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. 707-6158
Mfr. Part No.2CSM200883R1801 E 92/32
BrandABB
MYR85.06
Each
units
- - DP - - - - 10 x 38 mm - - 32 A 1 - -
RS Stock No. 518-7130
Mfr. Part No.3LD2250-0TK13
BrandSiemens
MYR251.29
Each
units
- - - - - - - - 10A - 32 A - - Panel Mount
RS Stock No. 781-3888
Mfr. Part No.3841 6016
BrandSocomec
MYR1,730.28
Each
units
- - - - - - - - - - - - - -
RS Stock No. 707-6168
Mfr. Part No.2CSM204713R1801 E 91/32 PV
BrandABB
MYR49.39
Each
units
- - SP - - - - 10 x 38 mm - - 32 A 1 - -
RS Stock No. 781-3799
Mfr. Part No.3631 3003
BrandSocomec
MYR560.70
Each
units
- - - - - - - - - - - - - -
RS Stock No. 608-7586
Mfr. Part No.GK1EX
MYR1,136.13
Each
units
- - 3P + N - - - - 14 x 51mm - Yes 50A 1 Wire Lead -
RS Stock No. 686-7391
Mfr. Part No.OS32FB22A1N1 1SCA108853R1001
BrandABB
MYR704.22
Each
units
- - 4P - - - - A1 - Yes 32 A 3 Screw DIN Rail
RS Stock No. 707-6152
Mfr. Part No.2CSM204753R1801 E 93/32
BrandABB
MYR138.09
Each
units
- - 3P - - - - 10 x 38 mm - - 32 A 3 - -
RS Stock No. 781-3890
Mfr. Part No.38416024
BrandSocomec
MYR3,240.24
Each
units
- - - - - - - - - - - - - -
RS Stock No. 819-961
Mfr. Part No.30KXSC2F
BrandEaton
MYR1,333.60
Each
units
- - SP - - - - - - - 32 A 1 - -
RS Stock No. 815-3691
Mfr. Part No.GS1DDU3
MYR961.57
Each
units
- - - - - - - - - - - - - -
RS Stock No. 608-7564
Mfr. Part No.GK1ET
MYR1,023.92
Each
units
- - 4P - - - - 14 x 51mm - Yes 50A - Wire Lead -
RS Stock No. 238-4827
Mfr. Part No.0 058 21
BrandLegrand
MYR104.39
Each
units
- - SP + N - - - - 10.3 x 25.8 mm - - 16 A 1 Cage DIN rail
RS Stock No. 608-7570
Mfr. Part No.GK1EW
MYR868.80
Each
units
- - 3P - - - - 14 x 51mm - Yes 50A 1 Wire Lead -
RS Stock No. 676-3233
Mfr. Part No.GS2S3
MYR7,256.38
Each
units
- - - - - - - - - - - - - -
RS Stock No. 513-5741
Mfr. Part No.3841 3039
BrandSocomec
MYR2,842.72
Each
units
- - 3P - - - - - 10A - 400 A 3 - -
RS Stock No. 762-2610
Mfr. Part No.OS125GD04N2P 1SCA115877R1001
BrandABB
MYR1,520.92
Each
units
- - 4P - - - - 00, 000 160A Yes 125 A 3 - DIN Rail
RS Stock No. 708-1769
Mfr. Part No.GS2LB3
MYR1,657.48
Each
units
- - 3P - - - - B1, B2 - Yes - 3 Wire Lead -
RS Stock No. 710-0586
Mfr. Part No.OS100GB04N1P 1SCA114614R1001
BrandABB
MYR1,106.35
Each
units
- - 4P - - - - A2, A3, A4 - Yes 100 A 3 - DIN Rail
RS Stock No. 727-2372
Mfr. Part No.2CMA142422R1000 BWS 625 TPN
BrandABB
MYR727.23
Each
units
NO - 6P - - - - - 50A Yes 25 A - Cable -