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Castell KS20-FSS-P-C/O4 User Manual

Castell KS20-FSS-P-C/O4
6 pages
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While every effort has been made to ensure the accuracy of the information provided, no liability can be taken for any errors or omission.
Castell Safety International Limited reserves the right to alter specications and introduce improvements without prior notice.
www.castell.com
1 of 6
U-KS-001-E Issue 2
KS
Powersafe Electrical Switch
User Manual - Original Language Version
The KS is a key driven electrical switch designed for machine
control circuits. This type of isolator should be used for short
term, off load isolation. The KS is manufactured from either
brass or stainless steel making it ideal for use in normal and
harsh corrosive environments where the lock is subject to heavy
use. The unit is able to be mounted into an existing panel or
for surface mounting within its own polycarbonate IP65 rated
enclosure.
Operation
KS20-FSS-P-C/O4
The Castell KS powersafe electrical key switch is used for machine isolation in order to protect the hazardous area from
access while power is on.
1. While the power is on and a machine is running, the key is trapped in the KS key switch.
2. By turning and removing the key out of the switch, the contacts condition in the KS changes, switching the
power off.
3. The key now can be taken to open the door lock and gain acces to the machine area.
The KS is available for different switching loads as KS20, KS32 or KS63 (20, 32 or 63 amps power isolation respectivly). Please
refer to drawing on page 6 for more details.
The KS comes with 4 contacts as standard with contacts arrangements as 2NO/2NC, 4NC, but auxiliary set of contacts are
available on request.
The KS is available as a back of panel mount version or as a front of panel mount with an enclosure. Please refer to drawing on
page 6 for more details.
1
2
3
Key is trapped, while
power is on.
Key is free, power is off.
KS20 powersafe electrical switch, back on panel mount
Turn and remove key to switch
the power off by changing the
contacts arrangement.
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Castell KS20-FSS-P-C/O4 Specifications

General IconGeneral
BrandCastell
ModelKS20-FSS-P-C/O4
CategorySwitch
LanguageEnglish

Summary

Operation

KS20 Powersafe Electrical Switch Operation

Details the back-on-panel mount operation of the KS20 powersafe electrical switch for machine isolation.

Usage

Key Switch Purpose and Safety

Clarifies the KS key switch is for safety systems, not security purposes, and notes no hazardous substances are used.

Installation

Mounting and Wiring Requirements

Covers mounting procedures for front/back units and wiring connections, including earthing.

Important Installation Notes

Highlights essential installation aspects like anti-tamper fasteners and qualified personnel.

Maintenance

Routine Checks and Lubrication

Outlines periodic visual checks and specific lubrication advice using dry powder graphite.

Defect Handling and Support

Provides guidance on handling detected defects and contacting the support department.

Application

Machine Guarding Integration

Explains the KS switch's role in machine guarding, often with access interlocks for safety.

EC-Declaration

Manufacturer Declaration of Compliance

States compliance with essential health and safety requirements for the components.

Drawing

KS20 FOB Dimensions

Illustrates the physical dimensions for the KS20 Front of Board (enclosure) mounting.

KS20 BOB Dimensions

Illustrates the physical dimensions for the KS20 Back of Board mounting.

Wiring Diagram

Key Free Switch Off Configuration

Shows the wiring diagram for the switch state when the key is free and the switch is off.

Key Free 2 NO/2NC Configuration

Illustrates the wiring for a 2 Normally Open/2 Normally Closed contact arrangement.

Accessories

Flip Cap Accessory

Details the Flip Cap accessory and its corresponding part number.

Contact Information

Global Contact Details

Provides contact information for Castell Safety International in the UK, Germany, USA, and China.

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