STI Delay Switches

Overview

The Sti SS2321LD-EN is an indoor-only turn-to-reset stopper station labeled "LOCKDOWN" that provides a guarded push-button switch with a pneumatic adjustable timer. The unit features a polycarbonate housing with a stainless steel backplate, a curved shield to reduce accidental activation, and ADA-compliant push buttons (excluding the "3" key). It accepts interchangeable gold-plated N.O./N.C. contact blocks, offers a 2–60 second timed delay without external power, and exceeds 1,000,000 timer operations. Pneumatic adjustable timer, 2–60 seconds (±15%), no external power required; timer life over 1,000,000 operations. Tough polycarbonate housing with stainless steel backplate and curved protective shield; ADA-compliant push buttons (excludes '3' key). Interchangeable gold-plated SPST contact blocks; standard one N.O. and one N.C., supports up to three sets of isolated contacts; contact rating 6 A @ 600 VAC or 1 A @ 250 VDC (alternate Form C/DPDT contacts available). Product Highlights Indoor turn-to-reset stopper station with 2–60 s pneumatic timer, polycarbonate housing and stainless steel backplate, interchangeable gold-plated contacts for security and access-control applications. Product Information Standard Information Brand : STI Manufacturer Part Number : SS2321LD-EN Country of Origin : United States Technical Specifications Brand : STI Manufacturer Part Number : SS2321LD-EN Product Name : Indoor only flush or surface turn-to-reset stopper station (Lockdown,…