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. 686-7256
Mfr. Part No.1SCA104811R1001
BrandABB
€20.33
Each
units
3 - - - DIN Rail - - 7.5 kW IP20 - 750 V ac - - -
RS Stock No. 686-7269
Mfr. Part No.1SCA104857R1001
BrandABB
€22.86
Each
units
3 - - - DIN Rail - - 9 kW IP20 - 750 V ac - - -
RS Stock No. 841-2634
Mfr. Part No.OTDC16F2
BrandABB
€51.52
Each
units
2 16 A - - DIN Rail - 2NO+2NO - IP20 - 660 V dc - - -
RS Stock No. 686-7275
Mfr. Part No.1SCA104932R1001
BrandABB
€31.73
Each
units
4 40 A - - DIN Rail - - 11 kW IP20 - 750 V ac - 3 0.5 kA
RS Stock No. 686-7281
Mfr. Part No.1SCA105798R1001
BrandABB
€39.63
Each
units
3 80 A - - DIN Rail - - 37 kW IP20 - 750 V ac - 3 1 kA
RS Stock No. 686-7272
Mfr. Part No.1SCA105365R1001
BrandABB
€45.94
Each
units
4 - - - DIN Rail - - 22 kW IP20 - 750 V ac - - -
RS Stock No. 922-0878
Mfr. Part No.ONE20M2Y
BrandABB
€18.60
Each
units
2 20 A - - Panel Mount ONE20 - - - - 240 V - - -
RS Stock No. 686-7278
Mfr. Part No.1SCA105332R1001
BrandABB
€37.43
Each
units
3 63 A - - DIN Rail - - 22 kW IP20 - 750 V ac - 3 1 kA
RS Stock No. 727-1486
Mfr. Part No.2CMA142435R1000
BrandABB
€113.90
Each
units
2 25 A - - Enclosed - - 7.5 kW IP65 - 400 V ac - 1 690 V ac
RS Stock No. 686-7310
Mfr. Part No.1SCA104838R1001
BrandABB
€25.46
Each
units
3 16 A - - Panel Mount - - 7.5 kW IP20 - 750 V ac - 3 0.5 kA
RS Stock No. 500-1008
Mfr. Part No.1SCA022399R6670 - OTP25A3M
BrandABB
€105.18
Each
units
3 23 A - - - - 2NO/2NC 15 kW IP65 - 690 V ac Yes 3 13 A
RS Stock No. 841-2653
Mfr. Part No.OTDC32F3
BrandABB
€97.59
Each
units
3 32 A - - DIN Rail - 3NO+3NO - IP20 - 1 kV dc - - -
RS Stock No. 686-7262
Mfr. Part No.1SCA104886R1001
BrandABB
€28.22
Each
units
4 25 A - - DIN Rail - - 9 kW IP20 - 750 V ac - 3 0.5 kA
RS Stock No. 686-7250
Mfr. Part No.1SCA104829R1001
BrandABB
€26.56
Each
units
4 - - - DIN Rail - - 7.5 kW IP20 - 750 V ac - - -
RS Stock No. 686-7288
Mfr. Part No.1SCA105004R1001
BrandABB
€68.02
Each
units
3 - - - DIN Rail - - 37 kW IP20 - 750 V ac - - -
RS Stock No. 686-7284
Mfr. Part No.1SCA105413R1001
BrandABB
€52.04
Each
units
4 80 A - - DIN Rail - - 37 kW IP20 - 750 V ac - 3 80 A
RS Stock No. 775-4094
Mfr. Part No.OT25F4C
BrandABB
€85.65
Each
units
4 25 A - - DIN Rail - 4NO - - - - Yes 3 -
RS Stock No. 686-7341
Mfr. Part No.1SCA105023R1001
BrandABB
€90.64
Each
units
3 100 A - - Panel Mount - - 37 kW IP20 - 750 V ac - 3 2.5 kA
RS Stock No. 686-7354
Mfr. Part No.1SCA105060R1001
BrandABB
€93.39
Each
units
3 125 A - - Panel Mount - - 45 kW IP20 - 750 V ac - 3 2.5 kA
RS Stock No. 686-7339
Mfr. Part No.1SCA105431R1001
BrandABB
€56.51
Each
units
3 - - - Panel Mount - - 37 kW IP20 - 750 V ac - - -