KKmoon 60KG/132lb Electric Magnetic Lock Fail Secure NC 12V for Door Entry Access Control System 60KG/132lb electric magnetic lock for door access control system. Secure NC mode: unlocked when power off, locked when power on. Power supply: DC12/1A; holding force: 60KG/132lb High quality and durable in performance. Suitable for: wooden door, glass door, metal door, fire-proof door.