Non-Fused Switch Disconnectors

Non-fused switch disconnectors are a safety device designed to power down a circuit to allow for servicing and maintenance by cutting the power supply to isolated parts of the circuit. While a fused switch disconnector will use fuses to break the circuit, a non-fused version will instead use a rotary switch or knife-blade disconnect, meaning these switch disconnectors are easy to reset without the need for replacement fuses. A rotary switch disconnect will break the circuit by rotating a lever, while a knife blade disconnect will use a hinge to lift a lever off a particular slot within the device.

What are switch disconnectors used for?

Primarily used as an isolator switch or safety switch, disconnectors are an electrical safety device and would not be used as regular switching component. They can be used to manually disconnect power from circuit breakers and transformers as part of a regular maintenance routine simply by turning the handle to the correct position. Commonly used in industrial automation and control settings.

Types of non-fused switch disconnectors

Whether using a rotary or knife blade method of disconnecting, non-fused switch disconnectors are available in a variety of settings to suit the requirements including the number of poles, maximum current, voltage rating, terminal and mounting types.


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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.OT63F3 1SCA105332R1001
BrandABB
£34.32
Each
Units
3 63A - - - - - 22kW IP20 - 750V ac - 3 1kA
RS Stock No. 686-7256
Mfr. Part No.OT16F3 1SCA104811R1001
BrandABB
£18.65
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 686-7275
Mfr. Part No.OT40F4N2 1SCA104932R1001
BrandABB
£29.08
Each
Units
4 40A - - - - - 11kW IP20 - 750V ac - 3 0.5kA
RS Stock No. 686-7266
Mfr. Part No.OT40F3 1SCA104902R1001
BrandABB
£23.80
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 686-7272
Mfr. Part No.OT63F4N2 1SCA105365R1001
BrandABB
£42.12
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 686-7269
Mfr. Part No.OT25F3 1SCA104857R1001
BrandABB
£20.97
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 686-7281
Mfr. Part No.OT80F3 1SCA105798R1001
BrandABB
£36.31
Each
Units
3 80A - - - - - 37kW IP20 - 750V ac - 3 1kA
RS Stock No. 282-0834
Mfr. Part No.S47K5N-A S47K5N
BrandABB
£43.69
Each
Units
4 20A - - - - - 7.5kW IP65 - - - 3 -
RS Stock No. 686-7262
Mfr. Part No.OT25F4N2 1SCA104886R1001
BrandABB
£25.85
Each
Units
4 25A - - - - - 9kW IP20 - 750V ac - 3 0.5kA
RS Stock No. 727-1486
Mfr. Part No.2CMA142435R1000 KSF225DP
BrandABB
£105.70
Each
Units
2 25A - - - - - 7.5kW IP65 - 400V ac - 1 690V ac
RS Stock No. 686-7284
Mfr. Part No.OT80F4N2 1SCA105413R1001
BrandABB
£47.68
Each
Units
4 80A - - - - - 37kW IP20 - 750V ac - 3 80A
RS Stock No. 686-7294
Mfr. Part No.OT125F4N2 1SCA105051R1001
BrandABB
£108.93
Each
Units
4 125A - - - - - 45kW IP20 - 750V ac - 3 2.5kA
RS Stock No. 686-7250
Mfr. Part No.OT16F4N2 1SCA104829R1001
BrandABB
£24.32
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 282-0840
Mfr. Part No.S415KN-A S415KN
BrandABB
£53.07
Each
Units
4 40A - - - - - 15kW IP65 - - - 3 -
RS Stock No. 686-7288
Mfr. Part No.OT100F3 1SCA105004R1001
BrandABB
£62.36
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 775-4108
Mfr. Part No.OT63F4C 1SCA105369R1001
BrandABB
£113.47
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 686-7290
Mfr. Part No.OT125F3 1SCA105033R1001
BrandABB
£87.80
Each
Units
3 125A - - - - - 45kW IP20 - 750V ac - 3 2.5kA
RS Stock No. 331-6493
Mfr. Part No.S37K5N-A S37K5N
BrandABB
£36.09
Each
Units
3 25A - - - - - 9kW IP65 - - - 3 -
RS Stock No. 762-2660
Mfr. Part No.OT160EV12P 1SCA120529R1001
BrandABB
£148.69
Each
Units
3 200A - - - - - 144kW IP65 Yes - - 3 12kV
RS Stock No. 686-7297
Mfr. Part No.OT100F4N2 1SCA105018R1001
BrandABB
£78.08
Each
Units
4 100A - - - - - 37kW IP20 - 750V ac - 3 2.5kA