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1.1 Product Description
The SL30DBL is a motor driven low voltage electric lock designed to secure commercial and residential swing-
through (180°) doors. The lock has been designed to address the two biggest issues in concealed electric
locking today;
1. The ability to ‘pull’ a door into alignment even if the door has not closed in a central position.
2. The ability to release when requested even if there is excessive load on the door.
The design of the SL30DBL is unique as it has two motors which independently operate two bolt pins. The bolt
pins operate on a cam action which enables each bolt pin to pull a door into place. In practice as the door
closes it may come to rest in a position that is not fully closed. The SL30DBL senses when the door is within
8mm (5/16 inch) of being fully closed in either direction and activates the bolt pin. This is an effective 16mm
(10/16 inch) alignment window. The bolt pin then rotates out and pulls the door from its resting position to
the closed and secured position.
With the door secured and locked the SL30DBL can be given an unlock signal and it will instantly unlock. If
the door is loaded (pre-load) when the unlock signal is given the SL30DBL will still unlock, even with loads
in excess of 100kg on the door from either side. Critically the ability of the SL30DBL to instantly release with
excessive pre-load on the door even occurs in the event of a power failure if the lock is configured as fail safe.
Additional features of the SL30DBL are;
• Multi-voltage input (12 - 24VDC)
• Very low current consumption
• Door position and bolt position monitors
• High physical strength
• Fail-safe / Fail-secure on-site conversion with the re-positioning of a single switch
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