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
RS Stock No. 727-2366
Mfr. Part No.2CMA142426R1000
BrandABB
PHP3,311.97
Each
units
NO - 3P - - - - - 50A Yes 25 A - Cable -
RS Stock No. 819-977
Mfr. Part No.30KXTNC2F
BrandEaton
PHP19,443.81
Each
units
- - 3P - - - - - - - 32 A 3 - -
New
RS Stock No. 203-1963
Mfr. Part No.3KD3034-2NE40-0
BrandSiemens
PHP8,075.55
Each
units
- Fused 3 SENTRON 3KD - - Size 2 100A - 100 A - - -
New
RS Stock No. 204-1562
Mfr. Part No.DMM-160/3/SE4/P-R
BrandEaton
PHP28,463.74
Each
units
3 NO Fused 3 Main Switch, Maintenance Switch, Switch Disconnector DMM - Enclosed - 125A - 13.5 kA - - -
RS Stock No. 726-4778
Mfr. Part No.125KXTNC2F
BrandEaton
PHP56,361.04
Each
units
- - 3P + N - - - - SB3, SB4, SD6, SO - - 125 A 3 - -
RS Stock No. 762-2616
Mfr. Part No.1SCA115639R1001
BrandABB
PHP16,802.64
Each
units
- - 3P - - - - 00, 000 160A Yes 125 A 3 - DIN Rail
RS Stock No. 726-4911
Mfr. Part No.63GNC
BrandEaton
PHP42,008.92
Each
units
- - 3P + N - - - - SB3, SB4 - - 63 A 3 Tunnel -
RS Stock No. 172-3018
Mfr. Part No.36153016
BrandSocomec
PHP18,696.45
Each
units
2NO/2NC, NO/NC - 3 FUSERBLOC - - - 00 160A Yes 160 A 3 Cage DIN Rail
RS Stock No. 762-2452
Mfr. Part No.OS100TPN-B
BrandABB
PHP49,541.78
Each
units
- - 3P + N - - - - A2, A3 - - 100 A 3 - Wall Mount
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. 534-5156
Mfr. Part No.MGFA0203C
PHP8,173.97
Each
units
- - 3P + N - - - - A1, A2, NITD20 - - 20 A - - -
RS Stock No. 710-0576
Mfr. Part No.1SCA114610R1001
BrandABB
PHP8,066.70
Each
units
- - 4P - - - - A2, A3 - Yes 32 A 3 Screw DIN Rail
RS Stock No. 781-3890
Mfr. Part No.38416024
BrandSocomec
PHP34,098.73
Each
units
- - 4P - - - - B1, B2, B3 - Yes 250 A - Shroud DIN Rail
RS Stock No. 781-3894
Mfr. Part No.3841 3032
BrandSocomec
PHP26,212.51
Each
units
- - 3P - - - - B1, B2, B3 - Yes 315 A - Shroud DIN Rail
New
RS Stock No. 203-2271
Mfr. Part No.5TE8161
BrandSiemens
PHP1,621.68
Each
units
1 CO - 1 SENTRON 5TE - Enclosed - - - 20 A - - -
RS Stock No. 727-2372
Mfr. Part No.2CMA142422R1000
BrandABB
PHP7,946.86
Each
units
NO - 6P - - - - - 50A Yes 25 A - Cable -
New
RS Stock No. 204-1574
Mfr. Part No.P3-63/SE3
BrandEaton
PHP13,867.59
Each
units
3 NO Fused 3 ON-OFF Switch P3 - Enclosed - 80A - 4 kA - - -
RS Stock No. 726-4731
Mfr. Part No.103GNL
BrandEaton
PHP52,176.73
Each
units
- - 3P + N - - - - SB3, SB4, SD5, SO - - 100 A 3 Tunnel -
RS Stock No. 608-8006
Mfr. Part No.GS1JD3
PHP26,069.30
Each
units
- - 3P - - - - 22 x 58 mm - Yes 100 A ac, 100 A dc 3 Screw DIN Rail
RS Stock No. 762-2613
Mfr. Part No.1SCA115209R1001
BrandABB
PHP16,710.03
Each
units
- - 4P - - - - 000 80A Yes 63 A 3 - DIN Rail
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