ALF KS21 - Alpha Door Release Key switch

The ALF KS21 Alpha Door Release Key Switch is a durable and reliable access control accessory designed for secure door release operations in commercial and industrial environments across the UAE. Built with a stainless steel panel, this key switch ensures long-lasting performance, resistance to wear, and suitability for high-traffic areas.

This device is commonly used in access control systems to manually override or release doors using a key. It supports COM, NC, and NO contacts, making it highly compatible with a wide range of biometric systems, electric locks, and access control panels.

With a compact design (86mm x 86mm), the ALF KS21 can be easily installed in offices, secure facilities, and restricted areas. Its robust construction and reliable electrical performance make it ideal for environments that require controlled and authorized access.

Key Features

• Durable stainless steel panel construction
• Key-operated door release mechanism
• Supports COM, NC, NO, Tamper, and LED connections
• Compact size for easy installation
• Compatible with access control systems and electric locks
• Reliable performance in high-traffic environments

Technical Specifications

• Size: 86mm (L) × 86mm (W) × 20mm (H)
• Current Rating: 3A @ 36V DC (Max)
• Operating Temperature: 10°C to +55°C
• Operating Humidity: 0% – 95%
• Panel Material: Stainless Steel
• Structure: Stainless Steel Panel with Key
• Contacts: COM, NC, NO, Tamper, LED (+/-)
• Weight: 0.18 kg

Applications

• Office access control systems
• Emergency door release systems
• Secure facilities and restricted areas
• Commercial and industrial buildings
• Integration with electric locks and controllers

Availability & Support in the UAE

Distributed and supported by ZKTeco Distributor UAE across Dubai, Abu Dhabi, Sharjah and the wider UAE. Genuine product with manufacturer warranty, professional on-site installation, ZKBio software setup and dedicated after-sales technical support.