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Product Specifications

Product Description

A high-power 3-phase 24V DC supply for large automation systems, the SITOP PSU8200 6EP3437-8SB00-0AY0 provides 40A continuous with the overload handling and protection flexibility demanded by production-critical equipment.

960W from a Compact 3-Phase Design

Drawing balanced current from a 400–500V AC 3-phase supply, this unit delivers 40A at 24V DC for powering entire control systems: large PLCs, multiple HMI stations, dozens of I/O modules, and field devices across a machine or production cell. The wide 320–575V input range handles voltage variations without derating.

Configurable Overload Response

Select between constant-current mode — supplying 60A during overload with gradual voltage reduction that allows the load to stabilize — and latching shutdown for applications where sustained overcurrent must trigger immediate disconnection. 150% extra power (60A) for 5 seconds per minute handles motor and contactor inrush.

Redundancy-Ready Architecture

Two units operate in parallel with a dedicated characteristic curve ensuring balanced current sharing. Combined with a SITOP redundancy module, this creates a redundant 40A power system where either PSU can carry the full load if the other fails.

Parameter Value
Input Voltage Range 320–575 V AC, 3-phase
Rated Output Voltage 24 V DC (adjustable 24–28 V)
Rated Current 40 A
Rated Power 960 W
Efficiency 92%
Overload Capability 150% for 5 s/min
Dimensions (W×H×D) 145 × 145 × 150 mm

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Siemens

3-Phase 24VDC 40A High-Efficiency PSU 6EP3437-8SB00-0AY0 960W

3ph 40A PSU, 92% efficiency
MPN/Series: 6EP3437-8SB00-0AY0

Product Specifications

Brand
Siemens
Part Number
6EP3437-8SB00-0AY0
Series
SITOP PSU8200
Type
Stabilized Power Supply
Input Voltage
400–500 V AC, 3-phase (320–575 V AC range)
Output Voltage
24 V DC (adjustable 24–28 V)
Rated Current
40 A
Rated Power
960 W
3-Phase 24VDC 40A High-Efficiency PSU 6EP3437-8SB00-0AY0 960W