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. 218-3215
Mfr. Part No.3KD4040-0PE10-0
BrandSiemens
PHP28,297.25
Each
units
- Fused 4 SENTRON 3KD4 - - - - - 315A - - -
New
RS Stock No. 216-5961
Mfr. Part No.3NP1143-1DA10
BrandSiemens
PHP7,615.96
Each
units
- Fused 3 SENTRON 3NP11 - - NH0, NH1 - - 250A - - -
New
RS Stock No. 218-3176
Mfr. Part No.3KD3030-0NE20-0
BrandSiemens
PHP7,353.35
Each
units
- Fused 3 SENTRON 3KD3 - - - - - 100A - - -
RS Stock No. 781-3831
Mfr. Part No.3831 6010
BrandSocomec
PHP14,938.26
Each
units
- - - - - - - - - - - - - -
RS Stock No. 202-7147
Mfr. Part No.5SG7631-0KK16
BrandSiemens
PHP3,634.885
Each (In a Pack of 4)
units
- - - - - - - - - - - - - -
RS Stock No. 819-983
Mfr. Part No.60KXSC2F
BrandEaton
PHP22,047.12
Each
units
- - SP - - - - - - - 63 A 1 - -
RS Stock No. 708-1744
Mfr. Part No.GS2GB3
PHP8,346.67
Each
units
- - 3P - - - - A2, A3 - Yes - 3 Wire Lead -
New
RS Stock No. 218-3224
Mfr. Part No.3KD4440-0QE10-0
BrandSiemens
PHP49,241.15
Each
units
- Fused 4 SENTRON 3KD4 - - - - - 500A - - -
New
RS Stock No. 212-5733
Mfr. Part No.3KD4032-0PE10-0
BrandSiemens
PHP26,881.57
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 218-3250
Mfr. Part No.3KF1303-2LB11
BrandSiemens
PHP12,868.35
Each
units
- Fused 3 SENTRON 3KF - - NH00, NH000 - - 32A - - -
New
RS Stock No. 218-3185
Mfr. Part No.3KD3230-0NE20-0
BrandSiemens
PHP8,863.41
Each
units
- Fused 3 SENTRON 3KD3 - - - - - 125A - - -
RS Stock No. 204-1572
Mfr. Part No.P1-32/SE1/SVB
BrandEaton
PHP11,473.13
Each
units
- - - - - - - - - - - - - -
RS Stock No. 608-7946
Mfr. Part No.GS1DD4
PHP15,252.48
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 212-5795
Mfr. Part No.3LD2555-0TK53
BrandSiemens
PHP4,623.08
Each
units
- - - - - - - - - - - - - -
RS Stock No. 513-2089
Mfr. Part No.3641 3001
BrandSocomec
PHP2,986.69
Each
units
- - 3P - - - - A1 - Yes 32 A 3 Shroud -
New
RS Stock No. 212-5727
Mfr. Part No.3KD3630-0NE20-0
BrandSiemens
PHP12,922.50
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 218-3279
Mfr. Part No.3KF5363-0MF11
BrandSiemens
PHP82,725.13
Each
units
- Fused 3 SENTRON 3KF - - NH2, NH3 - - 630A - - -
RS Stock No. 781-3787
Mfr. Part No.3631 4002
BrandSocomec
PHP5,725.58
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 213-1356
Mfr. Part No.3LD2318-1TL11
BrandSiemens
PHP31,918.16
Each
units
- Fused 4 SENTRON 3LD - - - - - 160A - - -
New
RS Stock No. 212-5784
Mfr. Part No.3LD2154-0TK51
BrandSiemens
PHP2,404.83
Each
units
- - - - - - - - - - - - - -