24vdc 2a 4 Way Power Supply | 2402/4Trs

The 2402/4TRS is a professional 24VDC regulated switch mode power supply designed specifically for fire door retention systems, hold-open magnets, door closers, and other 24V applications that do not require battery backup. Featuring four individually fused outputs and selectable fail-safe or fail-secure operation, it provides a flexible and reliable solution for life-safety installations.

Designed for fire system integration, the 2402/4TRS can be triggered via external voltage or volt-free contacts, allowing seamless connection to fire alarm systems and building management controls.

Key Features

• 24–26VDC regulated output
• 2A power supply capacity
• 4-way fused output distribution
• Suitable for hold-open magnets and door closers
• Selectable fail-safe or fail-secure operation
• Dual trigger inputs
• Switch mode technology
• Short circuit protection
• Back EMF protection
• LED status indicators

Technical Specifications

Power Supply Unit

• Product Type:
  • 4-Way Fire Door Retention Power Supply
• Output Voltage:
  • 24–26VDC Regulated
• Output Current:
  • 2A
• Outputs:
  • 4 Individually Fused Outputs
• Operating Modes:
  • Fail-Safe
  • Fail-Secure
• Trigger Inputs:
  • External Voltage Input
  • Volt-Free Contact Input
• Battery Backup:
  • Not Supported

Protection Features

• Short Circuit Protection
• Back EMF Protection
• Fused Outputs
• Regulated Output Protection

Indicators

• Mains Status LED
• Output Status LED
• Fault Status LED

Construction

• Mild Steel Enclosure
• White Powder Coated Finish
• Multiple Cable Entry Points
• Cable Retention Points

Typical Applications

• Fire door retention systems
• Hold-open door magnets
• Electromagnetic door retainers
• Fire alarm interfaces
• Door closing systems
• Healthcare facilities
• Educational buildings
• Commercial premises

Benefits

• Powers up to four door retention devices
• Flexible fail-safe or fail-secure configuration
• Compatible with fire alarm systems
• Simplifies fire door installations
• Reliable regulated output
• Purpose-built for life-safety applications

Typical Uses

The 2402/4TRS is commonly used to power:

• Hold-open door magnets
• Fire door retainers
• Electromagnetic door holders
• Fire alarm controlled doors
• Door closing systems
• Life-safety door equipment