型号
NI-500A electric drop bolt
type
fail safe / fail secure
Shear strength
4500Lbs/2000kg
Relock Delay Timer
0,3,6 seconds open time delay is adjustable
Push Button Contact
Door Open Push Button Input Contact
Rated Operating Voltage
DC 12V or 24V (Customization Available)
Optional Functions
LED,Buzzer,Lock Sensors
function
with signal timer delay
Suitable for
Wooden & Aluminum & Glass & Fireproof &Metal door
故障安全/故障安全不锈钢窄框架电动电子下降螺栓安全门锁，带信号输出
