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. 781-3897
Mfr. Part No.38416021
BrandSocomec
PHP24,154.04
Each
units
- 4P - - - B1, B2 - Yes 200 A - Shroud DIN Rail - -
RS Stock No. 727-5787
Mfr. Part No.1SCA022709R9330
BrandABB
PHP25,186.23
Each
units
- 3P - - - B1-B2 - Yes 200 A 3 Screw DIN Rail - -
RS Stock No. 513-5729
Mfr. Part No.3841 3021
BrandSocomec
PHP17,591.19
Each
units
- 3P - - - B1-B2 200A - 200 A 3 - - - -
RS Stock No. 781-3907
Mfr. Part No.3841 6039
BrandSocomec
PHP51,059.78
Each
units
- 4P - - - B1, B2, B3, B4 - Yes 400 A - Shroud DIN Rail - -
RS Stock No. 398-5235
Mfr. Part No.AAE003-251/Z038
BrandEICHOFF
PHP433.27
Each
units
- - - - - - - - - - - Panel Mount - -
RS Stock No. 819-977
Mfr. Part No.30KXTNC2F
BrandEaton
PHP17,824.15
Each
units
- 3P - - - - - - 32 A 3 - - - -
RS Stock No. 710-0576
Mfr. Part No.1SCA114610R1001
BrandABB
PHP7,953.38
Each
units
- 4P - - - A2, A3 - Yes 32 A 3 Screw DIN Rail - -
RS Stock No. 238-4849
Mfr. Part No.0 058 23
BrandLegrand
PHP1,125.46
Each
units
- SP + N - - - 10.3 x 31.5 mm - - 25 A 1 Cage DIN rail -5°C +40°C
RS Stock No. 2509646450
Mfr. Part No.KKVM332CC Y/R
BrandAltech
PHP9,487.08
Each
units
- - - - - - - - - - - - - -
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