Product Overview

The 24V 3A Power Supply 72W AC/DC Adapter delivers regulated 24V DC at up to 3A, designed for applications that require continuous, reliable power in a compact form factor. The universal AC input (100–240Vac, 47–63Hz) ensures compatibility with power grids worldwide, while the standard 5.5×2.1mm DC barrel connector mates directly with most 24V equipment. Measuring just 90×46×32, the 24V 3A Model fits neatly into tight enclosures and equipment racks without obstructing adjacent outlets.

Parameter	Specification	Parameter	Specification
DC Output Voltage	24V DC ± 5%	DC Output Rated Current	3A (3000mA)
Rated Power	3W	DC Connector	5.5×2.1mm (2.5mm optional)
Body Size	90×46×32 mm	DC Cable Length	1.2m / 1.5m (optional)
Input Voltage Range	100–240Vac	Input Frequency	47–63Hz
Input Current	0.6A (Max)	Efficiency	88%, Level VI
Ripple & Noise	≤120mV	Dielectric Withstand	3K Vac 1min
Protection	OVP, OCP, SCP, OTP	Operating Temp.	0°C to +55°C
Safety Certifications	UL/CUL FCC CE CB	Energy Standard	DoE Level VI

Design & Build Quality

The 24V 3A adapter uses a high-frequency switching topology with 105°C-rated capacitors and reaches up to 88% efficiency under DoE Level VI. At 72W continuous output, case temperature stays below 50°C, so it can be mounted in cabinets, racks and enclosures with limited airflow. The fanless, vent-free housing runs silent and resists dust — suitable for offices, studios and light industrial cabinets.

Typical Applications

With 72W of continuous output, the 24V 3A power supply covers a wide range of 24V DC loads:
LED strip lighting — drives 24V 5050 and COB strips up to about 4–5 m, with stable output that prevents flicker at the far end.
CCTV and access control — powers 24V cameras, video intercoms and electric locks, with low ripple (≤120 mV) for clean video.
Networking equipment — routers, switches, media converters and small PoE injectors requiring 24V DC.
3D printers and CNC — a stable 24V rail for control boards, hotends up to 40W, fans and stepper drivers.
Industrial controls — PLC I/O modules, sensors, relays and small solenoid valves.

Safety & Protection

Four independent protection circuits in the 24V 2A Model operate autonomously to safeguard both the unit and connected equipment:

• Over-Voltage Protection (OVP) — Shuts down output if voltage exceeds safe threshold; auto-recovers when fault clears.

• Over-Current Protection (OCP) — Limits output current to prevent damage from overloaded downstream wiring.

• Short-Circuit Protection (SCP) — Instantly cuts output when a short circuit is detected.

• Over-Temperature Protection (OTP) — Thermal shutdown activates if internal temperature exceeds design limits; resumes once cooled.

All protection modes are non-latching — the model automatically restarts after the fault condition is removed. Full UL/CUL, FCC, CE, and CB certifications support compliance for commercial, industrial, and residential installations worldwide.

Warranty & Technical Support

Every 24V 3A Model carries a 3-year warranty covering manufacturing defects. Technical support assists with compatibility verification, cable length selection, and connector configuration. OEM and ODM services are available for custom branding, cable lengths, and plug styles on bulk orders (MOQ 1000 pcs, 7–10 day lead time).