Switching Power Supply 36 V 350 W

Key Features:
  • Brand: Longs Motor
  • Power: 350 W
  • Output voltage: 36 VDC
  • Output current: 9.7 A
  • Input voltage: 200-240 VAC or 100-130 VAC


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Switching power supplies are designed for high efficiency and small size. They incorporate a switching regulator to convert electrical power efficiently. Switching DC power supplies regulate the output voltage through a process called pulse width modulation (PWM). Using a PWM allows various topologies to be used such as buck, boost, forward converter, half bridge rectifier, or flyback depending on the output power requirements. The PWM process generates some high frequency noise, but enables the switching power supplies to be built with very high power efficiency and a small form factor. A switching power supply has greater efficiency than linear regulators because the switching transistor dissipates little power when acting as a switch.

Product characteristics:

  • ideal for Nema 23 stepper motors
  • small volume, light weight
  • safety, high reliability
  • excellent performance: switching power supply has delay detection circuit of 5-10 seconds to protect the load from high voltage and large current output
  • full protection function: short circuit, overcurrent, overload, overheat
  • fan dependent cooling
  • convenient installation
Index Type S-350-24 S-350-36 S-350-48 S-350-60
DC Voltage


24V 36V 48V 60V
Voltage Tolerance ±1% ±1% ±1% ±1%
Rated Current 14.6A 9.8A 7.3A 5.8A
Current Range 0-14.6A 0-9.8A 0-7.3A 0-5.8A
Ripple & Noise(Max.) 150mVp-p 200mVp-p 240mVp-p 240mVp-p
Line Regulation ±0.5% ±0.5% ±0.5% ±0.5%
Load Regulation ±0.5% ±0.5% ±0.5% ±0.5%
Rated Power 350.4W 351W 350.4W 350.4W
Rated Power 83% 83% 83% 83%
Voltage Adjust Range 20-26.4V 31-40V 41-56V 54-66V
Voltage Range 90-132VAC/180-264VAC 47~63Hz
AC Current 4.5A/115V 2.5A/230V
Inrush Current (Max.) 25A/115V 50A/230V
Leakage Current <3.5mA/240VAC
Overload Protection 105-145% TYPE: OUTPUT CUTOUT AC Restart
Over-voltage Protection 115%-135%
Over-temperature Protection RTH3≥60°C FAN ON,  ≤50°C FAN OFF, ≥85°C OUTPUT CUTOUT
Temperature Coefficient ±0.03%/°C (0~50°C)
Setup, Rise, Hold Time 200ms, 100ms, 20ms
Vibration 10~500Hz, 2G 10 min,/11 cycle, 60 min, each axes
Withstand Voltage I/P-O/P:3KVACI/P-FG:1.5KVACI/P-FG:0.5KVAC
Isolated Resistor I/P-O/P,I/P-FG,I/P-FG:500VDC/100MΩ
Working Temperature, Humidity -10°C~+50°C, 20%~90%RH
Storage Temperature, Humidity -20°C~+85°C, 10%~95%RH
Dimension 215x115x50mm (L*W*H)
Weight 0.9kg
Safety Standards UL1950
EMC FCCpart1.5J class A

* All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25°C ambient temperature. Ripple & noise are measured at 20MHZ of bandwidth by using a 12 twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.




350 W

Output voltage

36 VDC

Output current

9.7 A

Input voltage

200-240 VAC or 100-130 VAC