6EP1332-1SH52 24V 4A Power Supply | Siemens

Introduction to the Siemens 6EP1332-1SH52

When your control cabinet demands stable, isolated DC power, the 6EP1332-1SH52 from Siemens LOGO!POWER series provides a dependable solution. This stabilized power supply converts a wide-range AC input of 85 to 264 V AC or a DC input of 110 to 300 V DC into a regulated 24 V DC output. With a rated current of 4 A, it suits a variety of industrial loads, from sensors to small controllers.

Engineered for efficiency, the unit achieves approximately 89% efficiency at full load, reducing energy waste and heat generation. Its compact dimensions—90 mm wide, 90 mm high, and 52.6 mm deep—allow easy DIN-rail mounting in space-constrained enclosures.

Key Features and Technical Specifications

The 6EP1332-1SH52 offers several features that enhance reliability and ease of use:

• Wide-range input: Accepts 85–264 V AC or 110–300 V DC, simplifying global deployment.
• Adjustable output voltage: The output can be set between 22.2 and 26.4 V DC to accommodate varying load requirements.
• Short-circuit proof: The output is short-circuit protected, with current limiting at typically 5.2 A.
• Parallel operation: Up to two units can be paralleled for enhanced performance.
• High efficiency: Approximately 89% efficiency at rated output reduces operating costs.
• Low ripple: Residual ripple peak-to-peak is typically 30 mV, ensuring clean power for sensitive electronics.

Additionally, the power supply features electrical isolation between input and output, complying with EN 60950-1 and EN 50178 standards. The IP20 protection rating makes it suitable for indoor, controlled environments.

Applications and Use Cases

Thanks to its wide input range and stable output, the 6EP1332-1SH52

• Control panels for machinery and process automation.
• Powering PLCs, sensors, and actuators in industrial environments.
• Building automation systems, such as HVAC controllers.
• Test and measurement equipment requiring low ripple DC.

Its ability to operate on both AC and DC input makes it versatile for backup or renewable energy systems.

Installation and Setup

Mounting the 6EP1332-1SH52 is straightforward. It is designed for DIN-rail mounting, and the housing is clip-on for easy installation. The screw terminals accept solid or stranded wires, and the input and output connections are clearly marked. Before wiring, ensure the power supply is de-energized. Connect the AC or DC input to the L and N terminals (or + and – for DC), and the output to the + and – terminals. The output voltage can be adjusted using the potentiometer on the front panel, if needed.

Performance Metrics and Reliability

Dynamic load regulation is tight, with output voltage deviation of typically ±1.5% during 10/90/10% load steps. The load step setting time is typically 1 ms, ensuring fast response to changing loads. Mains buffering at rated current is at least 40 ms, providing ride-through during brief power interruptions.

The unit operates over a wide ambient temperature range of -20 to +70 °C, making it adaptable to various industrial settings. Its robust design includes a metal housing that can be DIN-rail mounted, and it weighs just 0.34 kg.

Maintenance and Longevity

Regular inspection of the power supply is recommended to ensure long-term reliability. Check for dust accumulation on the housing and vents, and clean with a dry cloth if necessary. Verify that all terminal connections remain tight. The unit has no user-serviceable parts inside; if a fault occurs, contact a qualified technician or replace the unit.

Availability and Support

The 6EP1332-1SH52 is available from AutoDCSTech. Contact our team to check stock and lead times.