The CL Basic Interlock Unit are normally used to interlock electrical switchgear. Interfacing with the switch operating mechanism in such a way that the interlock key can be removed when the switch is in the desired position (usually off). This can be achieved either directly using the lock spindle, or indirectly using a cam or lever affixed to the spindle which should be fitted securely in such a manner as to prevent unauthorised tampering or interference. Most switchgear manufacturers can offer specific advice on the application of interlocks to their equipment & can provide any special parts necessary to complete an installation.
A panel mounted key switch suitable for isolation or switching current. The S unit may be used to isolate power to machinery. The standard sequence of operation is: Key trapped - Power on, Key free - Power off.
Direct drive operation - positively opens
contacts
as standard
available as standard
request
An enclosure mounted key switch suitable for isolating or switching current.
The SE may be used to isolate power to machinery. The standard sequence of operation is: Key trapped - Power on, Key free - Power off.
Direct drive operation - positively opens
contacts
20A, 32A and 63A switches available as
standard
4NO or 2NO/2NC contact arrangements
available as standard
UL and CSA switches available upon
request
Enclosure sealed to IP66
Metal enclosure sealed to IP40 available
upon request
A solenoid controlled key switch suitable for panel mounting. An alternative enclosure version is available for surface mounting.
The device is used where the key(s) need(s) to remain trapped until an electronic signal has been received. The standard sequence of operation is: De-energise solenoid, Key trapped - Power on, Energise solenoid, Key free - Power off.
Solenoid monitoring contacts as standard
Solenoids available in 24VDC &110VAC
20A switches available as standard
4NO or 2NO/2NC contact arrangements
available as standard
Accommodates up to 7 keys trapped by
a single solenoid
Enclosure versions available for surface
mounting
A robust, modular mechanical bolt interlock that is used to interface with power breakers, valves, earth switches etc. It is used where hazards need to be indirectly interlocked. BM is unsuitable for use as an access lock. The standard sequence of operation is: Key Free - Bolt Shot. This product is also available in full stainless steel, BMS. No product handing issues
A robust, multiple modular mechanical bolt interlock that is used to interface with power breakers, valves, earth switches etc. It is used where hazards need to be indirectly interlocked.
Available with up to 10 modules BM is unsuitable for use as an access lock. The standard sequence of operation is: Primary Key Free – Secondary Key Trapped - Bolt Shot. This product is also available in full stainless steel, BMS.
modules elsewhere
BM1-S - Single Deadlock Switch
A robust single key deadlock with a 16mm dia bolt. This device is fitted with a limit switch to provide electrical indication of the bolt position. This product is unsuitable for use as an access lock. The standard sequence of operation is: Key free - Bolt shot.
A modular, mechanical key exchange unit that is used to exchange one or more keys for a number of other keys. This device forms the link between isolation devices and access locks. Multiple isolation/access XM modules and keys are possible.
operation
surplus modules elsewhere.
A robust, modular access interlock for use on all types of doors. The stainless steel head provides rotational adjustment of 360° at 90° increments with +/-5° fine adjustment.
adjustment
modules elsewhere
A robust, multiple modular access interlock suitable for use on all types of doors. Sold as a single or multiple door interlock, it is available with up to 10 CL / ML lock modules. A choice of 4 actuators are available dependent upon your application requirements.
Supplied as standard.
Ideal for most guard doors.
Compact (fits within DM body's space
envelope)
Suitable for use where secondary action
is required to open / close the guard.
Detent holds actuator in place when door
is open.
Vertical adjustment : +/- 6mm.
Rotational adjustment of bracket to suit all
mounting orientation.
Ideal for small radius hinged doors.
Can be bolted through from the front, top or
bottom.
Horizontal adjustment: +/- 7.5mm.
Vertical adjustment: +/- 3.75mm.
Rotational adjustment: any angle in 360°.
Adjustment ideal for guards subject to
misalignment through wear.
Ideal for doors where the final location
can vary (e.g. sealed doors).
Can be used on small radius doors.
Suitable for situations where the door is
likely to be slammed.
Should you wish to go to the Fortress web page www.fortressinterlocks.com
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