Siemens Sitop PSU6200 Stabilized power supply input, 24V, 40A Part number 6EP3437-7SB00-3AX0

Product Overview

The Siemens 6EP3437-7SB00-3AX0 is a SITOP PSU6200 series DIN-rail power supply unit providing a regulated 24 V DC output at 40 A (960 W) from a wide input range of 400–500 V AC or 450–600 V DC. It features advanced diagnostic interfaces, high efficiency (~96 %), compact installation width (95 mm), and is designed for industrial automation applications requiring reliable 24 V DC power in three-phase or DC feed systems.

Key Features

• Wide-range input: 3-phase AC (400-500 V) or DC (450-600 V) for global flexibility
• Output: 24 V DC nominal, 40 A rated current (960 W output)
• High efficiency: approx. 96% under rated conditions
• Diagnostic interface and green LED indication for 24 V OK status
• Parallel operation capability (up to 2 units) to increase power or provide redundancy
• Compact width of approximately 95 mm for DIN-rail mounting in control cabinets
• Designed for industrial environments: ambient operating temperature range from –30 °C to +70 °C (with derating above +45 °C)

Technical Specifications

• Article Number: 6EP3437-7SB00-3AX0
• Series: SITOP PSU6200
• Input Voltage Range (AC): 400-500 V AC, 50/60 Hz
• Input Voltage Range (DC): 450-600 V DC
• Output Voltage: 24 V DC (±3% tolerance)
• Output Current: 40 A; overload capability up to 48 A till +45 °C
• Output Power: 960 W nominal; up to 1152 W up to +45 °C
• Efficiency: Approx. 96%
• Width (W): 95 mm
• Height × Depth: approx. 135 mm × 155 mm
• Weight (approx.): 2.1 kg
• Parallel Operation: Up to 2 units for increased power or redundancy
• Operating Temperature Range: –30 °C to +70 °C (with derating above +45 °C)

Compliance & Certifications

• Galvanic isolation between input and output
• Protection rating (front) IP20
• UL / cULus Listed (UL 508, CSA C22.2 No. 107.1)
• CE, EAC approved
• Meets EMC standard EN 55022 (Class B) and interference immunity EN 61000-6-2

Applications

Ideal for use in industrial control panels, machine automation systems, OEM modules, and distributed I/O installations where a reliable 24 V DC power supply is required from a high-availability AC or DC source. Typical use cases include manufacturing equipment, packaging lines, infrastructure automation and any environment where DIN-rail mounting, high power density and diagnostic capability are needed.