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. 686-7385
Mfr. Part No.1SCA108790R1001 - OS20FB12A1
BrandABB
PHP5,852.24
Each
units
- 3P - - - A1 - Yes 20 A - Screw DIN Rail - -
RS Stock No. 238-4811
Mfr. Part No.0 058 20
BrandLegrand
PHP957.05
Each
units
- SP + N - - - 8.5 x 23 mm - - 10 A 1 Cage DIN rail -5°C +40°C
RS Stock No. 762-2455
Mfr. Part No.OS32TPN-B
BrandABB
PHP17,053.19
Each
units
- 3P + N - - - A2 - - 32 A 3 - Wall Mount - -
RS Stock No. 813-9563
Mfr. Part No.GS2GU3N
PHP27,672.87
Each
units
- 3 - - - J 100kA Yes 60 A 3 Cable DIN Rail - -
RS Stock No. 781-3878
Mfr. Part No.3641 4001
BrandSocomec
PHP4,748.90
Each
units
- 3P + N - - - A1 - Yes 32 A - Shroud DIN Rail - -
RS Stock No. 443-845
Mfr. Part No.DTL250KIT
PHP11,149.27
Each
units
- 3P - - - NH - - 250 A 3 - Surface Mount - -
RS Stock No. 122-0516
Mfr. Part No.38313039
BrandSocomec
PHP38,791.40
Each
units
- 3 - FUSERBLOC - BS88 400A Yes - 3 Screw DIN Rail - -
RS Stock No. 512-9471
Mfr. Part No.OS125B12
BrandABB
PHP23,913.66
Each
units
- 3P - - - A2, A3, A4 - Yes 125 A - Screw DIN Rail - -
RS Stock No. 762-2446
Mfr. Part No.OS20TPN-B
BrandABB
PHP12,915.38
Each
units
- 3P + N - - - A1 - - 20 A 3 - Wall Mount - -
RS Stock No. 707-6164
Mfr. Part No.2CSM204723R1801
BrandABB
PHP2,163.17
Each
units
- 4P - - - 10 x 38 mm - - 32 A 3 - - - -
RS Stock No. 781-3847
Mfr. Part No.3831 3012
BrandSocomec
PHP13,448.42
Each
units
- 3P - - - 00 - Yes 125 A - Shroud DIN Rail - -
RS Stock No. 708-1753
Mfr. Part No.GS2GB4
PHP10,015.65
Each
units
- 4P - - - A2, A3 - Yes 40 A dc, 63 A ac 3 Wire Lead DIN Rail -20°C +70°C
RS Stock No. 819-949
Mfr. Part No.15KXSC2F
BrandEaton
PHP9,915.49
Each
units
- SP - - - - - - 20 A 1 - - - -
RS Stock No. 781-3819
Mfr. Part No.3631 5004
BrandSocomec
PHP5,737.31
Each
units
- 3P + N - - - 14 x 51 mm - Yes 32 A - Shroud DIN Rail - -
RS Stock No. 727-5813
Mfr. Part No.1SCA022750R7800
BrandABB
PHP37,553.76
Each
units
- 4P - - - B1-B3 - Yes 250 A 3 Screw DIN Rail - -
RS Stock No. 707-6152
Mfr. Part No.2CSM204753R1801
BrandABB
PHP1,664.47
Each
units
- 3P - - - 10 x 38 mm - - 32 A 3 - - - -
RS Stock No. 676-3227
Mfr. Part No.GS2L3
PHP22,435.74
Each
units
- 3P - - - 0 - Yes 125 A dc, 160 A ac 3 - DIN rail -20°C +70°C
RS Stock No. 179-9656
Mfr. Part No.57025013
BrandSocomec
PHP6,341.10
1 Bag of 2
Bag(s)
3P 3 RMS - - 14 x 51 mm 50A Yes 50 A - - - - -
RS Stock No. 179-9646
Mfr. Part No.36153005
BrandSocomec
PHP6,520.56
Each
units
3P 3 FUSERBLOC - - 14 x 51 mm 50A Yes 50 A - - DIN Rail - -
RS Stock No. 184-9085
Mfr. Part No.CPD1253K
BrandContactum
PHP1,237.49
Each
units
- - - - - - - - 125 A 3 - - - -
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