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 Mechanical Fuse Size Fuse Current Rating Auxiliary Contacts Available Maximum Current Electrical Phase Terminal Type Mounting Type Minimum Operating Temperature
RS庫存編號 676-3227
製造零件編號GS2L3
TWD13,176.00
單位
- - 3P - - - - - Yes 125 A dc, 160 A ac 3 - DIN rail -20°C
RS庫存編號 175-3656
製造零件編號A9N15650
TWD686.00
單位
2P - 2 Acti 9 STI Double Throw 8.5 x 31.5 mm 10A - - - Screw DIN Rail -20°C
RS庫存編號 708-1778
製造零件編號GS2NB3
TWD17,726.00
單位
- - 3P - - - B1, B2, B3 - Yes 200 A dc, 250 A ac 3 Wire Lead DIN Rail -20°C
RS庫存編號 813-9572
製造零件編號GS2JU3N
TWD18,257.00
單位
- - 3 - - - J 200kA Yes 100 A 3 Cable DIN Rail -
RS庫存編號 813-9575
製造零件編號GS2MU3N
TWD23,113.00
單位
- - 3 - - - J 200kA Yes 200 A 3 Cable DIN Rail -
RS庫存編號 419-031
製造零件編號KNB50SF4
TWD8,061.00
單位
- - 3P + N - Harmony K - NF 14 x 51 - - 50 A 3 Cable Clamp - -
RS庫存編號 608-7558
製造零件編號GK1ES
TWD4,902.00
單位
- - 3P - - - 14 x 51 mm - Yes 50 A - Wire Lead DIN Rail -50°C
RS庫存編號 708-1756
製造零件編號GS2JB3
TWD6,430.00
單位
- - 3P - - - A4 - Yes 100 A ac, 100 A dc 3 Wire Lead DIN Rail -20°C
RS庫存編號 708-1772
製造零件編號GS2NB4
TWD21,449.00
單位
- - 4P - - - B1, B2, B3 - Yes 200 A dc, 250 A ac 3 Wire Lead DIN Rail -20°C
RS庫存編號 608-7968
製造零件編號GS1FD3
TWD10,343.00
單位
- - 3P - - - 14 x 51 mm - Yes 40 A dc, 50 A ac 3 Screw DIN Rail -
RS庫存編號 608-7564
製造零件編號GK1ET
TWD6,565.00
單位
- - 4P - - - 14 x 51 mm - Yes 50 A - Wire Lead DIN Rail -50°C
RS庫存編號 708-1744
製造零件編號GS2GB3
TWD4,587.00
單位
- - 3P - - - A2, A3 - Yes 40 A dc, 63 A ac 3 Wire Lead DIN Rail -20°C
RS庫存編號 608-7930
製造零件編號GS1DD3
TWD7,105.00
單位
- - 3P - - - 10 x 38 mm - - 20 A dc, 32 A ac 3 Screw DIN Rail -
RS庫存編號 676-3221
製造零件編號GS2N3
TWD21,269.00
單位
- - 3P - - - 1 - Yes 200 A dc, 250 A ac 3 - DIN rail -20°C
RS庫存編號 181-2586
製造零件編號A9N15646
TWD726.00
單位
- - - Spacial - - - - - - - - Direct Mount -
RS庫存編號 813-9563
製造零件編號GS2GU3N
TWD16,773.00
單位
- - 3 - - - J 100kA Yes 60 A 3 Cable DIN Rail -
RS庫存編號 608-7946
製造零件編號GS1DD4
TWD8,814.00
單位
- - 4P - - - 10 x 38 mm - - 20 A dc, 32 A ac 3 Screw DIN Rail -
RS庫存編號 608-8006
製造零件編號GS1JD3
TWD15,064.00
單位
- - 3P - - - 22 x 58 mm - Yes 100 A ac, 100 A dc 3 Screw DIN Rail -
RS庫存編號 608-7592
製造零件編號GK1EY
TWD5,576.00
單位
- - 4P - - - 14 x 51 mm - Yes 50 A 1 Wire Lead DIN Rail -50°C
RS庫存編號 608-7570
製造零件編號GK1EW
TWD5,486.00
單位
- - 3P - - - 14 x 51 mm - Yes 50 A 1 Wire Lead DIN Rail -50°C