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 608-7564
製造零件編號GK1ET
HK$1,670.24
單位
- - 4P - - - - 14 x 51mm - Yes 50A - Wire Lead -
RS庫存編號 608-7968
製造零件編號GS1FD3
HK$2,631.20
單位
- - - - - - - - - - - - - -
RS庫存編號 676-3221
製造零件編號GS2N3
HK$5,581.49
單位
- - - - - - - - - - - - - -
RS庫存編號 708-1740
製造零件編號GS2DB4
HK$884.08
單位
- - 4P - - - - A1 - Yes - 3 Wire Lead -
全新
RS庫存編號 212-0290
製造零件編號VBF4GE
HK$988.85
單位
- - 3 TeSys VBF - Enclosed - 80A - 63A - - -
RS庫存編號 708-1756
製造零件編號GS2JB3
HK$1,505.05
單位
- - 3P - - - - A4 - Yes - 3 Wire Lead -
全新
RS庫存編號 211-2291
製造零件編號GS1GD3
HK$2,696.09
單位
- Fused 3 TeSys GS GS1G - Enclosed - 63A - 63A - - -
RS庫存編號 813-9563
製造零件編號GS2GU3N
HK$2,484.44
單位
- - - - - - - - - - - - - -
RS庫存編號 534-5156
製造零件編號MGFA0203C
HK$1,803.60
單位
- - - - - - - - - - - - - -
全新
RS庫存編號 212-0292
製造零件編號VBF5GEN
HK$3,447.27
單位
- - 3 TeSys VBF - Enclosed - 125A - 100A - - -
全新
RS庫存編號 212-0296
製造零件編號VC4GUN
HK$1,620.73
單位
- - 3 TeSys VC-GUN - Enclosed - 80A - 63A - - -
RS庫存編號 608-8006
製造零件編號GS1JD3
HK$3,832.40
單位
- - - - - - - - - - - - - -
RS庫存編號 676-3233
製造零件編號GS2S3
HK$10,663.83
單位
- - - - - - - - - - - - - -
RS庫存編號 815-3691
製造零件編號GS1DDU3
HK$1,988.13
單位
- - - - - - - - - - - - - -
RS庫存編號 419-031
製造零件編號KNB50SF4
HK$2,098.76
單位
- - - - - - - - - - - - - -
RS庫存編號 708-1750
製造零件編號GS2JB4
HK$2,253.53
單位
- - 4P - - - - A4 - Yes - 3 Wire Lead -
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 -
RS庫存編號 181-2587
製造零件編號A9N15651
HK$258.96
單位
- - - Canalis - - - - - - 63A - - -
RS庫存編號 708-1769
製造零件編號GS2LB3
HK$2,706.44
單位
- - 3P - - - - B1, B2 - Yes - 3 Wire Lead -
RS庫存編號 534-5178
製造零件編號MGFA1003C
HK$7,024.94
單位
- - - - - - - - - - - - - -