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. 518-7348
Mfr. Part No.3LD2264-1GP53
BrandSiemens
MYR300.96
Each
units
3 32 A - - Enclosed - NO/NC 11.5 kW IP65 Yes 690 V ac Yes 3 6000 V
RS Stock No. 518-6840
Mfr. Part No.3LD2164-1GP53
BrandSiemens
MYR269.41
Each
units
3 25 A - - Enclosed - NO/NC 9.5 kW IP65 Yes 690 V ac Yes 3 6000 V
RS Stock No. 518-7304
Mfr. Part No.3LD2022-1TL13
BrandSiemens
MYR152.53
Each
units
3 + N 16 A - - Panel Mount - NO/NC 7.5 kW IP65 Yes 690 V ac - 3 6000 V
RS Stock No. 518-7281
Mfr. Part No.3LD2504-0TK53
BrandSiemens
MYR281.47
Each
units
3 63 A - - Panel Mount - - 22 kW IP65 Yes 690 V ac - 3 6000 V
RS Stock No. 518-6755
Mfr. Part No.3LD2064-1GP51
BrandSiemens
MYR242.98
Each
units
3 16 A - - Enclosed - NO/NC 7.5 kW IP65 Yes 690 V ac Yes 3 340 A
RS Stock No. 518-7449
Mfr. Part No.3LD2866-0TB53
BrandSiemens
MYR1,706.32
Each
units
3 125 A - - Enclosed - - 45 kW IP65 Yes 690 V ac - 3 6000 V
RS Stock No. 518-7506
Mfr. Part No.3LD2766-0TB51
BrandSiemens
MYR941.22
Each
units
3 100 A - - Enclosed - - 37 kW IP65 Yes 690 V ac - 3 2000 A
RS Stock No. 518-7023
Mfr. Part No.3LD2250-0TK11
BrandSiemens
MYR166.95
Each
units
3 32 A - - Panel Mount - - 11.5 kW IP65 Yes 690 V ac - 3 640 A
RS Stock No. 489-6502
Mfr. Part No.5TE1310
BrandSiemens
MYR841.19
Each
units
3 100 A - - DIN Rail - 3NO 44 kW IP20 - 690 V ac Yes 3 -
RS Stock No. 755-2889
Mfr. Part No.3RV1938-1A
BrandSiemens
MYR430.24
Each
units
- - - Sirius Classic - - - - - - - - - -
RS Stock No. 489-6732
Mfr. Part No.5TE8113
BrandSiemens
MYR194.32
Each
units
3 20 A - - DIN Rail - 3NO - - - 400 V ac Yes 3 10 kA
RS Stock No. 518-6727
Mfr. Part No.3LD2064-0TB51
BrandSiemens
MYR193.31
Each
units
3 16 A - - Enclosed - - 7.5 kW IP65 - 690 V ac - 3 340 A
RS Stock No. 518-6777
Mfr. Part No.3LD2050-0TK11
BrandSiemens
MYR130.22
Each
units
3 16 A - - Panel Mount - - 7.5 kW IP65 Yes 690 V ac - 3 340 A
RS Stock No. 518-7354
Mfr. Part No.3LD2504-0TK51
BrandSiemens
MYR281.38
Each
units
3 63 A - - Panel Mount - - 22 kW IP65 Yes 690 V ac - 3 1260 A
RS Stock No. 518-7499
Mfr. Part No.3LD2766-0TB53
BrandSiemens
MYR941.22
Each
units
3 100 A - - Enclosed - - 37 kW IP65 Yes 690 V ac - 3 6000 V
RS Stock No. 518-6856
Mfr. Part No.3LD2203-0TK53
BrandSiemens
MYR151.97
Each
units
3 32 A - - Panel Mount - - 11.5 kW IP65 Yes 690 V ac - 3 6000 V
RS Stock No. 518-7382
Mfr. Part No.3LD2565-0TB53
BrandSiemens
MYR413.99
Each
units
3 63 A - - Enclosed - - 22 kW IP65 Yes 690 V ac - 3 6000 V
RS Stock No. 518-6884
Mfr. Part No.3LD2122-0TK13
BrandSiemens
MYR130.22
Each
units
3 25 A - - Panel Mount - - 9.5 kW IP65 Yes 690 V ac - 3 6000 V
RS Stock No. 518-6828
Mfr. Part No.3LD2150-0TK13
BrandSiemens
MYR144.64
Each
units
3 25 A - - Panel Mount - - 9.5 kW IP65 Yes 690 V ac - 3 6000 V
RS Stock No. 151-1224
Mfr. Part No.5TL1191-1
BrandSiemens
MYR270.69
Each
units
1 100 A - - DIN Rail 5TL1 NO - - - 250 V - - 0.3 kA