Non-Fused Switch Disconnectors

Non-fused switch disconnectors are a safety device designed to power down or isolate a part of a circuit while it is being serviced or maintained. Unlike fused switch disconnectors, they do not use a fuse to break the circuit, instead using either a rotary or knife-blade disconnect. Rotary switches break the circuit by rotation of a lever, while knife-blade switches use a hinge to lift a lever off its slot.

What are non-fused switch disconnectors used for?

Non-fused switch disconnectors are used to isolate circuit breakers, transmission lines and transformers as part of their maintenance process. They are a safety measure and are not intended for use as a regular part of the circuit.

Types of non-fused switch disconnectors

Non-fused switch disconnectors vary in the method of disconnecting that they use, whether rotary or knife-blade. Beyond that, they have differing power, voltage and switch ratings, as well as different maximum current capabilities, which will determine which non-fused switch disconnector you choose.


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Description Price Number of Poles Maximum Current Model Number Range Mounting Type Series Normal State Configuration Power Rating IP Rating Accepts Padlocks Voltage Rating Auxiliary Contacts Available Electrical Phase Switch Rating
RS庫存編號 280-8222
製造零件編號28909
HK$1,281.28
單位
4 100 A - - DIN Rail - - 55 kW IP40 Yes 250 V dc, 690 V ac - 3 154 kA
RS庫存編號 280-8339
製造零件編號28929
HK$1,933.36
單位
4 160 A - - DIN Rail - - 110 kW IP40 Yes 250 V dc, 690 V ac - 3 154 kA
RS庫存編號 280-8238
製造零件編號28911
HK$1,540.24
單位
4 125 A - - DIN Rail - - 75 kW IP40 Yes 250 V dc, 690 V ac - 3 154 kA
RS庫存編號 280-8317
製造零件編號28925
HK$1,349.92
單位
4 100 A - - DIN Rail - - 55 kW IP40 Yes 250 V dc, 690 V ac - 3 154 kA
RS庫存編號 280-8171
製造零件編號28900
HK$706.19
單位
3 40 A - - DIN Rail - - 220 kW IP40 Yes 250 V dc, 500 V ac - 3 75 kA
RS庫存編號 280-8272
製造零件編號28917
HK$873.90
單位
4 40 A - - DIN Rail - - 220 kW IP40 Yes 250 V dc, 500 V ac - 3 75 kA
RS庫存編號 280-8216
製造零件編號28903
HK$846.56
單位
4 63 A - - DIN Rail - - 30 kW IP40 Yes 250 V dc, 500 V ac - 3 75 kA
RS庫存編號 280-8294
製造零件編號28919
HK$1,158.99
單位
4 63 A - - DIN Rail - - 30 kW IP40 Yes 250 V dc, 500 V ac - 3 75 kA
RS庫存編號 280-8200
製造零件編號28902
HK$1,243.41
單位
3 63 A - - DIN Rail - - 30 kW IP40 Yes 250 V dc, 500 V ac - 3 75 kA