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 513-5741
製造零件編號3841 3039
BrandSocomec
HK$4,418.68
單位
- - 3P - - - - - 10A - 400 A 3 - -
RS庫存編號 513-5729
製造零件編號3841 3021
BrandSocomec
HK$2,066.81
單位
- - 3P - - - - B1-B2 200A - 200 A 3 - -
RS庫存編號 608-7564
製造零件編號GK1ET
HK$1,670.24
單位
- - 4P - - - - 14 x 51 mm - Yes 50 A - Wire Lead DIN Rail
RS庫存編號 513-5707
製造零件編號3841 3010
BrandSocomec
HK$1,028.99
單位
- - 3P - - - - - 10A - 100 A 3 - -
RS庫存編號 247-4065
製造零件編號DTL400KIT
HK$2,879.45
單位
- - 3P - - - - NH02 - - 400 A 3 - Surface Mount
RS庫存編號 513-2073
製造零件編號3641 3000
BrandSocomec
HK$445.24
單位
- - 3P - - - - A1 - Yes 20 A 3 Shroud -
RS庫存編號 512-9459
製造零件編號OS100GB12P
BrandABB
HK$2,009.44
單位
- - 3P - - - - BS - Yes 100 A 3 Conduit DIN Rail
RS庫存編號 608-7968
製造零件編號GS1FD3
HK$2,631.20
單位
- - 3P - - - - 14 x 51 mm - Yes 40 A dc, 50 A ac 3 Screw DIN Rail
RS庫存編號 710-0573
製造零件編號1SCA115259R1001
BrandABB
HK$994.59
單位
- - 3P - - - - A2, A3 - Yes 32 A 3 Screw DIN Rail
RS庫存編號 513-5713
製造零件編號3841 3016
BrandSocomec
HK$1,858.62
單位
- - 3P - - - - - 10A - 160 A 3 - -
RS庫存編號 676-3221
製造零件編號GS2N3
HK$5,411.12
單位
- - 3P - - - - 1 - Yes 200 A dc, 250 A ac 3 - DIN rail
RS庫存編號 762-2446
製造零件編號OS20TPN-B
BrandABB
HK$1,939.77
單位
- - 3P + N - - - - A1 - - 20 A 3 - Wall Mount
RS庫存編號 686-7398
製造零件編號1SCA108840R1001
BrandABB
HK$974.34
單位
- - 3P - - - - A1 - Yes 32 A 3 Screw DIN Rail
RS庫存編號 726-4917
製造零件編號60KXTNC2F
BrandEaton
HK$4,582.86
單位
- - 3P + N - - - - SB4 - - 63 A 3 - -
RS庫存編號 499-7201
製造零件編號78640548 & T0-2-8900/E/EZ-P1(RS499-7201)
BrandEaton
HK$196.97
單位
- - 4P - - - - GG/gL 20A - 20 A - - Panel Mount
RS庫存編號 707-6152
製造零件編號2CSM204753R1801
BrandABB
HK$243.38
單位
- - 3P - - - - 10 x 38 mm - - 32 A 3 - -
RS庫存編號 762-2648
製造零件編號1SCA022825R2830
BrandABB
HK$11,771.76
單位
- - 3P - - - - 3 800A Yes 630 A 3 - DIN Rail
RS庫存編號 819-949
製造零件編號15KXSC2F
BrandEaton
HK$1,528.96
單位
- - SP - - - - - - - 20 A 1 - -
RS庫存編號 708-1740
製造零件編號GS2DB4
HK$960.96
單位
- - 4P - - - - A1 - Yes 20 A dc, 23 A ac 3 Wire Lead DIN Rail
RS庫存編號 781-3897
製造零件編號38416021
BrandSocomec
HK$3,254.53
單位
- - 4P - - - - B1, B2 - Yes 200 A - Shroud DIN Rail