Stromag CFU 220/380V Rectifier Power Supply Unit

Description

The Stromag CFU 220/380V is a high-quality rectifier unit designed to provide a reliable DC power source from a standard AC supply. Encased in a rugged metal housing, this unit is ideal for powering electromagnetic brakes, clutches, and other DC components in industrial machinery. Its robust construction ensures long-term performance even in demanding operational conditions.

Specifications

• Manufacturer: Stromag
• Type: CFU 220/380V
• Part Number: 947-07490
• Function: Rectifier / Power Supply Unit
• Input Voltage: 220/380V AC

Label Info

• Serial Number: 4341
• Year of Manufacture: 2016

Application

This power supply unit is commonly used in applications requiring controlled DC voltage, such as motor braking systems, conveyor controls, and various automation tasks where electromagnetic components are deployed.

Country of Origin

This product is made in France.

CO2 Impact

Opting for this reconditioned unit instead of a new one prevents the emission of approximately 20.0 kg of CO2. This saving is comparable to driving a car for 100 kilometers.

Availability

This item is in stock and ready for immediate dispatch. Order now from PLC2Day for expert support and fast delivery.

FAQ

What is the typical output DC voltage for this CFU 220/380V unit?

As a half-wave rectifier, the output DC voltage is approximately 0.45 times the input AC voltage. For a 220V AC input, the output would be around 99V DC, and for a 380V AC input, it would be around 171V DC, which are standard voltages for many industrial brakes.

Yes, Stromag rectifiers like the CFU series are specifically designed for continuous industrial operation, such as holding a brake in the open position or keeping a clutch engaged for extended periods.

Typically for a unit like this, two glands are used for the AC power input (e.g., Line 1 and Line 2/Neutral), and the third gland is for the DC output (+ and -) that connects to the brake or clutch coil.

Last Update: Friday, March 13, 2026

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