STEP 351 is a motor lock with a hook bolt for night locking. The lock housing has a modern piston arrangement with the hook bolt placed in the center of the lock case. Meets the requirements of lock classes 2A, 2B and 3 according to SSF 3522.
STEP 351 is part of STEP's new revolutionary 300 series. It is a fast hook bolt motor lock that can withstand heavy loads.
The lock has a double blocking where the hook bolt blocking is also blocked. The position of the latch is read by an optical sensor so you can be sure that it is really locked. The latch is completely protected from access and thus ensures protection against manipulation.
STEP 351 is equipped with FreeDrive®, STEP's unique and patented technology that completely disengages the lock's motor and gearbox every time the door is mechanically unlocked.
The article contains:
ST351 Engine lock
ST0916H 10 m cable, 8×0.25 mm²
ST0910 Magnetic contact
ST1199 Drill protection
ST1192 Screw and connector set
Properties:
Unlocks in less than 0.1 second
Modern piston placement
Both controllers handle rehousing
FreeDrive® technology
Tamper-proof locking technology
50 mm mandrel depth
Encrypted communication AES-128
Guarantees opening despite strip pressure of up to 5 kg
Connection to the motor lock is via RS-485
Evacuation and re-entry are ensured together with STEP Exit emergency evacuation accessories. Certified according to SS-EN 179:2008
Certified for burglary protection in lock class 2A, 2B and 3 according to SSF 3522
Certified in fire protection class E/EI120 according to SS-EN
Certified in Grade L for corrosion, temperatures and humidity, which corresponds to high requirements according to SS-EN 14846
Designed for use in high-frequency doors
The control unit can withstand temperatures from -5 to +70 degrees
The lock can withstand temperatures from -20 to +70 degrees
Function:
The latch locks/unlocks electrically via an opening signal from an access control system, code lock, push button or similar.
Battery CR2032 5-pack Button cell battery Lithium 
