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 608-8040
製造零件編號GS1KD3
HK$4,187.04
單位
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全新
RS庫存編號 212-0288
製造零件編號VBF2GE
HK$550.59
單位
- - 3 TeSys VBF - Enclosed - 50A - 32A - - -
全新
RS庫存編號 212-5810
製造零件編號3LD3250-0TK11
BrandSiemens
HK$332.23
單位
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RS庫存編號 202-7102
製造零件編號5SG7230
BrandSiemens
HK$1,546.95
單位
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RS庫存編號 182-8463
製造零件編號57035013
BrandSocomec
HK$780.64
單位
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RS庫存編號 203-9643
製造零件編號5SG7113
BrandSiemens
HK$373.76
單位
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RS庫存編號 781-3783
製造零件編號3631 3002
BrandSocomec
HK$718.35
單位
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RS庫存編號 710-0570
製造零件編號1SCA115235R1001
BrandABB
HK$1,460.42
單位
- - 3P - - - - A2, A3 - Yes 63 A 3 Screw DIN Rail
RS庫存編號 204-1576
製造零件編號P3-100/SE3
BrandEaton
HK$2,618.50
單位
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全新
RS庫存編號 212-5806
製造零件編號3LD3230-0TK11
BrandSiemens
HK$314.58
單位
- - - - - - - - - - - - - -
RS庫存編號 727-5838
製造零件編號1SCA022719R0840
BrandABB
HK$7,315.63
單位
- - 3P - - - - B1-B4 - Yes 400 A 3 Screw DIN Rail
全新
RS庫存編號 212-5761
製造零件編號3KF2312-0MF51
BrandSiemens
HK$2,803.21
單位
- - - - - - - - - - - - - -
RS庫存編號 204-1561
製造零件編號DMM-125/3/SE4/P-R
BrandEaton
HK$4,334.49
單位
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全新
RS庫存編號 213-1382
製造零件編號3LD2504-1TP51
BrandSiemens
HK$847.19
單位
- Non-fused 3 SENTRON 3LD Single Throw Enclosed Size 3 63A - 63A - - -
全新
RS庫存編號 213-1403
製造零件編號5TE1330
BrandSiemens
HK$1,941.48
單位
3P Fused 3 SENTRON 5TE Single Throw Enclosed - 160A - 160A - - -
RS庫存編號 781-3838
製造零件編號3831 6011
BrandSocomec
HK$2,396.74
單位
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RS庫存編號 204-1579
製造零件編號T0-2-1/SE1/SVB
BrandEaton
HK$1,466.89
單位
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全新
RS庫存編號 212-5726
製造零件編號3KD3630-0NE10-0
BrandSiemens
HK$1,941.48
單位
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RS庫存編號 202-7126
製造零件編號5SG7611-0KK16
BrandSiemens
HK$163.001
/個 (每包:12個)
單位
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全新
RS庫存編號 212-5792
製造零件編號3LD2530-0TK13
BrandSiemens
HK$585.56
單位
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