Siemens 6EP3437-8SB00-0AY0 40A Power Supply

Siemens 6EP3437-8SB00-0AY0 SITOP PSU8200 Power Supply

The 6EP3437-8SB00-0AY0 is a high-power Siemens SITOP PSU8200 stabilized power supply. It is designed for three-phase AC systems to deliver a robust 24V DC output. This unit is built for demanding industrial applications requiring reliable, high-current power.

Core Electrical Specifications

• Brand & Model: Siemens 6EP3437-8SB00-0AY0 (PSU8200)
• Input Voltage: 3-Phase AC, 400-500V (320-575V range)
• Output Voltage: 24 V DC (adjustable 24 - 28 V)
• Rated Output Current: 40 A
• Output Power: 960 W
• Efficiency: Up to 94%
• Protection: Short-circuit proof (latching or current-limiting), overload, overvoltage.

Features, Approvals & Physical Data

• Key Features: "24V OK" relay alarm contact, parallel operation capability, high MTBF (~517k hours).
• Important Note: Explosion protection (Ex) approval is no longer available for this version.
• Safety Approvals: CE, cULus, BIS, CB, RCM, EAC, shipbuilding (ABS).
• Mounting: Snaps onto 35x15 mm DIN rail.
• Dimensions: 135 mm x 145 mm x 150 mm (W x H x D)
• Weight: 3.3 kg
• Operating Temperature: -25°C to +70°C

Frequently Asked Questions

• Q: What is the primary use for this power supply?
  A> It is ideal for central power distribution in large control cabinets, powering multiple PLC racks, drives, and high-current loads.
• Q: What does the alarm contact do?
  A> The relay contact closes when the output voltage is normal, providing a simple signal for remote monitoring or control interlocking.
• Q: Can two units be used together?
  A> Yes, up to two units can be paralleled for redundancy or increased power capacity (up to 80A).