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
New
RS Stock No. 218-3180
Mfr. Part No.3KD3040-0NE20-0
BrandSiemens
PHP9,060.37
Each
units
- Fused 4 SENTRON 3KD3 - - - - - 100A - - -
RS Stock No. 608-7592
Mfr. Part No.GK1EY
PHP9,763.03
Each
units
- - 4P - - - - 14 x 51mm - Yes 50A 1 Wire Lead -
RS Stock No. 204-1585
Mfr. Part No.T0-2-8900/SE1/SVB
BrandEaton
PHP9,948.41
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 216-5974
Mfr. Part No.5TE1340
BrandSiemens
PHP14,575.38
Each
units
3P Fused 3 SENTRON 5TE Single Throw Enclosed - 200A - 200A - - -
New
RS Stock No. 218-3276
Mfr. Part No.3KF4340-0MF11
BrandSiemens
PHP43,397.87
Each
units
- Fused 3 SENTRON 3KF - - NH1, NH2 - - 400A - - -
New
RS Stock No. 218-3291
Mfr. Part No.3LD2013-1TL51
BrandSiemens
PHP3,794.85
Each
units
- Fused 4 SENTRON 3LD - - - - - 16A - - -
New
RS Stock No. 218-3188
Mfr. Part No.3KD3240-2NE10-0
BrandSiemens
PHP12,408.77
Each
units
- Fused 4 SENTRON 3KD3 - - - - - 125A - - -
RS Stock No. 726-4737
Mfr. Part No.103GNC
BrandEaton
PHP64,435.18
Each
units
- - 3P + N - - - - - - - 100A 3 - -
RS Stock No. 513-5735
Mfr. Part No.3841 3024
BrandSocomec
PHP20,378.41
Each
units
- - 3P - - - - - 10A - 250 A 3 - -
New
RS Stock No. 212-5799
Mfr. Part No.3LD2814-0TK53
BrandSiemens
PHP10,503.85
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 218-3294
Mfr. Part No.3LD2044-1TL53
BrandSiemens
PHP3,479.71
Each
units
- Fused 4 SENTRON 3LD - - - - - 16A - - -
New
RS Stock No. 212-5785
Mfr. Part No.3LD2203-1TP51
BrandSiemens
PHP3,703.99
Each
units
- - - - - - - - - - - - - -
RS Stock No. 203-9643
Mfr. Part No.5SG7113
BrandSiemens
PHP2,487.75
Each
units
- - - - - - - - - - - - - -
RS Stock No. 513-2073
Mfr. Part No.3641 3000
BrandSocomec
PHP3,354.22
Each
units
- - 3P - - - - A1 - Yes 20 A 3 Shroud -
RS Stock No. 202-7126
Mfr. Part No.5SG7611-0KK16
BrandSiemens
PHP1,084.938
Each (In a Pack of 12)
units
- - - - - - - - - - - - - -
New
RS Stock No. 218-3270
Mfr. Part No.3KF2416-0MF11
BrandSiemens
PHP20,615.63
Each
units
- Fused 4 SENTRON 3KF - - NH00, NH000 - - 160A - - -
RS Stock No. 204-1577
Mfr. Part No.P3-100/SE3/SVB
BrandEaton
PHP20,252.77
Each
units
- - - - - - - - - - - - - -
RS Stock No. 204-1574
Mfr. Part No.P3-63/SE3
BrandEaton
PHP14,345.11
Each
units
- - - - - - - - - - - - - -
RS Stock No. 179-9648
Mfr. Part No.38313016
BrandSocomec
PHP24,194.64
Each
units
3P - 3 FUSERBLOC - - - - 160A Yes 160 A - - DIN Rail
New
RS Stock No. 218-3252
Mfr. Part No.3KF1306-2LB11
BrandSiemens
PHP15,560.20
Each
units
- Fused 3 SENTRON 3KF - - NH00, NH000 - - 63A - - -