Simplex 636-341 Power Supply Inquiry Item

Details

This Simplex 636-341 is a dedicated switching power supply assembly for Simplex 4020 fire alarm control panel. It converts AC mains into stable 28.5VDC regulated power for fire alarm circuit boards, detectors, sounders and also provides lead-acid battery charging function. It adopts high reliability switching topology, built-in overvoltage, overcurrent and short-circuit protection. When AC power fails, the battery supplies power continuously to maintain the fire alarm system running. It is a core replacement spare part for commercial building fire safety control cabinets.

Specifications

Model: 636-341 Brand: Simplex Applicable system: Simplex 4020 fire alarm host Input voltage: 120/220/240 VAC Output: 28.5 VDC, max 8A continuous Battery charging current: up to 4A Structure: Integrated switching power assembly Certifications: UL, FM

Components & Troubleshooting

High frequency switching PCB, power transformer, rectifier filter circuit, charging management circuit, heat dissipation housing, wiring terminal. Common faults: no DC output, unstable voltage, failure to charge battery, overheating alarm, AC fault report.

Disclaimer

This spare part shall be replaced and commissioned by qualified fire protection electrical technicians. Cut off AC and battery power before maintenance.