DC Power Supplies

We stock Power Control Systems' SQ range of AC to DC power supplies. We can supply others or suggest alternatives if you contact us.

PCS SQ Power Supply

Providing 24Vdc from a 400-500Vac supply, the SQ range is available from 5 to 40A output.

Specification and prices below:

Input Voltage 400-500V 3 Phase
Input Frequency 50/60Hz
Efficiency 88 to 91% at Pnom (88% at 5A, 90% at 10-20A, 91% at 40A)
Switching Operating
Frequency
60 to 150Hz typ. (70Hz at 5-10A, 150Hz at 20A, 60Hz at 40A)
Power Factor 0.7 to 0.86 typ. (0.7 at 5-10A, 0.85 at 20A, 0.86 at 40A)
Input Protections Inrush Current typ. <30A @ Vin max, cold start.
EMI/RFI filter. Line Fuses
Output Protections Overvoltage Protection. Over Load Protection
Output Power 120/240/480/960W
Operating Temperature -10°C to 70°C
Temperature
Power Derating
60÷70°C
Storage Temperature -40°C to 85°C
Temperature Drift 0.05%/ °C typ.
Humidity 10÷90% non condensing
Cooling Natural Convection
Control and Adjustment Vadjust trimmer (21.6…28.0V)
Operating Indicators Green LED Vout OK
Dielectric withstand Voltage Conform to EN 60950-1
Enclosure IP20
Isolation Output – P.E.:500Vdc
International Standards CE and EN, IEC and CSA pending
Model
Number
Output
Voltage
Output
Current
Line
Reg
Load
Reg.
Ripple & Noise
(0÷20MHz)
Unit
Price
400-500V 3ph input
SQ136-3F-400-500 24V 5A 0.5% 1% <100 Contact us
for pricing and
availability
SQ256-3F-400-500 24V 10A 0.5% 1% <100
SQ496-3F-400-500 24V 20A 0.5% 1% <100
SQ976-3F-400-500 24V 40A 0.5% 1% <100
Dimensions
Model Height(mm) Width(mm) Depth(mm) Weight(kg)
SQ136-3F-400-500 125 45 130 0.75
SQ256-3F-400-500 170 45 130 1
SQ496-3F-400-500 125 140 135 1.8
SQ976-3F-400-500 170 195 130 3.3