12V DC Fail Safe NO type Door Electric Stroke Lock For Access Control Smart Locks (NO Lock) - ShopVlot

1. Safe failure, NO mode (locked when power is removed) 2. Suitable for wooden door, glass door, metal door, fireproof door 3. Holding force: 500 kg/1100 pounds 4. Safety function: built-in voltage spike suppressor 5. It is a single-function solenoid, can be wired in any way. With two contacts and no polarity requirement. (The lock has polarity when a diode is added.)