EL148F electric bolt lock for compatible frameless-door access control installations. Operating voltage: DC 12 V; listed current: 150 mA. Fail-safe operation (power off to unlock) with selectable 0 / 3 / 6 second delay. Bolt diameter: 12.5 mm; extension: 15 mm. Aluminum-alloy body, dimensions 148 × 43 × 39 mm; listed weight approximately 0.5 kg. Signal-feedback and time-delay functions are available. Contact THETOP to confirm door thickness and mounting configuration.