PULS DC

The PULS ML series comprises single-phase AC/DC power supplies with power ratings from 15 W to 100 W, designed for low-power applications such as control circuits, sensors, and small relays. They typically accept 100–240 V AC input and provide 24 V DC or 110 V DC output. The PULS CT series, by contrast, includes three-phase input units, such as the CT10.241, which delivers 240 W at 24 V DC from a 380–480 V AC three-phase supply. The CT series is suited for higher-power industrial control panels where three-phase power is available and a compact, efficient supply is required. Both series are DIN rail mountable and housed in plastic enclosures, but they differ in input phase, power level, and target application.

Many PULS DIN rail power supplies are rated for operation up to 70°C ambient, but output power may need to be derated above a certain temperature, typically 60°C. For example, the QT20.241 (480 W, three-phase) can deliver full power up to +60°C and then derates linearly to 50% at +70°C. The ML series units generally operate from -25°C to +70°C with similar derating characteristics. Always consult the specific datasheet for the exact temperature derating curve, as it varies by model. Adequate ventilation or forced cooling may be required in enclosed cabinets to maintain reliable operation and expected service life.

PULS three-phase DIN rail power supplies, such as the QT20.241 and CT10.241, typically accept a wide input range of 380–480 V AC, covering common three-phase industrial voltages. Some models also tolerate voltage fluctuations and short input interruptions. The wide-range input allows the same unit to be used in different regions without adjustment. For single-phase models, input ranges often span 100–240 V AC, with some units also accepting DC input. Always verify the specific input range and frequency (50/60 Hz) for the model in question, as well as any required external fusing or circuit breaker ratings.

The PULS CPS20.241 is a single-phase 480 W, 24 V DC power supply. Its efficiency is typically around 93.5% at full load and 230 V AC input, according to the manufacturer's datasheet. High efficiency reduces heat dissipation inside the cabinet, which can extend the life of the unit and adjacent components. The CPS20.241 also features active power factor correction (PFC), which helps meet harmonic current limits and improves overall power quality. For precise efficiency curves at different load levels and input voltages, refer to the official PULS datasheet. Efficiency will vary with input voltage, load, and temperature.

Yes, several PULS ML series models provide a 110 V DC output, such as the ML15.051 (15 W, 3 A), ML30.101 (25 W, 5 A), ML60.241 (60 W, 2.5 A), and ML100.102 (90 W, 6 A). These units are single-phase, DIN rail mountable, and housed in plastic enclosures. They are commonly used to power control circuits, sensors, and small actuators that require 110 V DC. Note that the ML60.241 and ML30.101 are specified with a 110 V DC input in the product data, while others may accept AC input; always confirm the exact input and output specifications for the model you intend to use. 3G Electric stocks multiple ML series SKUs and can provide datasheets for verification.

PULS DIN rail power supplies are designed for mounting on 35 mm DIN rail according to EN 60715 (also known as DIN 46277-3). This is the standard rail used in most industrial control panels. The units typically feature a metal or plastic clip that snaps onto the rail without tools. For specific models, the mounting dimensions and weight are provided in the datasheet. Ensure the rail is securely fastened and that the power supply is installed with sufficient clearance for cooling, as recommended by the manufacturer. Some larger units may require additional support or a specific orientation for optimal thermal performance.