Silent Knight PS-DA — conventional non-coded dual-action manual pull station with screw terminals and key-lock reset.
Dual action means the handle must be pushed in and then pulled down — a deliberate two-step motion specified in schools, dormitories and public corridors, where single-action stations collect accidental and malicious pulls. Once operated it latches visibly down and can only be restored with the key.
- One normally open initiating input; contacts rated 0.25 A at 30 VAC or VDC
- Screw terminal connections; key-lock reset
- Dimensions: 5-1/2" H × 4" W × 1-7/16" D; red Lexan
- Semi-flush to a single-gang, double-gang or 4" square box; surface with the SB-I/O box
- 32°F to 120°F (0°C to 49°C); UL and CSFM Certified; meets the ADA 5 lb pull force
This is the conventional dry-contact model, not an addressable station — on an addressable SLC it needs a monitor module. Check the suffix: PS-DAH is hex-key reset, PS-SA is single action with pigtails, and only the PS-DALOB is listed for outdoor use.