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 Number of Poles Range Series Throw Configuration Mechanical Fuse Size Fuse Current Rating Auxiliary Contacts Available Maximum Current Electrical Phase Terminal Type Mounting Type Minimum Operating Temperature Maximum Operating Temperature
RS Stock No. 136-5277
BrandRS PRO
SGD246.44
Each
units
6NO 6 - - 6PST - - - 63A 3 - Wall Mount - -
RS Stock No. 781-3872
Mfr. Part No.3841 6003
BrandSocomec
SGD109.52
Each
units
- 4P - - - A1 - Yes 32 A - Shroud DIN Rail - -
RS Stock No. 819-977
Mfr. Part No.30KXTNC2F
BrandEaton
SGD500.69
Each
units
- 3P - - - - - - 32 A 3 - - - -
RS Stock No. 535-0912
Mfr. Part No.MGFA0633C
SGD441.05
Each
units
- - - - - - - - - - - - - -
RS Stock No. 726-4917
Mfr. Part No.60KXTNC2F
BrandEaton
SGD802.76
Each
units
- 3P + N - - - SB4 - - 63 A 3 - - - -
RS Stock No. 707-6146
Mfr. Part No.2CSM200923R1801
BrandABB
SGD8.60
Each
units
- SP - - - 10 x 38 mm - - 32 A 1 - - - -
RS Stock No. 762-2610
Mfr. Part No.1SCA115877R1001
BrandABB
SGD538.25
Each
units
- 4P - - - 00, 000 160A Yes 125 A 3 - DIN Rail - -
RS Stock No. 676-3227
Mfr. Part No.GS2L3
SGD600.36
Each
units
- - - - - - - - - - - - - -
RS Stock No. 513-5729
Mfr. Part No.3841 3021
BrandSocomec
SGD360.33
Each
units
- 3P - - - B1-B2 200A - 200 A 3 - - - -
RS Stock No. 762-2604
Mfr. Part No.1SCA115207R1001
BrandABB
SGD249.51
Each
units
- 3P - - - 000 80A Yes 63 A 3 - DIN Rail - -
RS Stock No. 247-4065
Mfr. Part No.DTL400KIT
SGD504.38
Each
units
- - - - - - - - - - - - - -
RS Stock No. 781-3799
Mfr. Part No.3631 3003
BrandSocomec
SGD117.77
Each
units
- 3P - - - 10 x 38 mm - Yes 32 A - Shroud DIN Rail - -
RS Stock No. 707-6168
Mfr. Part No.2CSM204713R1801
BrandABB
SGD15.56
Each
units
- SP - - - 10 x 38 mm - - 32 A 1 - - - -
RS Stock No. 781-3894
Mfr. Part No.3841 3032
BrandSocomec
SGD675.01
Each
units
- 3P - - - B1, B2, B3 - Yes 315 A - Shroud DIN Rail - -
RS Stock No. 513-2089
Mfr. Part No.3641 3001
BrandSocomec
SGD73.96
Each
units
- 3P - - - A1 - Yes 32 A 3 Shroud - - -
RS Stock No. 710-0589
Mfr. Part No.1SCA115238R1001
BrandABB
SGD305.31
Each
units
- 4P - - - A2, A3 - Yes 63 A 3 Screw DIN Rail - -
RS Stock No. 676-3233
Mfr. Part No.GS2S3
SGD2,059.75
Each
units
- - - - - - - - - - - - - -
RS Stock No. 813-9563
Mfr. Part No.GS2GU3N
SGD753.98
Each
units
- - - - - - - - - - - - - -
RS Stock No. 781-3816
Mfr. Part No.3831 6005
BrandSocomec
SGD209.33
Each
units
- 4P - - - 14 x 51 mm - Yes 50 A - Shroud DIN Rail - -
RS Stock No. 781-3907
Mfr. Part No.3841 6039
BrandSocomec
SGD1,199.35
Each
units
- 4P - - - B1, B2, B3, B4 - Yes 400 A - Shroud DIN Rail - -