Tapeswitch Corporation - Multiple Key Bolt Interlock from Castell

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KL - Multiple Key Bolt Interlock

Description

The Multiple key bolt interlock is a multi-key operated mechanical bolt interlock suitable for the control of electrical switchgear. The standard unit comes with a 16mm diameter bolt of variable length, that is used to control the rotation or movement of operating handles or toggles of electrical switchgear. Many suppliers of switchgear equipment have mounting kits available for Castell interlocks. The lock is manufactured in brass or stainless steel making it ideally suited to use in harsh or corrosive environments.

Operation

The bolt movement is directly controlled by the rotation of the keys. The bolt length can be varied to suit the application but the travel of the bolt from extended to retracted is always 19mm. The bolt length should be specified on ordering by quoting the 'L' dimension, this being the length of the bolt protruding from the end face with the key in the trapped position and the bolt retracted.
Key Exchange: The Primary Key is trapped, the Secondary Key is free and the bolt is extended. Insertsecondary key and rotate, this enables rotation and removal of the primary key which retracts the bolt. The secondary key is now trapped in the lock. Double Key: The Primary and Secondary Key are free and the bolt is extended. Insertion and rotation of both keys will retract the bolt.

Typical System

The KL is designed to operate as part of an integrated safety system, controlling the operation of HV/LV switchgear. A typical example is shown below.

System Description

The electrical and pneumatic supplies to the machine are switched on and the access doors to the hazardous area are locked closed. The initial key is trapped in the AV pneumatic switch. To enter the area, the pneumatic supply is turned to the 'off' position and the key released, locking the supply off. The electrical supply is then turned off and the initial key inserted into the KL, which extends the bolt and allows the removal of the secondary key. The pneumatic and electrical supplies are now locked in the off position. This key is then inserted into the 'X Key Exchange Box' to release a further two keys which are used to open the 'AI' access locks on the doors. Whilst these keys are out of the 'X box', the electrical supply key cannot be removed, ensuring that the power cannot be switched on whilst the access doors are open.

Features

• Robust construction suitable for heavy duty or harsh environments.
• Suitable for fitting to a wide range of standard electrical switchgear.
• Exchange key or double key condition.
• Bolt projection to suit your requirements.

Lock Portion Options


Up to 3 symbols	Up to 6 symbols ( Q is non masterable)

Mounting Options

The L Dimension is the bolt protrusion from the end face of the KL lock with the key
in the trapped position. Standard L dimensions are 0, 6.35, 12.7, 19.05 and 25.4mm.
Bolt travel is 19.05mm from the key trapped to key free position.

Order Information

Part #	Description
0202	KL - Multiple Key Bolt Interlock

For More Information pleaese call 800-234-8273 or email us at sales@tapeswitch.com