SDC 1490/2490 Series Extra Narrow Spacesaver Concealed Mortise Bolt Lock

SDC 1490/2490 Series Extra Narrow Spacesaver Concealed Mortise Bolt Lock

SDC 1490/2490
Part #:
$376.74 - $446.16

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Product Overview

The Spacesaver, first designed and patented by SDC, is a fundamental innovation in electric locking technology for access control applications. The stainless steel bolt projects at right angles to the lock mechanism, allowing installation of Spacesaver locks, by means of a simple cutout, in virtually any standard 1.5" frame, or in most door lock stiles. With the entire lock concealed, esthetic acceptability is complete, security is greater and installation in old or new construction is fast, easy and economical. Greater security is provided by the 0.625" diameter stainless steel bolt. The bolt rotates freely, making attempts to tamper or cut extremely difficult. The automatic relock switch keeps the bolt retracted while the door is open. The door depresses the ball switch assembly on closure, causing the bolt to project automatically, locking the door. In addition, the ball switch assembly is bidirectional, permitting the locks to be used on swinging and sliding doors. The auto relock assembly is field adjustable to compensate for wide door gap.

Warranty Information

5 Years Limited


  • Action
    Door unlocks automatically when power is interrupted by the access control, power failure or signal from a fire life safety system
  • Bolt
    5/8"Diameter, Stainless Steel
  • Bolt Throw Length
    1" (25.5mm)
  • Country of Origin
  • Electrical Rating
    0.9 A @ 12 VDC, 0.45 A @ 24 VDC Continuous Duty
  • Faceplate Depth
  • Faceplate Height
  • Faceplate Width
  • Frame Application
    Metal or Wood
  • Hardware Finish
    Satin Aluminum, Clear Anodized 628/US28
  • Includes
    Auto Relock Switch
  • Mounting Location
    Frame Header, Side Jamb or Door Lock Stile
  • Operating Voltage
  • Power
  • Strike Size
    1-1/2"W x 1/8"D x 4"H
  • Unit of Measure
  • Use With
    1-1/2" (38.1mm) frame or door stile