Dahua ASF280A Electromagnetic Lock – 280KG Single Door

Overview
The Dahua ASF280A Electromagnetic Lock delivers secure, reliable access control for single doors. Designed for wooden, glass, metal, and fire doors, it provides a powerful 280KG (617 lbs) holding force with no mechanical wear, ensuring long-term durability. Perfect for offices, commercial spaces, and security systems, this lock supports both DC12V and DC24V operation and includes signal feedback for door status monitoring.

Key Features

• Strong Holding Force – 280KG anti-pull capacity for enhanced security.
• Durable Construction – High-strength aluminum alloy shell with double insulation treatment.
• Low Maintenance – No moving parts, eliminating mechanical failure risks.
• Versatile Power Options – Works with DC12V or DC24V power supply.
• Signal Feedback – Supports door detector signal output.
• Protective Design – Built-in MOV reverse current protection and residual magnetic prevention.

Specifications

• Lock Dimensions: 250 × 47 × 26 mm (9.84" × 1.85" × 1.02")
• Suction Plate Dimensions: 180 × 38 × 11 mm (7.09" × 1.50" × 0.43")
• Holding Force: 280KG (617 lbs)
• Operating Voltage: DC12V or DC24V
• Starting Current: 480 mA (12V) / 240 mA (24V)
• Security Mode: Unlocks when power is off
• Operating Temperature: –30°C to +60°C (–22°F to +140°F)
• Operating Humidity: ≤95%
• Weight: 2 kg (4.41 lbs)
• Applicable Doors: Wooden, glass, metal, fire doors
• Accessories: 280L, 280U, 280ZL brackets
• Warranty: 1 year