SAPG-500-1B with charging

• Compact size and lightweight.

• High reliability and low price.

• Wide input voltage range.

• High conversion efficiency and low operating temperature rise.

• Built-in filter circuit, minimizing external radiated interference.

• Basic protection circuitry, providing good environmental adaptability.

• 4-hour, 100% full load aging and full-series functional testing.

Features
Model
Parameters

SAPG-500-1B

Rated Output Voltage

DC +24V

BAT +28.5V

Output Interface Location

The terminal blocks are labeled DC+, DC-, BAT-, BAT+, and BAT.SW, respectively.

Output Voltage Range

Setting error: ±0.2V; Adjustable range: ±10%

Setting error: ±0.5V;

Rated Output Current

20A

2A

Load current range

0～20A ( MAX=20A )

0～2A ( MAX=2A )

Output Voltage Ripple

Vnor<9mV ；Vp-p100Hz<200mV；Vp-pmax<200 mV

Vnor<12mV ；Vp-p100Hz<220mV；Vp-pmax<250 mV

Li;Lo Regulation

Line:±0.5%；Load:±0.8%

Line:±1%；Load:±15 %

Overall Voltage Regulation Accuracy

±1%

±20%

Rated Output Power

500W

Rated Operating Efficiency

≥75% (output power is rated value)

Rated Input Voltage

Rated voltage: AC176~265V, operating voltage: AC220V±30%. Interface position: Three-position open socket, labeled AC-L, AC-N, FG.

Rated Input Current

Rated current: AC 6.0A, current range AC 5.0～7.0A

AC Input Frequency

Rated AC voltage frequency range 47～63Hz, sine wave

Inrush Current

The inrush current to the power grid at the moment of power-on: the maximum value during cold start is 60A/10ms.

Input Overvoltage Protection

Input allowable range: AC0～280V; Overvoltage protection point: AC300V±5V, power supply enters irreversible shutdown state.

Output Overload Protection

The +24V overload protection point is approximately 105%~120% of the rated output power; the overload protection is an online current-limiting and voltage-reducing method; short-circuit protection requires input reset.

UPS battery management function

An external 24V lead-acid battery (5~30AH capacity) is required as backup power. The system automatically switches to backup power when AC power is interrupted, and the system switching is uninterrupted. When AC power is normal, it automatically switches back to AC power and manages the battery.

It has a float charging function for external batteries (5~30AH), and all protection functions can be automatically reset.

Power supply timing parameters

Setup time ≈ 200ms; Settlement time ≈ 50ms; Hold-up time ≈ 20ms

Dielectric strength parameters

Input-output: AC1.5KV; Input-casing: AC1.5KV; Output-casing: AC0.5KV; Leakage current 5mA; 50Hz; 1min.

Operating temperature parameters

The operating temperature drift coefficient is approximately ±0.03 [%/℃]; the absolute temperature rise coefficient is approximately 0.50 [℃/W]; the absolute temperature rise of the chassis when operating at rated power is 35℃±5℃.

Environmental conditions parameters

Storage environment: -20℃ to +85℃; 10% to 95%RH. Operating environment: 0℃ to +45℃; 20% to 90%RH. (Varies depending on usage environment and power consumption)

Cooling method

Designed for continuous operation, air-cooled. (Power consumption and lifespan are affected by the operating environment and installation location.)

External dimensions and mounting dimensions

Specifications and dimensions: L232×W110×H110mm3;

Net weight and color

It weighs approximately 2.0 kg; the shell is made of 1.0 mm thick iron, with a yellowish-white surface.

Certification Security Specifications

National Standard GB-4943

Note: 1) All the above test indicators were measured under the following conditions: within the rated input voltage and rated output load range, the environment was 25℃, 85%RH, and there was no wind.

2) Output DC voltage ripple test: A parallel stranded wire with a length of 30cm and a cross-section of 1mm², with 0.1μF and 0.47μF capacitors connected to one end, was bypassed at the test point. The maximum peak-to-peak value of the main frequency ripple Vp-p100Hz and the maximum peak-to-peak value of the combined ripple Vp-pmax were measured respectively.

3) Li voltage regulation rate: When the load is at the rated value, the input voltage varies within the rated range; Lo load regulation rate: When the input is at the rated voltage value, the load varies from zero to the rated value.