KSD - Power Isolation

The KSD is a key driven switch disconnector for the isolation of currents. The standard KSD comes with 6 poles plus 2 auxiliary early break contacts. The KSD is manufactured from either brass or stainless steel making it suitable for use in standard or harsh corrosive environments. The unit is supplied suitable for mounting into an existing panel or for surface mounting within its own IP65 rated lockable mild steel enclosure.


The KSD is designed to operate as part of an integrated safety system, controlling access to hazardous areas.
Typical machinery using the KSD range are motor driven, high risk applications where complete isolation of the power supply is required before access is granted.

The removal of the key in the KSD changes the condition of the electrical supply to the machine to a safe condition. This key can be removed and used to unlock the door via AIE Access Interlock.

The guard can only be opened when the electrical supply has been switched into a safe condition. The machine cannot be restarted until the door is closed and the key is removed and taken to the KSD Switch Disconnector.

  Type 1   2 3   4   5 6   7 8   9  
Part Number KSD   -     -   -     -     -    
Example KSD 32 - FS B - F - CC 6 - C/O 2 - TBA

1 Isolation 32 A (UL& CSA:30 A), standard (63 A and 125 A available on request)
2 Lock portion type FS /Q
3 Material B = Brass / S = Stainless steel
4 Mounting P = Panel mount (back of board)
F = Front of board mount, with enclosure
5 Main contacts arrangement in normal position CC = N/C arrangement (all contacts closed, standard)
6 Number of main contacts 6, standard
7 Auxiliary contacts arrangement in normal position C/O = 1 N/O / 1 N/C, standard
8 Number of auxiliary contacts 2, standard
9 Lock portion symbol FS up to 3 characters / Q up to 6 characters