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庫存編號 762-2604
製造零件編號OS63GD03P 1SCA115207R1001
BrandABB
HK$1,225.77
單位
- - 3P - - - - 000 80A Yes 63 A 3 - DIN Rail
全新
RS庫存編號 212-5737
製造零件編號3KD4832-0QE10-0
BrandSiemens
HK$10,957.80
單位
- - - - - - - - - - - - - -
RS庫存編號 726-4737
製造零件編號103GNC
BrandEaton
HK$9,914.60
單位
- - 3P + N - - - - - - - 100A 3 - -
全新
RS庫存編號 218-3196
製造零件編號3KD3432-2NE10-0
BrandSiemens
HK$2,213.05
單位
- Fused 3 SENTRON 3KD3 - - - - - 160A - - -
全新
RS庫存編號 218-3263
製造零件編號3KF2312-2LF11
BrandSiemens
HK$2,997.28
單位
- Fused 3 SENTRON 3KF - - NH00, NH000 - - 125A - - -
RS庫存編號 819-955
製造零件編號15KXTNC2F
BrandEaton
HK$2,445.85
單位
- - 3P - - - - - - - 20 A 3 - -
RS庫存編號 781-3856
製造零件編號3831 3024
BrandSocomec
HK$5,216.56
單位
- - - - - - - - - - - - - -
全新
RS庫存編號 218-3230
製造零件編號3KD4642-0QE10-0
BrandSiemens
HK$10,678.48
單位
- Fused 4 SENTRON 3KD4 - - - - - 630A - - -
全新
RS庫存編號 212-0281
製造零件編號LV438100
HK$3,473.66
單位
- - 4 Compact NSX DC - - - - - 100A - - -
全新
RS庫存編號 219-8312
製造零件編號DK1CB92
HK$48.595
/個 (每包:10個)
單位
- Fused 1 TeSys DK1C - - 10 x 38mm 32A - - - - -
全新
RS庫存編號 218-3232
製造零件編號3KD4840-0QE20-0
BrandSiemens
HK$12,998.96
單位
- Fused 4 SENTRON 3KD4 - - - - - 800A - - -
全新
RS庫存編號 218-3287
製造零件編號3KF5480-0LF11
BrandSiemens
HK$20,304.16
單位
- Fused 4 SENTRON 3KF - - NH2, NH3 - - 800A - - -
全新
RS庫存編號 218-3206
製造零件編號3KD3640-0PE10-0
BrandSiemens
HK$3,115.45
單位
- Fused 4 SENTRON 3KD3 - - - - - 200A - - -
RS庫存編號 781-3783
製造零件編號3631 3002
BrandSocomec
HK$743.30
單位
- - - - - - - - - - - - - -
全新
RS庫存編號 218-3269
製造零件編號3KF2416-0LF11
BrandSiemens
HK$3,373.28
單位
- Fused 4 SENTRON 3KF - - NH00, NH000 - - 160A - - -
全新
RS庫存編號 213-1357
製造零件編號3LD2330-0TK11
BrandSiemens
HK$3,502.20
單位
- Fused 3 SENTRON 3LD - - - - - 160A - - -
RS庫存編號 204-1577
製造零件編號P3-100/SE3/SVB
BrandEaton
HK$3,116.28
單位
- - - - - - - - - - - - - -
RS庫存編號 179-9646
製造零件編號36153005
BrandSocomec
HK$1,295.92
單位
3P - 3 FUSERBLOC - - - 14 x 51 mm 50A Yes 50 A - - DIN Rail
全新
RS庫存編號 218-3168
製造零件編號3KD2642-2ME10-0
BrandSiemens
HK$1,192.47
單位
- Fused 4 SENTRON 3KD2 - - - - - 63A - - -
RS庫存編號 513-2089
製造零件編號3641 3001
BrandSocomec
HK$464.31
單位
- - 3P - - - - A1 - Yes 32 A 3 Shroud -