SCEC-Approved SL3-rated EVVA 4KS Master Key System For High Security Applications.
SCEC-Approved SL3-rated EVVA 4KS Master Key System – EVVA’s 4KS mechanical master key system delivers security managers a SCEC-approved SL3-rated solution designed for high-security government and enterprise applications.
EVVA 4KS (Four-Curve System) is built for maximum intrusion resistance and long-term operational reliability. The system delivers up to 133 billion key combinations and is protected by international patent until 2037. It supports complex and scalable master key hierarchies, making it suitable for use across large facilities with strict access requirements.
Unlike traditional pin-tumbler systems, 4KS operates without springs. Its springless, 4-curve key design uses 12 sliding elements and multiple control bars to resist picking, bumping, drilling and impressioning. Each key is scanned 4 times before the lock will open. The active sliders and curved tracks enable consistent performance even in harsh or corrosive environments.
Constructed from hardened nickel silver, 4KS keys are fully reversible, highly durable, and simple to use. Key control is tightly managed with authorised duplication, anti-copying protection, and secure key tracking. The system has been independently tested to Australian Standard Sc8 AS4145.2 and cycle tested to 100,000 operations, confirming its long-term mechanical integrity.
4KS is available through EVVA’s certified national dealer network and is already in use across sectors including transport, utilities, defence, healthcare, education, logistics and government infrastructure.
Don’t miss 4KS and all EVVA’s best products at SAGE, Realm Hotel Canberra next Thursday, November 20 – register here, see more from EVVA here and read more SEN news here.
SCEC-Approved SL3-rated EVVA 4KS Features:
- 133 billion key combinations with patent protection to 2037
- SCEC SL3 rated, meets Australian Standard Sc8 AS4145.2
- Springless mechanism with four-curve key and 12 sliders
- Active tamper resistance – anti-pick, anti-bump, anti-drill
- Durable, reversible nickel silver keys with tight key control
- Cycle tested to 100,000 operations.
“SCEC-Approved SL3-rated EVVA 4KS Master Key System For High Security Applications.”
