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. 686-7297
Mfr. Part No.1SCA105018R1001
BrandABB
MYR510.00
Each
units
4 100A - - - - - 37kW IP20 - 750V ac - 3 2.5kA
RS Stock No. 330-7685
Mfr. Part No.207147 & T0-2-1/I1/SVB
BrandEaton
MYR199.03
Each
units
3 20A - - - T0-1 NO 6.5kW IP65 Yes 415V ac Yes 3 320A
RS Stock No. 279-6157
Mfr. Part No.VCF1
MYR1,024.73
Each
units
3 32A - TeSys Panel Mount VARIO - 15kW - Yes 690V ac - 3 8kV
RS Stock No. 518-7304
Mfr. Part No.3LD2022-1TL13
BrandSiemens
MYR228.48
Each
units
3 + N 16A - - Panel Mount - NO/NC 7.5kW IP65 Yes 690V ac - 3 -
RS Stock No. 775-4098
Mfr. Part No.1SCA104934R1001
BrandABB
MYR454.35
Each
units
- - - - - - - - - - - - - -
RS Stock No. 466-132
BrandRS PRO
MYR517.92
Each
units
- - - - - - - - - - - - - -
RS Stock No. 686-7278
Mfr. Part No.1SCA105332R1001
BrandABB
MYR197.78
Each
units
3 63A - - - - - 22kW IP20 - 750V ac - 3 1kA
RS Stock No. 686-7329
Mfr. Part No.1SCA104940R1001
BrandABB
MYR191.29
Each
units
3 - - - Panel Mount - - 11 kW IP20 - 750 V ac - - -
RS Stock No. 818-441
Mfr. Part No.031607 & P3-63/EA/SVB
BrandEaton
MYR487.23
Each
units
3 63A - - Panel Mount P3-63 NO 37kW IP65 Yes 440V ac Yes 3 1260A
RS Stock No. 282-0840
Mfr. Part No.S415KN-A
BrandABB
MYR235.95
Each
units
4 40A - - - - - 15kW IP65 - - - 3 -
RS Stock No. 282-1708
Mfr. Part No.KG80T204/GBA008*KL
MYR894.74
Each
units
4 80A - - - - NO 30kW IP65 Yes 690V ac Yes 3 -
RS Stock No. 433-7621
Mfr. Part No.VCFN12GE
MYR176.33
Each
units
3 10A - TeSys Panel Mount Mini- VARIO - 4kW IP55 Yes 690V ac - 3 8kV
RS Stock No. 810-0868
Mfr. Part No.SDDR403EB
MYR771.80
Each
units
3 40A - - - - NO 15kW IP66 - 440V Yes 3 600A
RS Stock No. 279-6135
Mfr. Part No.VCF01
MYR164.29
Each
units
3 20A - TeSys Panel Mount VARIO - 11kW - Yes 690V ac - 3 8kV
RS Stock No. 377-745
Mfr. Part No.70011617 & T0-4-8213/I1H
BrandEaton
MYR310.54
Each
units
4 20A - - Surface Mount T0-4 4NO/4NC 7.5kW IP65 Yes 240 V dc, 690V ac - 3 6000V ac
RS Stock No. 311-5600
Mfr. Part No.KG20AT203/GBA011FT2
MYR152.75
Each
units
3 25A - - Panel Mount - - 7.5kW IP65 - 690V ac - 3 -
RS Stock No. 686-7317
Mfr. Part No.1SCA104884R1001
BrandABB
MYR190.55
Each
units
3 25A - - Panel Mount - - 9kW IP20 - 750V ac - 3 0.5kA
RS Stock No. 466-273
BrandRS PRO
MYR132.34
Each
units
3 25 A - - DIN Rail - - 11 kW IP65 Yes 750 V - 3 6 kV
RS Stock No. 790-7447
Mfr. Part No.A9S60232
MYR102.81
Each
units
2 32A - Acti 9 - iSW 2NO - IP40 - 415V ac Yes - 4kV
RS Stock No. 813-9507
Mfr. Part No.MD3304X
MYR647.60
Each
units
1 30A - - Panel Mount - - - - Yes 600V - 3 -