Isolator & Switch Disconnectors

Fused switches 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. You can find out more in our complete guide to isolators and switch disconnectors.

Fused switches 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 switches used for?

Fused switches 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 over a non-fused switch 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 switches

Fused switches 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. 182-8463
Mfr. Part No.57035013
BrandSocomec
PHP5,286.18
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 212-0293
Mfr. Part No.VBF6GEN
PHP23,838.42
Each
units
- - 3 TeSys VBF - Enclosed - 200A - 140A - - -
New
RS Stock No. 213-1368
Mfr. Part No.3NP1133-1CA20
BrandSiemens
PHP3,339.46
Each
units
- Fused 3 SENTRON 3NP11 - - NH00, NH000 - - 160A - - -
RS Stock No. 727-5807
Mfr. Part No.OS250B03P 1SCA022750R6660
BrandABB
PHP34,661.90
Each
units
- - - - - - - - - - - - - -
RS Stock No. 819-961
Mfr. Part No.30KXSC2F
BrandEaton
PHP14,782.81
Each
units
- - SP - - - - - - - 32 A 1 - -
RS Stock No. 136-5277
BrandRS PRO
PHP9,708.02
Each
units
6NO - 6 - - 6PST - - - - 63A 3 - Wall Mount
New
RS Stock No. 212-5821
Mfr. Part No.3LD3440-0TL11
BrandSiemens
PHP5,528.34
Each
units
- - 4 SENTRON 3LD3 Single Throw Enclosed - 63A - 63A - - -
New
RS Stock No. 218-3301
Mfr. Part No.3LD2230-0TK13
BrandSiemens
PHP2,402.97
Each
units
- Fused 3 SENTRON 3LD - - - - - 32A - - -
New
RS Stock No. 212-5804
Mfr. Part No.3LD3150-0TK11
BrandSiemens
PHP1,962.56
Each
units
3P - 3 SENTRON 3LD3 Single Throw Enclosed - 25A - 25A - - -
RS Stock No. 727-2375
Mfr. Part No.2CMA142420R1000 BWS 325 TPN
BrandABB
PHP3,746.42
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 212-5725
Mfr. Part No.3KD3430-2NE20-0
BrandSiemens
PHP11,747.73
Each
units
3P Fused 3 SENTRON 3KD Single Throw Enclosed Size 2 160A - 160A - - -
New
RS Stock No. 218-3239
Mfr. Part No.3KD5440-0RE10-0
BrandSiemens
PHP246,862.30
Each
units
- Fused 4 SENTRON 3KD4 - - - - - 1600A - - -
RS Stock No. 204-1574
Mfr. Part No.P3-63/SE3
BrandEaton
PHP14,716.97
Each
units
- - - - - - - - - - - - - -
RS Stock No. 710-0573
Mfr. Part No.OS32GB03P 1SCA115259R1001
BrandABB
PHP6,862.91
Each
units
- - 3P - - - - A2, A3 - Yes 32 A 3 Screw DIN Rail
New
RS Stock No. 212-5817
Mfr. Part No.3LD3430-0TK11
BrandSiemens
PHP3,220.26
Each
units
3P - 3 SENTRON 3LD3 Single Throw Enclosed - 63A - 63A - - -
RS Stock No. 513-5729
Mfr. Part No.3841 3021
BrandSocomec
PHP14,803.28
Each
units
- - 3P - - - - B1-B2 200A - 200 A 3 - -
New
RS Stock No. 212-5716
Mfr. Part No.3KD2830-0NE10-0
BrandSiemens
PHP5,666.53
Each
units
3P Fused 3 SENTRON 3KD Single Throw Enclosed Size 2 80A - 80A - - -
RS Stock No. 676-3209
Mfr. Part No.GS2F3
PHP11,758.15
Each
units
- - - - - - - - - - - - - -
RS Stock No. 781-3806
Mfr. Part No.3631 3004
BrandSocomec
PHP7,439.17
Each
units
- - - - - - - - - - - - - -
RS Stock No. 762-2648
Mfr. Part No.OS630D03P 1SCA022825R2830
BrandABB
PHP66,006.63
Each
units
- - - - - - - - - - - - - -