6EP1333-3BA00 24V 5A Power Supply | Siemens SITOP

Introduction to the 6EP1333-3BA00

When your control cabinet demands reliable DC power, the 6EP1333-3BA00 from Siemens provides a stabilized 24V output. This SITOP PSU200M power supply accepts a wide AC input range, making it versatile for global installations. It is designed for continuous operation in industrial environments, ensuring your automation systems stay powered.

This unit supports single-phase and two-phase AC inputs, with a voltage range of 120–230V AC and 230–500V AC. The wide-range input capability means it can handle fluctuating grid conditions without issue. With a nominal output of 24V DC and 5A, it suits a variety of control loads.

Key Features and Technical Specifications

The 6EP1333-3BA00 offers several features that enhance its usability and safety. Below are the critical specifications extracted from the datasheet:

• Input voltage (AC): 85–264V (range 1) and 176–550V (range 2)
• Output voltage: 24V DC, adjustable from 24V to 28.8V
• Output current: 0–5A
• Rated power: 120W
• Efficiency: approx. 87%
• Residual ripple: max 50mV peak-to-peak
• Overvoltage protection: output limited to <35V
• Short-circuit protection: constant current or shutdown
• Galvanic isolation: primary/secondary, SELV output per EN 60950-1 and EN 50178
• Protection class: Class I
• Degree of protection: IP20
• Operating temperature: -25°C to +70°C
• Dimensions (W×H×D): 70mm × 125mm × 125mm
• Weight: approx. 1.2kg

The wide input range and high efficiency make this power supply a robust choice. The adjustable output voltage allows fine-tuning for specific loads. The built-in overvoltage protection safeguards connected equipment.

Applications and Use Cases

This power supply is suitable for a range of industrial applications, including PLCs, sensors, actuators, and control relays. The compact design allows for easy integration into control panels.

For example, in a packaging line, the 6EP1333-3BA00 can power multiple sensors and a small PLC. The stable 24V output ensures consistent operation, reducing downtime. In addition, the high efficiency helps lower energy costs over time.

Installation and Setup

Mounting the 6EP1333-3BA00 is straightforward. It snaps onto a standard 35mm DIN rail (EN 60715). The screw terminals accept wires from 0.2 to 2.5 mm² for both input and output connections. Ensure proper ventilation around the unit to maintain optimal operating temperature.

Before wiring, verify the input voltage matches your supply. Use the switch on the device to select the appropriate input range. For two-phase operation, use linked circuit breakers as recommended in the datasheet.

Maintenance and Reliability

Regular inspection is key to long-term reliability. Check the input and output connections periodically for tightness. Keep the unit free from dust and moisture. The power supply is designed for continuous operation, but ambient temperature should not exceed 70°C.

With proper care, this unit can provide years of service. Its robust design includes protection against short circuits and overloads, minimizing the risk of failure.

Compatibility and Integration

The 6EP1333-3BA00 is part of the SITOP modular family. It can be paralleled with another unit for increased power (up to 2 units). Optional signaling modules (e.g., 6EP1961-3BA10) can be added for remote monitoring. The output is SELV, making it safe for use with low-voltage control circuits.

Troubleshooting and Common Issues

If the output voltage is missing, check the input supply and the internal fuse (T 3.15A, not accessible). The LED indicators provide status: green for 24V OK, yellow for overload, red for shutdown. If the unit shuts down due to overload, reduce the load or check for short circuits.

For persistent issues, consult the official Siemens manual or contact AutoDCSTech for support.

Product Support and Availability

The 6EP1333-3BA00 is available at AutoDCSTech. We offer competitive pricing and fast shipping. Contact our team for availability and delivery options.