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The ALTRONIX CORP AL400ULPD4R is a dual-voltage power supply designed for fire and security system applications. It delivers 12 or 24 volts DC at up to 4 amps through four individually fused supervised outputs, all housed in a red enclosure for quick visual identification in fire system installations. The red cabinet signals fire-rated equipment to responding technicians and inspectors. This unit is intended for licensed fire alarm and security system installers working in commercial or residential environments where code-compliant, supervised power distribution is required.
The AL400ULPD4R is suited for powering fire alarm panels, access control devices, or ancillary notification appliances that require stable, regulated DC power. The four fused supervised outputs allow each circuit to be individually protected and monitored, simplifying troubleshooting and maintaining system integrity. The red enclosure is a standard visual indicator used in fire system installations and helps satisfy field inspection requirements in many jurisdictions.
Designed as an OEM-style power supply for fire alarm and security system installations requiring UL-listed, supervised DC power distribution in a red-cabinet form factor.
Installation should be performed by a licensed fire alarm or low-voltage systems technician in accordance with NFPA 72 and applicable local codes. Disconnect and lock out all AC power before servicing or wiring output circuits. Each fused output should be loaded within its rated capacity to prevent nuisance fuse failures. Verify output voltage selection matches the requirements of the connected devices before energizing the system.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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