.02
單位
- - - - - - - - - - - - - -
RS庫存編號 708-1778
製造零件編號GS2NB3
HK$4,252.02
單位
- - 3P - - - - B1, B2, B3 - Yes - 3 Wire Lead -
全新
RS庫存編號 213-1366
製造零件編號3NP1133-1BC10
BrandSiemens
HK$625.01
單位
- Fused 3 SENTRON 3NP11 - - NH00, NH000 - - 160A - - -
全新
RS庫存編號 212-5776
製造零件編號3LD2013-0TK51
BrandSiemens
HK$527.42
單位
- - - - - - - - - - - - - -
全新
RS庫存編號 212-5798
製造零件編號3LD2814-0TK51
BrandSiemens
HK$1,578.10
單位
- - - - - - - - - - - - - -
RS庫存編號 179-9657
製造零件編號57025014
BrandSocomec
HK$723.95
單位
- - - - - - - - - - - - - -