KS20-FSB-F-CC4 -  Castell Safety International Ltd

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Product Specification
Contacts number 4 = standard contacts number
Product Castell Trapped Key Interlock
Product Type Powersafe Electrical Switch
Lock portion type FS (Also Available in Q style. Please see attached image 2)
Mounting F = Front of board mount, with enclosure (Also available in Panel Mount)
Isolation 20 amps (UL:20A/CSA:16A). Also available in 32 amps (UL&CSA:30A) & 63 amps (UL&CSA:65A)
Material Brass (Also Available in Stainless Steel)
Contacts Arrangement in Normal Position CC = NC arrangement (all contacts closed)
Symbols/Engraving FS up to 3 digits / Q up to 6 digits
Product Datasheet
1 KS20-FSB-F-CC4 
2 KS20-FSB-F-CC4 
Castell Safety International Ltd LEI Indias is an Authorised Distributor of Castell Safety International Ltd


A typical application of Castell Key Switch KS (model : KS20-FSB-F-CC4) is machine guarding. It is usually used in combination with an Castell Access Interlock such as the Castell Salus for part body access or an Access Interlock with an exchange key for full body access control.

The Castell Key Switch KS breaks the machine safety circuit, ensuring a machine is shut down when the key is turned and removed.

The key can then be taken to the Castell Salus Automatic Access Interlock to enable access to the machine.

The machine cannot be restarted until the door is closed, the bolt is trapped in the Access Interlock and the key is removed and taken to the KS Key Switch.

Tags: Castell Trapped Key Interlocks, Castell Safety Interlocks, Machine Guarding Interlock

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