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SIEMENS 6EP3437-8SB00-0AY0 power supply
Industrial automation systems
PLC, HMI, and sensor power supplies
Machine and process control systems
Uninterruptible power supply for critical loads
PROFINET and other industrial network systems
The SIEMENS 6EP3437-8SB00-0AY0 is a 3-phase stabilized power supply from the SITOP PSU8200 series, designed for industrial applications. The input voltage is 400–500 V AC and the output is 24 V DC / 40 A. Its maximum output power is 960 W, offering high performance and reliability.
⚙️ Electrical Specifications:
Input voltage: 3-phase 400–500 V AC (wide range)
Input frequency: 50/60 Hz
Input current: 2.1 A @ 400 V / 1.7 A @ 500 V
Output voltage: 24 V DC (adjustable: 24–28 V)
Output current: 40 A
Output power: 960 W
Voltage tolerance: ±3 %
Voltage control accuracy: ±0.1 % (input ripple), ±0.2 % (load ripple)
Residual ripple: Max. 100 mV
Voltage peak: Max. 240 mV
Startup delay: Max. 0.1 s
Voltage rise time: Max. 100 ms
Power failure buffer time: ≥10 ms @ 400 V
Protection and Functions:
Output voltage adjustable: Via potentiometer
Status indicator: Green LED (“24 V OK”)
Signal output: Relay contact (NO, 60 V DC / 0.3 A)
Overcurrent limitation: Max. 13 A (at 25 °C)
I²t value: Max. 2.24 A²·s
Fuse protection: External 3-pole MCB (10–16 A, C characteristic) is recommended.
Physical Characteristics:
Dimensions (mm): 225 × 220 × 185
Weight: 3.3 kg
Mounting type: DIN rail or panel mount
Protection class: IP20
Country of origin: Romania
Ambient Conditions:
Operating temperature: –25°C to +70°C (with derating)
Storage temperature: –40°C to +80°C
Humidity: 5% to 95% (non-condensing)
Vibration resistance: 1 g (10–500 Hz)
Impact resistance: 5 g, 30 ms
Compliance and Certifications:
RoHS & REACH compliant
WEEE take-back obligation: Yes
Approvals: CE, UL, cULus, CSA, CB, RCM, EAC
HS Code: 85044083