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. 518-7023
Mfr. Part No.3LD2250-0TK11
BrandSiemens
$56.91
Each
units
3 32 A - - Panel Mount - - 11.5 kW IP65 Yes 690 V ac - 3 640 A
RS Stock No. 518-6711
Mfr. Part No.3LD2050-0TK13
BrandSiemens
$44.39
Each
units
3 16 A - - Panel Mount - - 7.5 kW IP65 Yes 690 V ac - 3 6000 V
RS Stock No. 518-7304
Mfr. Part No.3LD2022-1TL13
BrandSiemens
$80.41
Each
units
3 + N 16 A - - Panel Mount - NO/NC 7.5 kW IP65 Yes 690 V ac - 3 6000 V
RS Stock No. 518-7067
Mfr. Part No.3LD2050-1TL13
BrandSiemens
$56.73
Each
units
3 + N 16 A - - Panel Mount - - 7.5 kW IP65 Yes 690 V ac - 3 6000 V
RS Stock No. 518-6884
Mfr. Part No.3LD2122-0TK13
BrandSiemens
$44.39
Each
units
3 25 A - - Panel Mount - - 9.5 kW IP65 Yes 690 V ac - 3 6000 V
RS Stock No. 518-7427
Mfr. Part No.3LD2704-0TK53
BrandSiemens
$145.74
Each
units
3 100 A - - Panel Mount - - 37 kW IP65 Yes 690 V ac - 3 6000 V
RS Stock No. 518-7354
Mfr. Part No.3LD2504-0TK51
BrandSiemens
$164.14
Each
units
3 63 A - - Panel Mount - - 22 kW IP65 Yes 690 V ac - 3 1260 A
RS Stock No. 518-6676
Mfr. Part No.3LD2022-0TK13
BrandSiemens
$40.63
Each
units
3 16 A - - Panel Mount - NO/NC 7.5 kW IP65 Yes 690 V ac - 3 6000 V
RS Stock No. 518-6828
Mfr. Part No.3LD2150-0TK13
BrandSiemens
$131.15
Each
units
3 25 A - - Panel Mount - - 9.5 kW IP65 Yes 690 V ac - 3 6000 V
RS Stock No. 518-6799
Mfr. Part No.3LD2122-0TK11
BrandSiemens
$44.39
Each
units
3 25 A - - Panel Mount - - 9.5 kW IP65 Yes 690 V ac - 3 640 A
RS Stock No. 518-7376
Mfr. Part No.3LD2565-0TB51
BrandSiemens
$141.13
Each
units
3 63 A - - Enclosed - - 22 kW IP65 Yes 690 V ac - 3 1260 A
RS Stock No. 151-1230
Mfr. Part No.5TL1292-0
BrandSiemens
$193.13
Each
units
2 125 A - - DIN Rail 5TL1 2NO - - - 440 V - - 0.375 kA
RS Stock No. 518-6878
Mfr. Part No.3LD2222-0TK13
BrandSiemens
$53.72
Each
units
3 32 A - - Panel Mount - - 11.5 kW IP65 Yes 690 V ac - 3 6000 V
RS Stock No. 151-1231
Mfr. Part No.5TL1363-1
BrandSiemens
$93.94
Each
units
3 63 A - - DIN Rail 5TL1 3NO - - - 440 V - - 0.196 kA
RS Stock No. 151-1232
Mfr. Part No.5TL1392-0
BrandSiemens
$271.59
Each
units
3 125 A - - DIN Rail 5TL1 3NO - - - 440 V - - 0.375 kA
New
RS Stock No. 197-5370
Mfr. Part No.3UG4511-1AP20
BrandSiemens
$202.73
Each
units
- - - - - - - - - - - - - -
RS Stock No. 151-1233
Mfr. Part No.5TL1663-1
BrandSiemens
$117.82
Each
units
3 63 A - - DIN Rail 5TL1 3NO - - - 440 V - - 0.196 kA
RS Stock No. 518-7017
Mfr. Part No.3LD2203-0TK51
BrandSiemens
$55.79
Each
units
3 32 A - - Panel Mount - - 11.5 kW IP65 - 690 V ac - 3 640 A
RS Stock No. 518-6705
Mfr. Part No.3LD2103-0TK51
BrandSiemens
$49.95
Each
units
3 25 A - - Panel Mount - - 9.5 kW IP65 Yes 690 V ac - 3 640 A
RS Stock No. 151-1234
Mfr. Part No.5TL1691-1
BrandSiemens
$328.84
Each
units
3 100 A - - DIN Rail 5TL1 3NO - - - 440 V - - 0.3 kA