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. 841-2672
Mfr. Part No.1SCA125129R1001
BrandABB
PHP4,200.66
Each
units
2 16 A - - Panel Mount - 2NO+2NO - - - 660 V dc - - -
RS Stock No. 841-2634
Mfr. Part No.OTDC16F2
BrandABB
PHP3,214.54
Each
units
2 16 A - - DIN Rail - 2NO+2NO - IP20 - 660 V dc - - -
RS Stock No. 841-2638
Mfr. Part No.OTDC25F2
BrandABB
PHP3,720.49
Each
units
2 25 A - - DIN Rail - 2NO+2NO - IP20 - 660 V dc - - -
RS Stock No. 762-2405
Mfr. Part No.OT20TPN-B
BrandABB
PHP8,558.42
Each
units
3 + N 32 A - - Enclosed - - - IP65 Yes 415 V ac - 3 -
RS Stock No. 686-7281
Mfr. Part No.1SCA105798R1001
BrandABB
PHP2,469.98
Each
units
3 80 A - - DIN Rail - - 37 kW IP20 - 750 V ac - 3 1 kA
RS Stock No. 841-2688
Mfr. Part No.1SCA125153R1001
BrandABB
PHP7,642.40
Each
units
3 16 A - - Panel Mount - 3NO+3NO - - - 1 kV dc - - -
RS Stock No. 686-7256
Mfr. Part No.1SCA104811R1001
BrandABB
PHP1,392.12
Each
units
3 - - - DIN Rail - - 7.5 kW IP20 - 750 V ac - - -
RS Stock No. 686-7288
Mfr. Part No.1SCA105004R1001
BrandABB
PHP4,029.94
Each
units
3 - - - DIN Rail - - 37 kW IP20 - 750 V ac - - -
RS Stock No. 922-0884
Mfr. Part No.ONE20M3Y
BrandABB
PHP1,455.00
Each
units
3 20 A - - Panel Mount ONE20 - - - - 415 V - - -
RS Stock No. 686-7339
Mfr. Part No.1SCA105431R1001
BrandABB
PHP4,474.03
Each
units
3 - - - Panel Mount - - 37 kW IP20 - 750 V ac - - -
RS Stock No. 841-2690
Mfr. Part No.1SCA125155R1001
BrandABB
PHP9,777.37
Each
units
3 32 A - - Panel Mount - 3NO+3NO - - - 1 kV dc - - -
RS Stock No. 922-0887
Mfr. Part No.ONE20M3W
BrandABB
PHP1,455.00
Each
units
3 20 A - - Panel Mount ONE20 - - - - 415 V - - -
RS Stock No. 922-0880
Mfr. Part No.ONE20M3G
BrandABB
PHP1,218.14
Each
units
3 20 A - - Panel Mount ONE20 - - - - 415 V - - -
RS Stock No. 762-2660
Mfr. Part No.OT160EV12P
BrandABB
PHP10,122.19
Each
units
3 200 A - - Enclosed - - 144 kW IP65 Yes 1 kV - 3 12 kV
RS Stock No. 841-2647
Mfr. Part No.1SCA121456R1001
BrandABB
PHP4,339.23
Each
units
2 32 A - - DIN Rail - 2NO+2NO - IP20 - 660 V dc - - -
RS Stock No. 841-2640
Mfr. Part No.OTDC16F3
BrandABB
PHP5,413.16
Each
units
3 16 A - - DIN Rail - 3NO+3NO - IP20 - 1 kV dc - - -
RS Stock No. 500-1020
Mfr. Part No.1SCA022399R6750 - OTP16A3M
BrandABB
PHP4,400.46
Each
units
3 23 A - - - - 2NO/2NC 7.5 kW IP65 - 690 V ac Yes 3 6.5 A
RS Stock No. 775-4114
Mfr. Part No.1SCA105054R1001
BrandABB
PHP20,208.92
Each
units
4 125 A - - DIN Rail - 4NO - - - - Yes 3 -
RS Stock No. 841-2681
Mfr. Part No.1SCA125130R1001
BrandABB
PHP5,165.02
Each
units
2 25 A - - Panel Mount - 2NO+2NO - - - 660 V dc - - -
RS Stock No. 686-7250
Mfr. Part No.1SCA104829R1001
BrandABB
PHP1,699.12
Each
units
4 - - - DIN Rail - - 7.5 kW IP20 - 750 V ac - - -