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 Stock No. 819-955
Mfr. Part No.15KXTNC2F
BrandEaton
TWD8,814.00
Each
units
- - 3P - - - - - - - 20 A 3 - -
RS Stock No. 819-949
Mfr. Part No.15KXSC2F
BrandEaton
TWD6,251.00
Each
units
- - SP - - - - - - - 20 A 1 - -
RS Stock No. 513-5713
Mfr. Part No.3841 3016
BrandSocomec
TWD7,589.00
Each
units
- - 3P - - - - - 10A - 160 A 3 - -
RS Stock No. 676-3227
Mfr. Part No.GS2L3
TWD13,171.00
Each
units
- - - - - - - - - - - - - -
RS Stock No. 819-961
Mfr. Part No.30KXSC2F
BrandEaton
TWD8,176.00
Each
units
- - SP - - - - - - - 32 A 1 - -
RS Stock No. 819-983
Mfr. Part No.60KXSC2F
BrandEaton
TWD12,418.00
Each
units
- - SP - - - - - - - 63 A 1 - -
RS Stock No. 238-4833
Mfr. Part No.0 058 22
BrandLegrand
TWD662.00
Each
units
- - SP + N - - - - 8.5 x 31.5 mm - - 20 A 1 Cage DIN rail
New
RS Stock No. 211-0195
Mfr. Part No.5SG7631-0KK06
BrandSiemens
TWD1,835.00
Each (In a Pack of 4)
units
- Fused 3 MINIZED 5SG - - D01 0.3A - 6A - - -
RS Stock No. 534-5156
Mfr. Part No.MGFA0203C
TWD7,734.00
Each
units
- - - - - - - - - - - - - -
RS Stock No. 122-0516
Mfr. Part No.38313039
BrandSocomec
TWD33,081.00
Each
units
- - 3 - FUSERBLOC - - BS88 400A Yes - 3 Screw DIN Rail
RS Stock No. 781-3840
Mfr. Part No.3831 6012
BrandSocomec
TWD10,789.00
Each
units
- - - - - - - - - - - - - -
RS Stock No. 762-2446
Mfr. Part No.OS20TPN-B
BrandABB
TWD7,520.00
Each
units
- - - - - - - - - - - - - -
RS Stock No. 781-3853
Mfr. Part No.3831 6015
BrandSocomec
TWD12,099.00
Each
units
- - - - - - - - - - - - - -
RS Stock No. 762-2607
Mfr. Part No.1SCA115189R1001
BrandABB
TWD6,086.00
Each
units
- - 3P - - - - 000 80A Yes 32 A 3 - DIN Rail
RS Stock No. 727-5807
Mfr. Part No.1SCA022750R6660
BrandABB
TWD19,745.00
Each
units
- - 3P - - - - B1-B3 - Yes 250 A 3 Screw DIN Rail
New
RS Stock No. 203-9645
Mfr. Part No.5SG7163
BrandSiemens
TWD3,567.00
Each
units
- - - - - - - - - - - - - -
RS Stock No. 727-5816
Mfr. Part No.1SCA022778R9940
BrandABB
TWD22,009.00
Each
units
- - 4P - - - - B1-B3 - Yes 250 A 3 Screw DIN Rail
RS Stock No. 727-2362
Mfr. Part No.2CMA142417R1000
BrandABB
TWD1,937.00
Each
units
NO - 3P - - - - - 50A Yes 16 A - Cable -
RS Stock No. 781-3881
Mfr. Part No.3841 6006
BrandSocomec
TWD4,288.00
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 203-1994
Mfr. Part No.3NP1123-1CA20
BrandSiemens
TWD1,515.00
Each
units
- - - - - - - - - - - - - -