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 Stock No. 810-0896
Mfr. Part No.EXZ1SDR0204
kr 3 823,81
Each
Units
4 20 A - - Enclosed - - - IP65 - 690 V Yes - -
RS Stock No. 810-0858
Mfr. Part No.SDDR253EB
kr 819,98
Each
Units
3 25 A - - Enclosed - NO 11 kW IP66 - 440 V Yes 3 500 A
RS Stock No. 136-9415
Mfr. Part No.SDDG253N
kr 767,36
Each
Units
3 + N 25 A - i-switch Enclosed Mount SDDG NO 11 kW IP66 Yes 380 / 440 V ac Yes 3 25 A
RS Stock No. 714-1811
Mfr. Part No.SDMG206EB
kr 1 870,89
Each
Units
6 + 2EB Aux 20 A - - Enclosed - 6NO 7.5 kW IP65 Yes 690 V Yes 3 6 kV
RS Stock No. 810-0849
Mfr. Part No.SDF01253NB
kr 2 880,13
Each
Units
3 + N 125 A - - Panel Mount - - - IP65 - 415 V Yes - 1000 A
RS Stock No. 810-0827
Mfr. Part No.SD01004B
kr 1 211,77
Each
Units
4 100 A - - Panel Mount - - 37 kW IP65 - 415 V Yes - 2.5 kA
RS Stock No. 810-0852
Mfr. Part No.SDDR253N
kr 805,75
Each
Units
3 + N 25 A - - Enclosed - NO 11 kW IP66 - 440 V Yes 3 500 A
RS Stock No. 136-9416
Mfr. Part No.SDDG323N
kr 785,94
Each
Units
3 + N 32 A - i-switch Enclosed Mount SDDG NO 15 kW IP66 Yes 380 / 440 V ac Yes 3 32 A
RS Stock No. 714-1814
Mfr. Part No.SDMG403
kr 1 625,11
Each
Units
3 40 A - - Enclosed - 3NO 15 kW IP65 Yes 690 V Yes 3 6 kV
RS Stock No. 714-1763
Mfr. Part No.SCODP203
kr 1 004,27
Each
Units
3 20 A - - Enclosed - 3NO/3NC 7.5 kW IP65 Yes 690 V Yes 3 6 kV
RS Stock No. 810-0830
Mfr. Part No.SDF01003NB
kr 2 425,06
Each
Units
3 + N 100 A - - Panel Mount - - - IP65 - 415 V Yes - 800 A
RS Stock No. 136-9418
Mfr. Part No.SDDG633N
kr 1 663,70
Each
Units
3 + N 63 A - i-switch Enclosed Mount SDDG NO 25 kW IP65 Yes 380 / 440 V ac Yes 3 63 A
RS Stock No. 810-0808
Mfr. Part No.SD00403B
kr 377,24
Each
Units
3 40 A - - DIN Rail - - 15 kW IP65 Yes 415 V Yes - 0.6 kA
RS Stock No. 714-1818
Mfr. Part No.SDMG406EB
kr 2 058,16
Each
Units
6 + 2EB Aux 40 A - - Enclosed - 6NO 18.5 kW IP65 Yes 690 V Yes 3 6 kV
RS Stock No. 714-1779
Mfr. Part No.SCODP404
kr 1 548,03
Each
Units
4 40 A - - - - 4NO/4NC 18.5 kW IP65 Yes 690 V Yes 3 6 kV
RS Stock No. 341-2119
Mfr. Part No.FSDDR0323
kr 2 821,52
Each
Units
3 32 A - - Enclosed - - 15 kW IP65 Yes 415 V ac Yes 3 50 kA
RS Stock No. 810-0757
Mfr. Part No.SDDG253EBZ22
kr 1 065,86
Each
Units
3 25 A - - Enclosed - - 11 kW - Yes 440 V Yes 3 500 A
RS Stock No. 810-0789
Mfr. Part No.SCODDG203
kr 1 104,04
Each
Units
3 20 A - - Enclosed - NO/NC 7.5 kW IP66 - 440 V - 3 250 A
RS Stock No. 714-1849
Mfr. Part No.SDS633N/RS
kr 2 416,30
Each
Units
3 + N 63 A - - Enclosed - 3NO 30 kW IP65 Yes 690 V Yes 3 6 kV
RS Stock No. 136-9414
Mfr. Part No.SDRC01256EB/RS
kr 6 782,43
Each
Units
6P + 2 EB 125 A - - Wall Mount SDRC - 63 kW IP65 Yes 690 V ac Yes 3 125 A