Dahua Technology DHI-ASF280A-V1 Electromagnetic Lock, 280 kg Holding Force, DC 12/24V, Surface Mount, Aluminum Alloy, for Access Control

In busy office buildings and industrial facilities, every access point must balance security with convenience. The Dahua DHI-ASF280A-V1 electromagnetic lock holds doors firmly with 280 kg (600 lbs) of force, releasing only when an authorized signal is received. This surface-mount lock is built for wooden, glass, metal, and fireproof doors, making it a versatile choice for access control systems.

Key specifications

• Holding force: 280 kg (600 lbs)
• Input voltage: DC 12V / 24V selectable
• Current draw: 480 mA @ 12V, 240 mA @ 24V
• Operating temperature: -10°C to +55°C (14°F to 131°F)
• Operating humidity: 0% to 95% non-condensing
• Lock body material: aluminum alloy shell
• Armature plate material: iron, dimensions 180 x 38 x 11 mm
• Lock status output: NO/NC/COM dry contact
• LED indicator for lock status
• Built-in MOV for reverse current protection
• Surface mount installation
• Certifications: CE, FCC

Why choose it

The DHI-ASF280A-V1 offers a strong 280 kg holding force, ensuring secure door locking in high-traffic areas. Its selectable voltage and low current draw make it energy efficient, while the built-in MOV protects against reverse current. The LED indicator and dry contact output allow easy integration with alarm and monitoring systems.

Ideal use cases

• Commercial building access control
• Office door security
• Industrial facility entry points
• Fireproof door applications (with appropriate brackets)

Good to know

This lock is CE and FCC certified, ensuring compliance with international standards. It operates reliably in temperatures from -10°C to +55°C and in humid environments up to 95% non-condensing. The aluminum alloy shell provides durability, and the included armature plate is made of iron for strong magnetic attraction.