l Meet BS476-20:1987,BS476-22:1987/E120 requirements
The life test times of the landing door lock ≥ 3 million, The applied voltage: DC110V or AC110V
l In accordance with GB7588 Standard No. 1 modified single pendulum test requirements
JJ | 700 | 750 | 800 | 850 | 900 | 950 | 1000 | 1050 | 1100 | 1150 | 1200 | 1250 | 1300 | 1350 | 1400 | 1450 | 1500 |
HH | 2000≤HH≤2400 | ||||||||||||||||
Remark | Swing lever unlock(HH≤2300),Top lever unlock(HH>2300) |
This model is specially designed for high-speed ladders, up to 10m / s. With double hammer closing method.