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. 686-7278
Mfr. Part No.1SCA105332R1001
BrandABB
MYR212.40
Each
units
3 63 A - - DIN Rail - - 22 kW IP20 - 750 V ac - 3 1 kA
RS Stock No. 466-132
BrandRS PRO
MYR434.33
Each
units
4 125 A - - DIN Rail - - 55 kW IP65 Yes 690 V ac - 3 30 kA
RS Stock No. 686-7297
Mfr. Part No.1SCA105018R1001
BrandABB
MYR423.75
Each
units
4 100 A - - DIN Rail - - 37 kW IP20 - 750 V ac - 3 2.5 kA
RS Stock No. 433-7592
Mfr. Part No.VBD0
MYR208.97
Each
units
3 25 A - TeSys Panel Mount VARIO - 15 kW IP20, IP65 Yes 690 V ac - 3 8 kV
RS Stock No. 775-4098
Mfr. Part No.1SCA104934R1001
BrandABB
MYR419.60
Each
units
4 40 A - - DIN Rail - 4NO - - - - Yes 3 -
RS Stock No. 279-6157
Mfr. Part No.VCF1
MYR237.34
Each
units
3 32 A - TeSys Panel Mount VARIO - 15 kW IP20, IP65 Yes 690 V ac - 3 8 kV
RS Stock No. 518-7304
Mfr. Part No.3LD2022-1TL13
BrandSiemens
MYR150.57
Each
units
3 + N 16 A - - Panel Mount - NO/NC 7.5 kW IP65 Yes 690 V ac - 3 6000 V
RS Stock No. 122-1289
Mfr. Part No.FME55E
BrandWEG
MYR82.12
Each
units
- - - - - - - - IP55 - - - - -
RS Stock No. 810-0868
Mfr. Part No.SDDR403EB
MYR633.14
Each
units
3 40 A - - Enclosed - NO 15 kW IP66 - 440 V Yes 3 600 A
RS Stock No. 810-0791
Mfr. Part No.SD00253B
MYR166.81
Each
units
3 25 A - - DIN Rail - - 9 kW, 11 kW IP65 Yes 415 V, 690 V Yes - 0.5 kA
RS Stock No. 311-5600
Mfr. Part No.KG20AT203/GBA011FT2
MYR131.34
Each
units
3 25 A - - Panel Mount - - 7.5 kW IP65 - 690 V ac - 3 -
RS Stock No. 279-6135
Mfr. Part No.VCF01
MYR146.27
Each
units
3 20 A - TeSys Panel Mount VARIO - 11 kW IP20, IP65 Yes 690 V ac - 3 8 kV
RS Stock No. 818-441
Mfr. Part No.P3-63/EA/SVB
BrandEaton
MYR345.40
Each
units
3 63 A - - Panel Mount - NO 37 kW IP65 Yes 440 V ac Yes 3 1260 A
RS Stock No. 433-7621
Mfr. Part No.VCFN12GE
MYR160.01
Each
units
3 10 A - TeSys Panel Mount Mini- VARIO - 4 kW IP55 Yes 690 V ac - 3 8 kV
RS Stock No. 762-2418
Mfr. Part No.OT63FP-A
BrandABB
MYR1,624.62
Each
units
4 80 A - - Enclosed - - - IP65 Yes 415 V ac - 3 -
RS Stock No. 282-1708
Mfr. Part No.KG80T204/GBA008*KL
MYR595.26
Each
units
4 80 A - - - - NO 30 kW IP65 Yes 690 V ac Yes 3 -
RS Stock No. 819-927
Mfr. Part No.100AXTN2
BrandEaton
MYR2,176.12
Each
units
3 + N 100 A - - - - - - - Yes 250 V dc, 415 V ac - 3 3750 A
RS Stock No. 790-7447
Mfr. Part No.A9S60232
MYR74.22
Each
units
2 32 A - Acti 9 DIN Rail iSW 2NO - IP40 - 415 V ac Yes - 4 kV
RS Stock No. 686-7329
Mfr. Part No.1SCA104940R1001
BrandABB
MYR203.44
Each
units
3 - - - Panel Mount - - 11 kW IP20 - 750 V ac - - -
RS Stock No. 686-7317
Mfr. Part No.1SCA104884R1001
BrandABB
MYR179.27
Each
units
3 25 A - - Panel Mount - - 9 kW IP20 - 750 V ac - 3 0.5 kA
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