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. 173-7872
Mfr. Part No.4404.0006
BrandSchurter
$3.818
Each (In a Box of 100)
units
1 16 A - - - - - - - - 48 V dc, 240 V ac - - -
RS Stock No. 539-3795
Mfr. Part No.4404.0006
BrandSchurter
$2.96
Each
units
1 16 A - - - - - - - - 48 V dc, 240 V ac - - -
RS Stock No. 173-7867
Mfr. Part No.4404.0004
BrandSchurter
$3.651
Each (In a Box of 100)
units
1 10 A - - - - - - - - 48 V dc, 240 V ac - - -
RS Stock No. 539-3701
Mfr. Part No.4404.0007
BrandSchurter
$3.45
Each
units
1 5 A - - - - - - - - 32 V dc, 240 V ac - - -
RS Stock No. 173-7871
Mfr. Part No.4404.0010
BrandSchurter
$3.818
Each (In a Box of 100)
units
1 15 A - - - - - - - - 32 V dc, 240 V ac - - -
RS Stock No. 173-7866
Mfr. Part No.4404.0003
BrandSchurter
$3.651
Each (In a Box of 100)
units
1 8 A - - - - - - - - 32 V dc, 240 V ac - - -
RS Stock No. 173-7865
Mfr. Part No.4404.0001
BrandSchurter
$3.651
Each (In a Box of 100)
units
1 4 A - - - - - - - - 32 V dc, 240 V ac - - -
RS Stock No. 539-3694
Mfr. Part No.4404.0001
BrandSchurter
$3.51
Each
units
1 16 A - - - - - - - - 32 V dc, 240 V ac - - -
RS Stock No. 539-3773
Mfr. Part No.4404.0010
BrandSchurter
$3.87
Each
units
1 15 A - - - - - - - - 32 V dc, 240 V ac - - -
RS Stock No. 539-3739
Mfr. Part No.4404.0003
BrandSchurter
$5.05
Each
units
1 8 A - - - - - - - - 32 V dc, 240 V ac - - -
RS Stock No. 539-3751
Mfr. Part No.4404.0005
BrandSchurter
$6.62
Each
units
1 16 A - - - - - - - - 32 V dc, 240 V ac - - -
RS Stock No. 539-3745
Mfr. Part No.4404.0004
BrandSchurter
$4.50
Each
units
1 10 A - - - - - - - - 48 V dc, 240 V ac - - -