13.8vdc 3a Power Supply Small | 1203Sm-1

The 1203SM-1 is a compact 13.8VDC regulated power supply designed for access control, intruder alarm, door entry, and general security installations requiring reliable battery-backed operation. Housed within a small steel clam shell enclosure, it combines efficient switch mode technology with comprehensive protection features to deliver dependable performance in professional installations.

Designed to accommodate a backup battery up to 12V 9Ah, the 1203SM-1 ensures continued system operation during mains power failures, making it suitable for security systems where uninterrupted power is essential.

Key Features

• 13.8VDC regulated output
• 3A power supply capacity
• Compact clam shell enclosure
• Supports up to 12V 9Ah battery
• Additional battery charging circuit
• Deep discharge protection
• Short circuit protection
• Current limiting protection
• Front tamper protection
• LED status indicators

Technical Specifications

Power Supply Unit

• Product Type:
  • Battery Backed Power Supply
• Output Voltage:
  • 13.8VDC Regulated
• Output Current:
  • 3A
• Battery Charging:
  • Additional 500mA Charging Circuit
• Battery Capacity:
  • Up to 1 x 12V 9Ah Battery
• 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
• Front Tamper Protection

Indicators

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

Construction

• Mild Steel Enclosure
• White Powder Coated Finish
• Clam Shell Housing
• Multiple Cable Entry Points
• Rear Cable Entry Available
• Separate Fused Mains Connection

Typical Applications

• Access control systems
• Door entry systems
• Intruder alarm systems
• Security systems
• Electric locking systems
• Commercial premises
• Residential security installations
• General low-voltage installations

Benefits

• Provides battery-backed operation during mains failures
• Compact enclosure ideal for smaller installations
• Supports standby battery installations
• Efficient switch mode technology reduces energy consumption
• Comprehensive protection features for reliable operation
• Suitable for a wide range of security applications

Typical Uses

The 1203SM-1 is commonly used to power:

• Access control controllers
• Magnetic locks
• Electric strikes
• Alarm panels
• Door entry systems
• Security peripherals
• Monitoring devices