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.

...
Read more Read less

Filters

Viewing 1 - 20 of 181 products
Results per page
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. 513-5741
Mfr. Part No.3841 3039
BrandSocomec
HK$6,049.38
Each
units
- 3P - - - - 10A - 400 A 3 - - - -
RS Stock No. 513-5729
Mfr. Part No.3841 3021
BrandSocomec
HK$2,687.46
Each
units
- 3P - - - B1-B2 200A - 200 A 3 - - - -
RS Stock No. 608-7564
Mfr. Part No.GK1ET
HK$850.00
Each
units
- 4P - - - 14 x 51 mm - Yes 50 A - Wire Lead DIN Rail -50°C +70°C
RS Stock No. 247-4065
Mfr. Part No.DTL400KIT
HK$2,290.00
Each
units
- 3P - - - NH02 - - 400 A 3 - Surface Mount - -
RS Stock No. 419-555
Mfr. Part No.5500S
HK$114.43
Each
units
- DP - Sentry - - - - 100 A - Tunnel - -5°C +40°C
RS Stock No. 676-3221
Mfr. Part No.GS2N3
HK$4,605.88
Each
units
- 3P - - - 1 - Yes 200 A dc, 250 A ac 3 - DIN rail -20°C +70°C
RS Stock No. 710-0573
Mfr. Part No.1SCA115259R1001
BrandABB
HK$742.94
Each
units
- 3P - - - A2, A3 - Yes 32 A 3 Screw DIN Rail - -
RS Stock No. 513-2073
Mfr. Part No.3641 3000
BrandSocomec
HK$464.40
Each
units
- 3P - - - A1 - Yes 20 A 3 Shroud - - -
RS Stock No. 513-5713
Mfr. Part No.3841 3016
BrandSocomec
HK$2,417.19
Each
units
- 3P - - - - 10A - 160 A 3 - - - -
RS Stock No. 381-5726
Mfr. Part No.5560S
HK$98.35
Each
units
- DP - Sentry - - - - 63 A - Tunnel - -5°C +40°C
RS Stock No. 512-9459
Mfr. Part No.OS100GB12P
BrandABB
HK$1,569.65
Each
units
- 3P - - - BS - Yes 100 A 3 Conduit DIN Rail - -
RS Stock No. 513-5707
Mfr. Part No.3841 3010
BrandSocomec
HK$1,409.08
Each
units
- 3P - - - - 10A - 100 A 3 - - - -
RS Stock No. 608-7968
Mfr. Part No.GS1FD3
HK$1,490.00
Each
units
- 3P - - - 14 x 51 mm - Yes 40 A dc, 50 A ac 3 Screw DIN Rail - -
RS Stock No. 707-6152
Mfr. Part No.2CSM204753R1801
BrandABB
HK$200.42
Each
units
- 3P - - - 10 x 38 mm - - 32 A 3 - - - -
RS Stock No. 762-2446
Mfr. Part No.OS20TPN-B
BrandABB
HK$1,480.00
Each
units
- 3P + N - - - A1 - - 20 A 3 - Wall Mount - -
RS Stock No. 726-4917
Mfr. Part No.60KXTNC2F
BrandEaton
HK$3,900.00
Each
units
- 3P + N - - - SB4 - - 63 A 3 - - - -
RS Stock No. 781-3884
Mfr. Part No.3841 6010
BrandSocomec
HK$1,995.83
Each
units
- 4P - - - A4 - Yes 100 A - Shroud DIN Rail - -
RS Stock No. 781-3897
Mfr. Part No.38416021
BrandSocomec
HK$3,846.69
Each
units
- 4P - - - B1, B2 - Yes 200 A - Shroud DIN Rail - -
RS Stock No. 499-7201
Mfr. Part No.T0-2-8900/E + EZ-P1
BrandEaton
HK$196.97
Each
units
- 4P - - - GG/gL 20A - 20 A - - Panel Mount - -
RS Stock No. 518-7130
Mfr. Part No.3LD2250-0TK13
BrandSiemens
HK$236.00
Each
units
- - - - - - 10A - 32 A - - Panel Mount - -
Related Products
The SCS ESD grounding cord is a 15ft ...
Description:
The SCS ESD grounding cord is a 15ft 20AWG PVC wire. It has moulded-in male snap fastener with integral 1Mohm resistor on one end and solderless terminal on other. It comes in black nylon cover with black polyester insert and ...
Our own brand of RS Pro ESD wrist-straps ...
Description:
Our own brand of RS Pro ESD wrist-straps feature premium grade fabric band with an elastic ratio of 1:2.5” to 1:3. The outer surface of the wristband is non-conductive and the inside surface of the strap is conductive lined with ...
Our RS Pro range of hard-wearing ESD grounding ...
Description:
Our RS Pro range of hard-wearing ESD grounding straps have been designed to ensure efficient static bleeding, to ensure a reliable method of static dissipation. Predominantly used within the electronics industry, but still suited to enthusiasts working at a bench. ...
The RS Pro anti-static wrist strap is a ...
Description:
The RS Pro anti-static wrist strap is a premium metal wrist band (stainless steel) that is adjustable and features a coiled cord. Its metal interior is great for grounding. This wrist strap will fit all wrists as its circumference adjusts ...