Simplex - EE1021B - EE1011 - Cylindrical Knob Lock - Combination or Key Override Entry - Combination Exit Only - 2¾" Backset - 1/2" Throw Latch - Satin Chrome 626/US26D Finish

The Dormakaba Simplex EE1021B/EE1011‑26D‑41 is a heavy-duty mechanical push‑button cylindrical knob lock from the trusted Simplex EE1000 series. It provides keyless entry using a single-code combination, with the added option for key override using a standard SFIC cylinder (not included). This non‑handed lock is suitable for both entry and egress, making it ideal for commercial, institutional, and industrial applications where secure, battery-free access control is needed.

 

Technical Specifications
Function	Combination or Key Override Entry, Combination Exit Only
Series	Simplex EE1000
Trim	Cylindrical Knob
Handing	Factory-handed (left); field reversible
Backset	2-3/4" (70 mm)
Latch	1/2" (13 mm) throw
Cylinder Prep	SFIC-prepped, less core
Door Thickness Compatibility	1-3/4" to 2-1/4" (44–57 mm)
Minimum Stile Width	5" (127 mm)
Strike Options	Standard and ASA strike plates included
Construction	Cast metal housing & knobs; vandal-resistant push buttons
Finish	Satin Chrome (US26D / 626)
Fire Rating	UL/ULC 3-hour fire rating on "A" labeled doors
Weight	Approximately 10.25 lb (4.6 kg)
Operating Temperature	Weather-resistant
User Code Capacity	Single code (1–5 digits)