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. 708-1744
Mfr. Part No.GS2GB3
kr 1 457,43
Each
Units
- 3P - - - A2, A3 - Yes 40 A dc, 63 A ac 3 Wire Lead DIN Rail -20°C +70°C
RS Stock No. 710-0573
Mfr. Part No.1SCA115259R1001
BrandABB
kr 791,24
Each
Units
- 3P - - - A2, A3 - Yes 32 A 3 Screw DIN Rail - -
RS Stock No. 238-4833
Mfr. Part No.0 058 22
BrandLegrand
kr 146,23
Each
Units
- SP + N - - - 8.5 x 31.5 mm - - 20 A 1 Cage DIN rail -5°C +40°C
RS Stock No. 762-2648
Mfr. Part No.1SCA022825R2830
BrandABB
kr 16 492,37
Each
Units
- 3P - - - 3 800A Yes 630 A 3 - DIN Rail - -
RS Stock No. 710-0589
Mfr. Part No.1SCA115238R1001
BrandABB
kr 1 386,69
Each
Units
- 4P - - - A2, A3 - Yes 63 A 3 Screw DIN Rail - -
RS Stock No. 608-7564
Mfr. Part No.GK1ET
kr 643,62
Each
Units
- 4P - - - 14 x 51 mm - Yes 50 A - Wire Lead DIN Rail -50°C +70°C
RS Stock No. 419-555
Mfr. Part No.5500S
kr 126,81
Each
Units
- DP - Sentry - - - - 100 A - Tunnel - -5°C +40°C
RS Stock No. 707-6152
Mfr. Part No.2CSM204753R1801
BrandABB
kr 213,56
Each
Units
- 3P - - - 10 x 38 mm - - 32 A 3 - - - -
RS Stock No. 710-0576
Mfr. Part No.1SCA114610R1001
BrandABB
kr 971,78
Each
Units
- 4P - - - A2, A3 - Yes 32 A 3 Screw DIN Rail - -
RS Stock No. 710-0582
Mfr. Part No.1SCA114613R1001
BrandABB
kr 1 517,87
Each
Units
- 3P - - - A2, A3, A4 - Yes 100 A 3 - DIN Rail -40°C +40°C
RS Stock No. 172-3018
Mfr. Part No.36153016
BrandSocomec
kr 6 418,39
Each
Units
NO/NC, 2NO/2NC 3 FUSERBLOC - - 00 160A Yes 160 A 3 Cage DIN Rail - -
RS Stock No. 726-4778
Mfr. Part No.125KXTNC2F
BrandEaton
kr 5 582,77
Each
Units
- 3P + N - - - SB3, SB4, SD6, SO - - 125 A 3 - - - -
RS Stock No. 608-7968
Mfr. Part No.GS1FD3
kr 1 426,12
Each
Units
- 3P - - - 14 x 51 mm - Yes 40 A dc, 50 A ac 3 Screw DIN Rail - -
RS Stock No. 608-8040
Mfr. Part No.GS1KD3
kr 2 340,17
Each
Units
- 3P - - - 22 x 58 mm - Yes 100 A dc, 125 A ac 3 Screw DIN Rail - -
RS Stock No. 710-0586
Mfr. Part No.1SCA114614R1001
BrandABB
kr 1 895,46
Each
Units
- 4P - - - A2, A3, A4 - Yes 100 A 3 - DIN Rail -40°C +40°C
RS Stock No. 781-3796
Mfr. Part No.3631 5002
BrandSocomec
kr 854,43
Each
Units
- 3P + N - - - 10 x 38 mm - Yes 25 A - Shroud DIN Rail - -
RS Stock No. 534-5178
Mfr. Part No.MGFA1003C
kr 4 985,51
Each
Units
- 3P + N - - - A2, A3, A4, CEO100 - - 100 A - - - - -
RS Stock No. 686-7385
Mfr. Part No.1SCA108790R1001 - OS20FB12A1
BrandABB
kr 427,47
Each
Units
- 3P - - - A1 - Yes 20 A - Screw DIN Rail - -
RS Stock No. 727-2369
Mfr. Part No.2CMA142423R1000
BrandABB
kr 637,08
Each
Units
NO 3P - - - - 50A Yes 16 A - Cable - - -
RS Stock No. 179-9656
Mfr. Part No.57025013
BrandSocomec
kr 966,39
1 Bag of 2
Bag(s)
3P 3 RMS - - 14 x 51 mm 50A Yes 50 A - - - - -