Tyco RPS-424 Power Supply
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RPS‑424 is a Tyco‑produced solid‑state power supply used in Simplex/Grinnell TFX fire alarm systems, providing 24 VDC from 120/240 VAC at 1.5 A (or 0.75 A). Common failure modes include output voltage sag due to degraded electrolytic capacitors or MOSFET wear, overheating from blocked airflow or fan failure, and internal regulator faults that trigger the unit’s built‑in protection shutdown. First‑check steps: verify AC input voltage and current with a multimeter; inspect the supply for visible signs of heat damage, bulging caps, or burnt components; then measure the 24 VDC output while the alarm system is powered to confirm regulation.[oss-gpt-20b] |
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We specialize in the repair and refurbishment of high-end industrial control electronics and power systems like this unit.
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Tyco RPS-424 Power SupplyContact Us
🚑Shop Location🛠️
Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
🚑 Rush repair shipments only — no walk-ins.
📞Phone
📦Mailing Address🚛
Industrial Electronic Repair
931-E S. Main St #204
Kernersville, NC 27284
📦 Mailing Address (for invoices or shipped repairs)
No walk-ins accepted.