PULS QTD20.241 DC/DC-converter 24V 20A 480W DIN-rail

Industrial control panels and machinery often need a stable 24 VDC supply from a fluctuating battery or vehicle power source. The PULS QTD20.241 DC/DC converter delivers exactly that: it takes an input voltage between 18 and 32 VDC and provides a regulated, adjustable 24 VDC output at up to 20 A. With 480 W of output power and an efficiency of 95.2%, it keeps energy losses low and simplifies thermal management in tight enclosures.

Key specifications

• Input voltage range: 18 - 32 VDC
• Nominal input voltage: 24 VDC
• Output voltage: 24 VDC (adjustable 24 - 28 VDC)
• Output current: 20 A
• Output power: 480 W
• Efficiency: 95.2%
• Ripple & noise: < 50 mVpp
• Operating temperature range: -25 to +70 °C
• Mounting: DIN rail
• Protection class: IP20
• Overload protection: constant current, auto-recovery
• Short circuit protection: yes
• Overvoltage protection: 30 - 33 V
• Connection type: screw terminals
• Cooling: convection
• MTBF: > 700,000 h (SN 29500, 40°C)

Why choose it

The QTD20.241 is built for demanding industrial environments. Its wide input range handles voltage dips and surges common in battery-powered or vehicle-mounted systems. The high efficiency reduces heat generation, extending the life of surrounding components. The adjustable output voltage adds flexibility for applications that require a slightly higher voltage to compensate for line drops.

Ideal use cases

• Mobile machinery and vehicles with 24 VDC battery systems
• Industrial automation and control panels
• Marine electronics (GL certified)
• Telecom and renewable energy systems

Good to know

The converter is certified to UL 60950-1, UL 508, IEC 60950-1, CB Scheme, and GL (marine). It uses convection cooling, so no fan is required, which reduces maintenance and noise. The screw terminals allow secure wiring in high-vibration environments.