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. 518-6698
Mfr. Part No.3LD2164-0TB51
BrandSiemens
HK$536.07
Each
units
3 25A - - - - - 9.5kW IP65 - 690V ac - 3 640A
RS Stock No. 518-6783
Mfr. Part No.3LD2103-0TK53
BrandSiemens
HK$234.86
Each
units
3 25A - - Panel Mount - - 9.5kW IP65 Yes 690V ac - 3 -
RS Stock No. 518-6856
Mfr. Part No.3LD2203-0TK53
BrandSiemens
HK$317.39
Each
units
3 32A - - Panel Mount - - 11.5kW IP65 Yes 690V ac - 3 -
RS Stock No. 489-6726
Mfr. Part No.5TE8111
BrandSiemens
HK$134.53
Each
units
1 20A - - - - NO - - - 230V ac Yes 1 10kA
RS Stock No. 518-6733
Mfr. Part No.3LD2064-0TB53
BrandSiemens
HK$493.10
Each
units
3 16A - - - - - 7.5kW IP65 Yes 690V ac - 3 -
RS Stock No. 518-6705
Mfr. Part No.3LD2103-0TK51
BrandSiemens
HK$381.90
Each
units
3 25A - - Panel Mount - - 9.5kW IP65 Yes 690V ac - 3 640A
RS Stock No. 518-6755
Mfr. Part No.3LD2064-1GP51
BrandSiemens
HK$619.87
Each
units
3 16A - - - - NO/NC 7.5kW IP65 Yes 690V ac Yes 3 340A
RS Stock No. 196-3553
Mfr. Part No.3LD21641TC53
BrandSiemens
HK$767.25
Each
units
4 25A - Sentron - 3LD - 9.5kW IP65 - 400V - - -
RS Stock No. 518-6777
Mfr. Part No.3LD2050-0TK11
BrandSiemens
HK$378.31
Each
units
3 16A - - Panel Mount - - 7.5kW IP65 Yes 690V ac - 3 340A
New
RS Stock No. 210-1609
Mfr. Part No.3VA1110-1AA46-0AA0
BrandSiemens
HK$3,478.05
Each
units
4 100A - SENTRON - 3VA1 - - IP40 - - - - -
RS Stock No. 196-3554
Mfr. Part No.3LD22641TC53
BrandSiemens
HK$894.89
Each
units
4 32A - Sentron - 3LD - 11.5kW IP65 - 400V - - -
New
RS Stock No. 210-3430
Mfr. Part No.5TL1291-1
BrandSiemens
HK$1,090.14
Each
units
2 100A 5TL SENTRON - 5TL - - - - - - - -
New
RS Stock No. 210-3431
Mfr. Part No.5TL1332-0
BrandSiemens
HK$529.63
Each
units
3 32A 5TL SENTRON - 5TL - - - - - - - -
RS Stock No. 203-1973
Mfr. Part No.3LD2103-1TL53
BrandSiemens
HK$468.39
Each
units
- - - - - - - - - - - - - -
RS Stock No. 755-2889
Mfr. Part No.3RV1938-1A
BrandSiemens
HK$730.22
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 210-3443
Mfr. Part No.5TL1632-0
BrandSiemens
HK$669.65
Each
units
3 32A 5TL SENTRON - 5TL - - - - - - - -
RS Stock No. 196-3555
Mfr. Part No.3LD23051TL13
BrandSiemens
HK$4,350.89
Each
units
4 160A - Sentron - 3LD - 75kW IP65 - 400V - - -
RS Stock No. 151-1234
Mfr. Part No.5TL1691-1
BrandSiemens
HK$2,148.59
Each
units
3 100A - - - 5TL1 3NO - - - 440V - - 0.3kA
RS Stock No. 518-6862
Mfr. Part No.3LD2222-0TK11
BrandSiemens
HK$402.86
Each
units
3 32A - - Panel Mount - - 11.5kW IP65 Yes 690V ac - 3 -
RS Stock No. 518-6884
Mfr. Part No.3LD2122-0TK13
BrandSiemens
HK$328.96
Each
units
3 25A - - Panel Mount - - 9.5kW IP65 Yes 690V ac - 3 -