27.6vdc 2a Power Supply | 2402Sm-2

The 2402SM-2 is a reliable 27.6VDC regulated power supply designed for access control, door entry, fire systems, and other 24V applications requiring battery-backed operation. Housed within a durable hinged steel enclosure, it delivers stable power output while incorporating integrated battery charging and comprehensive protection features.

Designed to accommodate up to two 12V 9Ah standby batteries, the 2402SM-2 ensures continued operation during mains failures, making it ideal for security and life-safety installations where uninterrupted power is essential.

Key Features

• 27.6VDC regulated output
• 2A power supply capacity
• Supports up to 2 x 12V 9Ah batteries
• Additional battery charging circuit
• Deep discharge protection
• Current limiting protection
• Short circuit protection
• Onboard tamper protection
• LED status indicators
• Hinged steel enclosure

Technical Specifications

Power Supply Unit

• Product Type:
  • Battery Backed Power Supply
• Output Voltage:
  • 27.6VDC Regulated
• Output Current:
  • 2A
• Battery Charging:
  • Additional 500mA Charging Circuit
• Battery Capacity:
  • Up to 2 x 12V 9Ah Batteries
• Compliance:
  • EMC EN61000-6-1
  • EMC EN61000-6-3

Protection Features

• Deep Discharge Protection
• Current Limiting
• Short Circuit Protection
• Mains Transient Protection
• Full Electronic Protection
• Onboard Tamper Protection

Indicators

• Mains Status LED
• Battery Status LED
• Output Status LED

Construction

• Mild Steel Enclosure
• White Powder Coated Finish
• Hinged Lid Design
• Multiple Cable Entry Points
• Rear Cable Entry Available
• Separate Fused Mains Connections

Typical Applications

• Access control systems
• Door entry systems
• Fire alarm interfaces
• Security systems
• Emergency release systems
• Building management systems
• 24V locking systems
• Commercial and industrial installations

Benefits

• Provides uninterrupted operation during mains failures
• Supports dual standby batteries
• Efficient switch mode technology reduces power consumption
• Comprehensive protection features
• Suitable for critical security and life-safety systems
• Easy installation and maintenance via hinged enclosure

Typical Uses

The 2402SM-2 is commonly used to power:

• Access control controllers
• Magnetic locks
• Door entry equipment
• Fire alarm interfaces
• Emergency release systems
• Security equipment
• Building management devices