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
New
RS Stock No. 210-3431
Mfr. Part No.5TL1332-0
BrandSiemens
MYR252.74
Each
units
3 32A 5TL SENTRON - 5TL - - - - - - - -
RS Stock No. 282-1382
Mfr. Part No.KG80T203/GBA017VE
MYR361.76
Each
units
3 80A - - - - - 30kW IP65 Yes 690V ac - 3 -
RS Stock No. 279-6185
Mfr. Part No.VCF3
MYR340.76
Each
units
3 63A - TeSys Panel Mount VARIO - 30kW - Yes 690V ac - 3 8kV
RS Stock No. 805-5512
Mfr. Part No.172850 & DMM-125/3/I5/P-G
BrandEaton
MYR1,470.76
Each
units
3 125A - - - - - 59kW IP65 Yes 690V - 3 125A
RS Stock No. 686-7332
Mfr. Part No.1SCA105382R1001
BrandABB
MYR217.14
Each
units
3 63A - - Panel Mount - - 22kW IP20 - 750V ac - 3 1kA
RS Stock No. 381-3843
Mfr. Part No.KG41B T203/GBA282 VE
MYR212.99
Each
units
3 40A - - - - - 15kW IP65 Yes 690V ac Yes 3 -
RS Stock No. 151-1230
Mfr. Part No.5TL1292-0
BrandSiemens
MYR608.76
Each
units
2 125A - - - 5TL1 2NO - - - 440V - - 0.375kA
RS Stock No. 418-5789
Mfr. Part No.0 225 56
BrandLegrand
MYR1,552.61
Each
units
4 160A - - - - NO/NC - IP55 Yes 800V ac - 3 12kA
RS Stock No. 136-9413
Mfr. Part No.SDSSR253N
MYR1,179.70
Each
units
3 + N 25A - i-switch - SDSSR NO 11kW IP66 Yes 380 / 440V ac Yes 3 25A
RS Stock No. 810-0852
Mfr. Part No.SDDR253N
MYR386.31
Each
units
3 + N 25A - - - - NO 11kW IP66 - 440V Yes 3 500A
RS Stock No. 201-3481
Mfr. Part No.MSW 100 P3 H
BrandWEG
MYR819.12
Each
units
- - - - - - - - - - - - - -
RS Stock No. 828-5296
Mfr. Part No.KG100 T203/GBA270 *KL1V
MYR670.60
Each
units
3 100A - - - - NO 30 kW, 37kW IP66, IP67 Yes 690 V, 380 → 415V - 3 -
RS Stock No. 518-7398
Mfr. Part No.3LD2704-0TK51
BrandSiemens
MYR564.08
Each
units
3 100A - - Panel Mount - - 37kW IP65 Yes 690V ac - 3 2000A
RS Stock No. 311-5593
Mfr. Part No.KG20AT103/GBA010FT2
MYR116.52
Each
units
3 25A - - Panel Mount - - 7.5kW IP65 Yes 690V ac - 3 -
RS Stock No. 175-5088
Mfr. Part No.SD202/63
BrandABB
MYR214.79
Each
units
2 63A - Pro M Compact - SD202 2NO - - Yes 125 V dc, 440V ac Yes - -
RS Stock No. 151-1232
Mfr. Part No.5TL1392-0
BrandSiemens
MYR899.17
Each
units
3 125A - - - 5TL1 3NO - - - 440V - - 0.375kA
RS Stock No. 176-6806
Mfr. Part No.2CSM296532R1801
BrandABB
MYR817.61
Each
units
4 125A - - - 2CSM - - - - 690V ac - - -
RS Stock No. 714-1760
Mfr. Part No.SDP633/RS
MYR398.35
Each
units
3 63A - - - - 3NO 30kW IP65 Yes 690V Yes 3 6kV
RS Stock No. 176-9731
Mfr. Part No.207295 & P1-25/I2/SVB-SW/HI11
BrandEaton
MYR282.36
Each
units
3 25A - - Surface Mount - NO/NC 13kW IP65 Yes 690V ac Yes - 640A
RS Stock No. 192-0866
Mfr. Part No.1SCA022401R4590
BrandABB
MYR615.34
Each
units
4 40A OTP32B4M - - - 2NC, 2NO - IP65 Yes 750V Yes 4 -