| Home > Trapped Key Interlocks > Mechanical Bolt Interlocks > KS-20 - Powersafe Electrical Switch |
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| Description |
| The KS20 is a key driven 20amp electrical switch suitable for the isolation or switching of low (20amp maximum) current. This type of isolator should be used for short term, off load isolation and operated by suitably qualified personnel. The KS20 is manufactured from either brass or stainless steel making it suitable for use in standard or harsh corrosive environments where the lock is subject to heavy use. The unit is supplied suitable for mounting into an existing panel or for surface mounting within its own IP65 rated polycarbonate enclosure. |
| Operation |
| Under normal operating conditions the key is retained in the lock portion. Rotation and subsequent removal of the key will alter the condition of the contacts within the switch, this may be changing from all of the contacts closed to open or as a changeover i.e. 2 contacts from closed to open and 2 contacts from open to closed. The switch condition cannot be changed without the correctly coded key. |
| Typical System |
| The KS20 is designed to operate as part of an integrated safety system, controlling access to hazardous areas. A typical example of machine isolation and access control is shown below. |
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| System Description |
| The removal of the isolation key in the KS20, changes the condition of the electrical supply to the machine to a safe condition. This key is then used to unlock the interlock on the access door. The guard can only be opened when the electrical supply has been switched into a safe condition. |
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| Features |
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Key driven,force break 20amp 4 pole switch conforming to IEC947/3
Number of poles and contact arrangement to suit your requirement.
Suitable for panel mount or surface mount (IP65 Polycarbonate enclosure)
UL, CSA approved in accordance with BS and VDE.
Power isolation - 400mA - 20A / Motor isolation AC - 23A 7.5KW or AC3 5.5KW
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| Information |
| Part # |
Description |
| 0215 |
KS-20 - Powersafe Electrical Switch |
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