PULS QS20-241 24V 20A DIMENSION Q-Series Power Supply

Product Overview

The PULS QS20-241 (QS20241) stands as a high-performance single-phase power supply within the renowned DIMENSION Q-Series, specifically optimized for high-demand industrial environments and Honeywell control architectures. This 100% brand new, original unit delivers a stabilized 24 VDC output at 20 A, providing 480 W of continuous power. Engineered with proprietary BonusPower® technology, the module supports transient peak loads of up to 720 W, ensuring system stability during motor startups or actuator surges. Its combination of high energy efficiency (93.9%) and hazardous area certifications (ATEX/IECEx) makes it the definitive choice for powering critical PLC systems, sensors, and field instrumentation in oil, gas, and chemical processing facilities.

Technical Specifications

The QS20-241 integrates advanced active Power Factor Correction (PFC) and the HiccupPLUS overload characteristic to maintain superior power quality.

Engineering Advantages

The PULS QS20-241 solves critical power infrastructure challenges through specialized design features:

• Handling High Startup Currents: The BonusPower® feature provides an additional 50% power reserve for up to 4 seconds. This prevents the power supply from tripping or dropping voltage when inductive loads, such as large DC motors or solenoids, initiate.

• Thermal Management and Longevity: Achieving 93.9% efficiency significantly reduces wasted heat. This lower heat dissipation extends the lifespan of the electrolytic capacitors and allows for side-by-side mounting in crowded control cabinets with minimal cooling requirements.

• Global Grid Compatibility: The wide-range input (100–240 VAC) and active PFC ensure the unit operates reliably on unstable power grids. The low inrush current prevents nuisance tripping of input circuit breakers, even when multiple units power up simultaneously.

• Ruggedized Security: The HiccupPLUS characteristic manages overloads by providing high short-circuit current for 4 seconds before entering a low-power pulsing mode. This protects cables from overheating while ensuring the system restarts automatically once the fault clears.

FAQs

• Can the QS20-241 operate in a series or parallel configuration?

  Yes. You can connect multiple units in parallel to increase output current or create N+1 redundancy systems. For series connections, the output voltage can be combined to reach higher voltage requirements, provided the total does not exceed 150 VDC.

• What is the benefit of the adjustable 24–28 VDC output?

  The adjustable range allows engineers to compensate for voltage drops across long cable runs to remote field devices, ensuring the connected sensors or PLCs receive exactly 24 VDC at the terminal.

• Does the unit require a separate fuse for DC input?

  While the unit handles DC input (110–150 VDC), we recommend installing external supplemental protection if the DC source has a high short-circuit capacity, ensuring compliance with local electrical safety standards.

• Is the QS20-241 compatible with Honeywell Experion or Safety Manager systems?

  Absolutely. This model is frequently specified for Honeywell installations due to its high reliability, narrow form factor, and robust certification set, which aligns with industrial control room standards.