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. 686-7317
Mfr. Part No.1SCA104884R1001
BrandABB
MYR179.27
Each
units
3 25 A - - Panel Mount - - 9 kW IP20 - 750 V ac - 3 0.5 kA
RS Stock No. 377-745
Mfr. Part No.T0-4-8213/I1H
BrandEaton
MYR208.14
Each
units
4 10 A dc, 20 A ac - - Enclosed - 4NO/4NC 7.5 kW IP65 Yes 240 V dc, 690 V ac - 3 6000 V ac
RS Stock No. 686-7329
Mfr. Part No.1SCA104940R1001
BrandABB
MYR203.44
Each
units
3 - - - Panel Mount - - 11 kW IP20 - 750 V ac - - -
RS Stock No. 282-0840
Mfr. Part No.S415KN-A
BrandABB
MYR266.70
Each
units
4 40 A - - - - - 15 kW IP65 - - - 3 -
RS Stock No. 103-8440
Mfr. Part No.P1-25/EA/SVB/N
BrandEaton
MYR191.90
Each
units
3 + N 25 A - - Panel Mount P1-25 3NO 13 kW IP65 Yes 690 V - 1, 3 190 A
RS Stock No. 280-8193
Mfr. Part No.28901
MYR439.92
Each
units
4 40 A - - DIN Rail - - 220 kW IP40 Yes 250 V dc, 500 V ac - 3 75 kA
RS Stock No. 466-233
BrandRS PRO
MYR96.69
Each
units
4 25 A - - DIN Rail - - 11 kW IP65 Yes 690 V ac - 3 5 kA
RS Stock No. 773-0650
Mfr. Part No.T0-2-1/I1/SVB-SW
BrandEaton
MYR151.99
Each
units
3 10 A - - Enclosed - 3NO 4 kW IP65 Yes 690 V ac - - -
RS Stock No. 818-435
Mfr. Part No.P1-32/EA/SVB
BrandEaton
MYR242.57
Each
units
3 32 A - - Panel Mount - NO 15 kW IP65 Yes 440 V ac Yes 3 640 A
RS Stock No. 311-5638
Mfr. Part No.KG20AT303/GBA003VE2
MYR91.21
Each
units
3 25 A - - DIN Rail - - 7.5 kW - Yes 690 V ac - 3 -
RS Stock No. 790-7450
Mfr. Part No.A9S60332
MYR135.36
Each
units
3 32 A - Acti 9 DIN Rail iSW 3NO - IP40 - 415 V Yes - 4 kV
RS Stock No. 775-4108
Mfr. Part No.1SCA105369R1001
BrandABB
MYR563.74
Each
units
4 63 A - - DIN Rail - 4NO - - - - Yes 3 -
RS Stock No. 122-4445
Mfr. Part No.SDDR633
MYR792.24
Each
units
3 63 A - - - - NO 25 kW IP66 - 440 V Yes 3 1300 A
RS Stock No. 518-7281
Mfr. Part No.3LD2504-0TK53
BrandSiemens
MYR249.07
Each
units
3 63 A - - Panel Mount - - 22 kW IP65 Yes 690 V ac - 3 6000 V
RS Stock No. 773-8024
BrandRS PRO
MYR205.09
Each
units
4 32 A - - Panel Mount - - 18.5 kW IP54 Yes 690 V ac Yes 3 30 kA
RS Stock No. 330-8098
Mfr. Part No.T0-1-8200/I1/SVB
BrandEaton
MYR128.13
Each
units
1 10 A dc, 20 A ac - - Enclosed - - 7.5 kW IP65 Yes 240 V dc, 690 V ac - 1 6000 V ac
RS Stock No. 629-2031
Mfr. Part No.T0-4-15682/I1H/K-CI-K1/2(RS629-2031)
BrandEaton
MYR208.14
1 Box of 1
Box(es)
- 14 A - - Enclosed TO 6NO - IP65 No - - - -
RS Stock No. 466-154
BrandRS PRO
MYR188.75
Each
units
3 100 A - - DIN Rail - - 45 kW IP65 Yes 750 V - 3 6 kV
RS Stock No. 773-0632
Mfr. Part No.P1-25/I2H/SVB-SW
BrandEaton
MYR222.09
Each
units
3 25 A - - Enclosed - 3NO 11 kW IP65 Yes 690 V ac - - -
RS Stock No. 762-2449
Mfr. Part No.OT200TPN-B
BrandABB
MYR4,608.53
Each
units
3 + N 200 A - - Enclosed - - - IP65 Yes 415 V ac - 3 -
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