Isolator & Switch Disconnectors

Fused switches 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. You can find out more in our complete guide to isolators and switch disconnectors.

Fused switches 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 switches used for?

Fused switches 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 over a non-fused switch 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 switches

Fused switches mainly differ depending on the type of fuses they house, the number of poles they have, and the terminal type.


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Omschrijving Prijs 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-stocknr. 136-5277
FabrikantRS PRO
€ 173,74
Each
Aantal stuks
6NO - 6 - - 6PST - - - - 63A 3 - Wall Mount
RS-stocknr. 247-4065
FabrikantnummerDTL400KIT
FabrikantAlbrecht Jung
€ 544,43
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 513-5690
Fabrikantnummer3841 3006
FabrikantSocomec
€ 98,63
Each
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- - 3P - - - - - 10A - 63 A 3 - -
RS-stocknr. 518-7130
Fabrikantnummer3LD2250-0TK13
FabrikantSiemens
€ 38,25
Each
Aantal stuks
- - - - - - - - 10A - 32 A - - Panel Mount
RS-stocknr. 708-1744
FabrikantnummerGS2GB3
€ 205,00
Each
Aantal stuks
- - 3P - - - - A2, A3 - Yes - 3 Wire Lead -
RS-stocknr. 813-9563
FabrikantnummerGS2GU3N
€ 274,83
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 499-7201
Fabrikantnummer78640548 & T0-2-8900/E/EZ-P1(RS499-7201)
FabrikantEaton
€ 19,51
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 608-8006
FabrikantnummerGS1JD3
€ 238,71
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 708-1756
FabrikantnummerGS2JB3
€ 241,00
Each
Aantal stuks
- - 3P - - - - A4 - Yes - 3 Wire Lead -
RS-stocknr. 419-031
FabrikantnummerKNB50SF4
€ 238,64
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 676-3221
FabrikantnummerGS2N3
€ 550,51
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 608-7586
FabrikantnummerGK1EX
€ 128,58
Each
Aantal stuks
- - 3P + N - - - - 14 x 51mm - Yes 50A 1 Wire Lead -
RS-stocknr. 707-6146
Fabrikantnummer2CSM200923R1801 E 91/32
FabrikantABB
€ 7,14
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 398-5257
FabrikantnummerAAE003-251/029
FabrikantEICHOFF
€ 11,50
Each
Aantal stuks
- - - - - - - - - - - - - Panel Mount
RS-stocknr. 238-4833
Fabrikantnummer0 058 22
FabrikantLegrand
€ 14,96
Each
Aantal stuks
- - SP + N - - - - 8.5 x 31.5 mm - - 20 A 1 Cage DIN rail
RS-stocknr. 727-2369
Fabrikantnummer2CMA142423R1000 BWS 316Y TPN
FabrikantABB
€ 38,12
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 707-6152
Fabrikantnummer2CSM204753R1801 E 93/32
FabrikantABB
€ 28,07
Each
Aantal stuks
- - 3P - - - - 10 x 38 mm - - 32 A 3 - -
RS-stocknr. 762-2641
FabrikantnummerOS400D03P 1SCA022719R0250
FabrikantABB
€ 834,39
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 707-6168
Fabrikantnummer2CSM204713R1801 E 91/32 PV
FabrikantABB
€ 8,98
Each
Aantal stuks
- - SP - - - - 10 x 38 mm - - 32 A 1 - -
RS-stocknr. 781-3822
Fabrikantnummer3831 3010
FabrikantSocomec
€ 164,91
Each
Aantal stuks
- - - - - - - - - - - - - -