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. 518-6862
Mfr. Part No.3LD2222-0TK11
BrandSiemens
MYR232.71
Each
units
3 32A - - Panel Mount - - 11.5kW IP65 Yes 690V ac - 3 -
RS Stock No. 841-2638
Mfr. Part No.OTDC25F2
BrandABB
MYR339.58
Each
units
2 25A - - - - 2NO+2NO - IP20 - 660V dc - - -
RS Stock No. 241-3082
Mfr. Part No.KG32BT206/GBA080*SB2
MYR1,486.94
Each
units
6 32A - - - - NO 11kW IP65 Yes 690V ac Yes 3 -
RS Stock No. 136-9412
Mfr. Part No.SDSSR253EB
MYR1,174.44
Each
units
3P + 2EB 25A - i-switch - SDSSR NO 11kW IP66 Yes 380 / 440V ac Yes 3 25A
RS Stock No. 241-3010
Mfr. Part No.KG100T203/GBA060*SB3
MYR1,574.34
Each
units
3 100A - - - - NO 37kW IP65 Yes 690V ac Yes 3 -
RS Stock No. 103-8445
Mfr. Part No.091080 & P1-25/EA/SVB/HI11
BrandEaton
MYR261.18
Each
units
3 25A - - Panel Mount P1-25 3NO 13kW IP65 Yes 690V Yes 1, 3 190A
RS Stock No. 686-7269
Mfr. Part No.1SCA104857R1001
BrandABB
MYR123.71
Each
units
3 - - - DIN Rail - - 9 kW IP20 - 750 V ac - - -
RS Stock No. 309-1481
Mfr. Part No.P1-32/SS1/SVB
BrandEaton
MYR1,434.27
Each
units
3 32A - - - - - 15kW IP65 Yes 440V ac Yes 3 640A
RS Stock No. 518-6783
Mfr. Part No.3LD2103-0TK53
BrandSiemens
MYR149.05
Each
units
3 25A - - Panel Mount - - 9.5kW IP65 Yes 690V ac - 3 -
RS Stock No. 686-7357
Mfr. Part No.1SCA105066R1001
BrandABB
MYR665.10
Each
units
4 125A - - Panel Mount - - 45kW IP20 - 750V ac - 3 2.5kA
RS Stock No. 309-1510
Mfr. Part No.P3-100/SS2/SVB
BrandEaton
MYR1,758.55
Each
units
3 100A - - - - - 50kW IP65 Yes 440V ac Yes 3 2000A
RS Stock No. 150-146
Mfr. Part No.8345-B01A-U3M0-DB1B1B-5A-V
BrandETA
MYR473.86
Each
units
1 5 A - - Panel Mount - - - IP00, IP40 - 80 V dc, 480 V ac - - -
RS Stock No. 262-3778
Mfr. Part No.043619 & T0-2-1/V/SVB
BrandEaton
MYR185.09
Each
units
3 20A - - Panel Mount - NO 6.5kW IP65 Yes 440V ac Yes 3 320A
RS Stock No. 805-5588
Mfr. Part No.172874 & P1-32/M4/K1-PG
BrandEaton
MYR450.46
Each
units
3 32A - - Panel Mount - NO 18.5kW IP65 Yes 690V ac - - 250A
RS Stock No. 849-6610
Mfr. Part No.ISO100-2
BrandEuropa
MYR62.30
Each
units
2 100A - - - - - - IP20 - 230 → 400V ac - - 100A
RS Stock No. 196-3554
Mfr. Part No.3LD22641TC53
BrandSiemens
MYR516.92
Each
units
4 32A - Sentron - 3LD - 11.5kW IP65 - 400V - - -
RS Stock No. 257-9356
Mfr. Part No.053110 & T0-1-8200/EA/SVB
BrandEaton
MYR158.34
Each
units
1 20A - - Panel Mount - NO 6.5kW IP65 Yes 415V ac Yes 1 320A
RS Stock No. 849-6614
Mfr. Part No.ISO125-4
BrandEuropa
MYR141.08
Each
units
4 125A - - - - - - IP20 - 230 → 400V ac - - 125A
RS Stock No. 518-7360
Mfr. Part No.3LD2264-0TB51
BrandSiemens
MYR367.36
Each
units
3 32A - - - - - 11.5kW IP65 Yes 690V ac - 3 640A
RS Stock No. 539-3701
Mfr. Part No.4404.0007
BrandSchurter
MYR10.67
Each
units
1 5A - - - - - - - - 240 V ac, 32V dc - - -