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. 900-1825
Mfr. Part No.KEM340UL Y/R
BrandAltech
MYR450.31
Each
units
4 40A - - Panel Mount KEM - - IP65 Yes 600V ac Yes 3 -
RS Stock No. 342-2295
Mfr. Part No.KG10BT203/GBA253 VE
MYR174.29
Each
units
3 20A - - - - - 5.5kW IP65 Yes 690V ac - 3 -
RS Stock No. 773-0654
Mfr. Part No.050738 & P1-25/V/SVB-SW
BrandEaton
MYR259.90
Each
units
3 25A - - - - 3NO 7.5kW IP65 Yes 690V ac - - -
New
RS Stock No. 209-6746
Mfr. Part No.3VA1110-1AA32-0AA0
BrandSiemens
MYR1,174.20
Each
units
3 100A 3VA1110-1AA32-0AA0 SENTRON - 3VA1 Sentron - 38W IP40 - - - - -
RS Stock No. 191-7533
Mfr. Part No.KG20T203/GBA024VE
MYR191.57
Each
units
3 25A - - - - - 7.5kW IP65 Yes 690V ac - 3 -
RS Stock No. 810-0870
Mfr. Part No.SDDR406EB
MYR986.49
Each
units
6 40A - - - - NO 18.5kW IP66 - 440V Yes 3 800A
RS Stock No. 111-7850
Mfr. Part No.GA125A
BrandLovato
MYR426.90
Each
units
3 125A - - - GA 3NO 45kW IP65 Yes 690V - 3 1000A
RS Stock No. 922-7251
Mfr. Part No.276283 & IS-100/2
BrandEaton
MYR131.01
Each
units
2 100A - - - IS 2NO - IP40 - 415V - 1 2kA
RS Stock No. 574-817
Mfr. Part No.8345-B22A-U3M0-DB1B1B-60A-V
BrandETA
MYR823.90
Each
units
2 60 A - - Panel Mount - - - IP00, IP40 - 80 V ac/dc - - -
RS Stock No. 176-6803
Mfr. Part No.2CSM204932R1801
BrandABB
MYR711.59
Each
units
2 125A - - - 2CSM - - - - 690V ac - - -
RS Stock No. 196-3557
Mfr. Part No.3LD25651TC53
BrandSiemens
MYR656.54
Each
units
4 63A - Sentron - 3LD - 22kW IP65 - 400V - - -
RS Stock No. 151-1221
Mfr. Part No.5TL1132-0
BrandSiemens
MYR129.12
Each
units
1 32A - - - 5TL1 NO - - - 250V - - 0.096kA
RS Stock No. 262-3778
Mfr. Part No.043619 & T0-2-1/V/SVB
BrandEaton
MYR166.58
Each
units
3 20A - - Panel Mount - NO 6.5kW IP65 Yes 440V ac Yes 3 320A
RS Stock No. 805-5590
Mfr. Part No.172779 & P1-32/M4/K1-PG/N
BrandEaton
MYR456.03
Each
units
3 + N 32A - - Panel Mount - NO 18.5kW IP65 Yes 690V ac - - 250A
RS Stock No. 841-2638
Mfr. Part No.OTDC25F2
BrandABB
MYR305.62
Each
units
2 25A - - - - 2NO+2NO - IP20 - 660V dc - - -
RS Stock No. 714-1802
Mfr. Part No.SDMG253
MYR660.06
Each
units
3 25A - - - - 3NO 15kW IP65 Yes 690V Yes 3 6kV
RS Stock No. 518-7067
Mfr. Part No.3LD2050-1TL13
BrandSiemens
MYR221.17
Each
units
3 + N 16A - - Panel Mount - - 7.5kW IP65 Yes 690V ac - 3 -
RS Stock No. 111-7842
Mfr. Part No.GA016A
BrandLovato
MYR80.98
Each
units
3 16A - - - GA 3NO 11kW IP65 Yes 690V - 3 320A
RS Stock No. 686-7294
Mfr. Part No.1SCA105051R1001
BrandABB
MYR609.27
Each
units
4 125A - - - - - 45kW IP20 - 750V ac - 3 2.5kA
RS Stock No. 257-3566
Mfr. Part No.VCF3GE
MYR600.33
Each
units
3 50A - TeSys Panel Mount VARIO - 22kW IP65 Yes 690V ac - 3 8kV