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Siemens 6EP1437-2BA20 SITOP PSU300S 400-500V 3AC 24V/40A Power Supply

% $-491.63
Siemens SITOP PSU300S 6EP1437-2BA20 400-500V 3AC 24V/40A power supply
Siemens SITOP PSU300S 6EP1437-2BA20 400-500V 3AC 24V/40A power supply

Siemens 6EP1437-2BA20 SITOP PSU300S 400-500V 3AC 24V/40A Power Supply

Brand: Siemens
Reference No: 6EP1437-2BA20
Catalog No: 6EP1437-2BA20
Series: SITOP PSU300S
Tariff Code (HS): 85044083
Rated Current: 40
Power: 0.96 kW
Rated Voltage: 400/500 V AC
Stock: 33
Delivery time: 1-2 business day(s)
Shipping Origin: Türkiye EXW
$491.63

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  • Description

The Siemens SITOP PSU300S (6EP1437-2BA20) is a stabilized DIN-rail power supply that converts 400-500 V three-phase AC input into a regulated 24 V DC output at up to 40 A. It delivers 960 W at 91.5% efficiency, includes a floating relay contact for a 24 V OK signal, and its output voltage is adjustable from 24 to 28 V via potentiometer for compensating cable drop.

Technical Specifications

SKU 6EP1437-2BA20
Brand Siemens
Series SITOP PSU300S
Input type 3-phase AC
Input voltage range 400-500 V AC
Line frequency 50/60 Hz (47-63 Hz)
Input current 2 A at 400V / 1.7 A at 500V
Output voltage 24 V DC (adjustable 24-28 V)
Output current, rated 40 A
Output current range 0-40 A (48 A up to 45 C)
Output power 960 W
Efficiency 91.5%
Power loss, typ. 89 W
Residual ripple, max. 150 mV
Output voltage tolerance +/-3%
Short-circuit protection electronic shutdown, automatic restart
Overload capability 150% Iout rated up to 5s/min
Buffering time, power failure, min. 6 ms
Galvanic isolation Yes (SELV, ES1)
Protection class IP IP20
Dimensions (W x H x D) 145 x 145 x 150 mm
Net weight 3.1 kg
MTBF at 40 C 500,000 h

Certifications & Standards

  • CE
  • UKCA
  • EAC
  • CB
  • shipbuilding
  • ABS
  • DNV
  • EPD

Selection Notes

The 40 A rating and 960 W output put this at the top of the PSU300S 3AC range, sized for cabinets with multiple PLCs, drives, and I/O racks on one 24 V bus rather than a single small load. The output accepts a 150% overload for up to 5 s per minute, which covers inrush from contactors and solenoids without nuisance shutdowns; automatic-restart short-circuit protection means it recovers on its own once the fault clears instead of requiring a manual reset.

Applications

Sized for control cabinets and machine panels needing a single 24 V DC bus for PLCs, I/O, drives, and sensors from a 400-500 V three-phase supply - typical in larger machine builds and process skids.

Technical Details

Short Description
SITOP PSU300S power supply, 400-500V 3AC input, 24V DC/40A output, 960W, IP20.
Rated Current (Ampere)
40
Rated Voltage (VAC)
400/500 V AC
Mounting Type
DIN Rail
Protection Type
IP20
Catalog No
6EP1437-2BA20
Standards
CE marking, UKCA marking, EAC approval, CB-certificate, shipbuilding approval, American Bureau of Shipping Europe Ltd. (ABS), Det Norske Veritas (DNV), Environmental Product Declaration
Power (kW)
0.96 kW
Delivery Date (Days)
1-2 days
Model Number
6EP1437-2BA20
Tariff Code
85044083

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