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. 629-2110
Mfr. Part No.70011634 & T0-3-8212/I1H
BrandEaton
MYR187.17
1 Box of 1
Box(es)
3 10 A dc, 20 A ac - - Enclosed - 3NO/3NC 18.5 kW IP65 - 240 V dc, 690 V ac - 3 6000 V ac
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. 828-5284
Mfr. Part No.KG80 T203/GBA270 *KL1V
MYR578.52
Each
units
3 80 A - - Enclosed - NO 22 kW, 30 kW IP66, IP67 Yes 690 V, 380 → 415 V - 3 -
RS Stock No. 151-1232
Mfr. Part No.5TL1392-0
BrandSiemens
MYR780.02
Each
units
3 125 A - - DIN Rail 5TL1 3NO - - - 440 V - - 0.375 kA
RS Stock No. 330-7887
Mfr. Part No.207078 & T0-1-8220/I1
BrandEaton
MYR149.36
Each
units
1 10 A dc, 20 A ac - - Enclosed - NO/NC 7.5 kW IP65 - 240 V dc, 690 V ac - 1 6000 V ac
New
RS Stock No. 203-1989
Mfr. Part No.3LD2254-1TL53
BrandSiemens
MYR266.43
Each
units
4 32 A 3LD2254-1TL53 SENTRON Built-In Unit Fixed-Mounted 3LD2254 - 11.5 kW IP65 - - - - -
RS Stock No. 187-8929
Mfr. Part No.GL0250C1
BrandLovato
MYR907.16
Each
units
3 250 A GL0250C1 - DIN Rail GL - 250 kW IP20 - 1 kV Yes - -
RS Stock No. 790-7466
Mfr. Part No.A9S65391
MYR373.54
Each
units
3 100 A - Acti 9 DIN Rail iSW 3NO - - - 415 V - - -
RS Stock No. 762-2414
Mfr. Part No.OT63TPN-A
BrandABB
MYR1,614.88
Each
units
3 + N 63 A - - Enclosed - - - IP65 Yes 415 V ac - 3 -
RS Stock No. 311-5593
Mfr. Part No.KG20AT103/GBA010FT2
MYR129.47
Each
units
3 25 A - - Panel Mount - - 7.5 kW IP65 Yes 690 V ac - 3 -
RS Stock No. 222-5992
Mfr. Part No.KG32BT206GBA010VE
MYR344.72
Each
units
6 32 A - - DIN Rail - - 11 kW IP65 Yes 690 V ac Yes 3 -
RS Stock No. 805-5617
Mfr. Part No.172827 & P3-100/M4/K2-PG
BrandEaton
MYR614.52
Each
units
3 100 A - - Panel Mount - NO 45 kW IP65 Yes 690 V ac - - 520 A
RS Stock No. 282-1506
Mfr. Part No.KG64BT204/GBA006VE
MYR364.20
Each
units
4 63 A - - - - - 22 kW IP65 Yes 690 V ac - 3 -
RS Stock No. 193-6023
Mfr. Part No.KG64BT206/GBA004*KL
MYR902.16
Each
units
6 63 A - - DIN Rail - - 22 kW IP65 Yes 690 V ac Yes 3 -
RS Stock No. 518-6783
Mfr. Part No.3LD2103-0TK53
BrandSiemens
MYR127.93
Each
units
3 25 A - - Panel Mount - - 9.5 kW IP65 Yes 690 V ac - 3 6000 V
RS Stock No. 282-1613
Mfr. Part No.KG100T204/GBA007E
MYR490.96
Each
units
4 100 A - - Panel Mount - - 37 kW IP65 Yes 690 V ac - 3 -
RS Stock No. 762-2427
Mfr. Part No.OT100TPN-B
BrandABB
MYR2,535.91
Each
units
3 + N 115 A - - Enclosed - - - IP65 Yes 415 V ac - 3 -
RS Stock No. 173-7866
Mfr. Part No.4404.0003
BrandSchurter
MYR10.828
Each (In a Box of 100)
units
1 8 A - - - - - - - - 32 V dc, 240 V ac - - -
RS Stock No. 110-4491
Mfr. Part No.182429 & T0-2-15679/I2H/MBS/SVB
BrandEaton
MYR227.55
Each
units
3 20 A - - Enclosed - NO 6 kW IP65 Yes 415 V Yes 3 -
RS Stock No. 518-6733
Mfr. Part No.3LD2064-0TB53
BrandSiemens
MYR191.30
Each
units
3 16 A - - Enclosed - - 7.5 kW IP65 Yes 690 V ac - 3 6000 V
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