Safe access
Castell Safety International have designed a single-key access safety switch which is suitable for use on both hinged and sliding doors. The Hercules 4 can be used to switch off a machine via its control circuitry and initialize an alert signal to sounders and visual beacons. The switch is sealed to IP65 and provides one normally open (n/o) and two normally closed (n/c) contacts, allowing it to be incorporated into cross-monitored safety systems.
The interlock is available in either a light-duty version intended for aluminium guarding, or a more durable stainless steel variety which is particularly suited to use in harsh or corrosive environments.
Under normal operating conditions the key sits in the lock while the sidebolt is trapped. Removing the key from the Hercules 4 simultaneously isolates the electrical supply and allows the sidebolt to be removed.
The operator retains the key to avoid being accidentally locked inside the perimeter guarding while gaining access to the relevant machine.
Castell have also developed the Gatesafe emergency exit device. Fitted to door frames and capable of operating in conjunction with all existing Castell access locks, the Gatesafe provides a quick method of escape for any personnel accidentally left inside a machine’s perimeter guarding.
