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. 781-3783
Mfr. Part No.3631 3002
BrandSocomec
$134.83
Each
units
- - - - - - - - - - - - - -
RS Stock No. 513-5729
Mfr. Part No.3841 3021
BrandSocomec
$410.32
Each
units
- - 3P - - - - B1-B2 200A - 200 A 3 - -
RS Stock No. 781-3897
Mfr. Part No.38416021
BrandSocomec
$646.11
Each
units
- - - - - - - - - - - - - -
RS Stock No. 781-3884
Mfr. Part No.3841 6010
BrandSocomec
$397.30
Each
units
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RS Stock No. 513-5690
Mfr. Part No.3841 3006
BrandSocomec
$183.82
Each
units
- - 3P - - - - - 10A - 63 A 3 - -
RS Stock No. 513-5707
Mfr. Part No.3841 3010
BrandSocomec
$290.64
Each
units
- - 3P - - - - - 10A - 100 A 3 - -
RS Stock No. 781-3894
Mfr. Part No.3841 3032
BrandSocomec
$768.64
Each
units
- - - - - - - - - - - - - -
RS Stock No. 513-5684
Mfr. Part No.3841 3003
BrandSocomec
$91.09
Each
units
- - 3P - - - - - 10A - 32 A 3 - -
RS Stock No. 179-9656
Mfr. Part No.57025013
BrandSocomec
$198.51
1 Bag of 2
Bag(s)
3P - 3 RMS - - - 14 x 51 mm 50A Yes 50 A - - -
RS Stock No. 179-9657
Mfr. Part No.57025014
BrandSocomec
$135.88
Each
units
- - - - - - - - - - - - - -
RS Stock No. 781-3800
Mfr. Part No.3631 4004
BrandSocomec
$237.45
Each
units
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RS Stock No. 781-3878
Mfr. Part No.3641 4001
BrandSocomec
$146.81
Each
units
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RS Stock No. 781-3856
Mfr. Part No.3831 3024
BrandSocomec
$946.25
Each
units
- - - - - - - - - - - - - -
RS Stock No. 781-3881
Mfr. Part No.3841 6006
BrandSocomec
$208.47
Each
units
- - - - - - - - - - - - - -
RS Stock No. 781-3840
Mfr. Part No.3831 6012
BrandSocomec
$451.04
Each
units
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RS Stock No. 182-8454
Mfr. Part No.36153024
BrandSocomec
$908.36
Each
units
- - - - - - - - - - - - - -
RS Stock No. 781-3825
Mfr. Part No.3831 3006
BrandSocomec
$313.42
Each
units
- - - - - - - - - - - - - -
RS Stock No. 781-3806
Mfr. Part No.3631 3004
BrandSocomec
$213.86
Each
units
- - - - - - - - - - - - - -
RS Stock No. 513-5735
Mfr. Part No.3841 3024
BrandSocomec
$803.38
Each
units
- - 3P - - - - - 10A - 250 A 3 - -
RS Stock No. 781-3888
Mfr. Part No.3841 6016
BrandSocomec
$533.94
Each
units
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