DRF-24V480W3GBA Delta 480W Multi-Phase Slim Power Module

Product Overview

The DRF-24V480W3GBA is a highly robust, industrial-grade DIN rail power supply engineered by Delta Electronics. Designed for high-demand applications, it delivers a stabilized 24V DC output with a powerful 20A current rating (480W total output). This model features an ultra-slim, space-saving design and accommodates multi-phase electrical inputs, making it an excellent choice for complex machinery, automation panels, and rugged factory environments.

Key Advantages

• Flexible Multi-Phase Input: Seamlessly operates on either a 3-Phase network (320-575 Vac) or a 2-Phase infrastructure (340-575 Vac) to suit various plant layouts.
• Rethought for Charging & Constant Loads: Includes a built-in constant current circuit, allowing the unit to safely drive battery charging setups and heavy inductive loads without tripping.
• Environmental Protection: Features a high-quality conformal coating on the printed circuit board assemblies (PCBAs) to safeguard internal components against conductive dust, light moisture, and common industrial airborne pollutants.
• Advanced Diagnostics & Surge Protection: Offers a built-in DC OK dry relay contact and LED indicator for real-time monitoring, paired with a massive surge capacity protection rating of up to 6 kV (when utilized with an appropriate SPD).

Technical Specifications

Quick Installation Tips

• Mount the power supply vertically on a standard 35mm DIN rail to optimize the chassis' internal convective thermal dissipation.
• When wiring the input terminals, ensure correct phase configuration mapping (L1, L2, L3) and firmly tighten terminal screws to minimize localized resistance.
• Connect the built-in DC OK relay output directly to your PLC or supervisory system monitoring block for immediate remote diagnostics on line power failure.

Technical FAQs

Q1: Can the DRF-24V480W3GBA operate effectively if one incoming phase is lost?

A1: Yes, the unit specifies an input range accommodating 2-Phase (2 x 340-575 Vac) operation. However, continuous heavy-duty loading under a missing phase should be cross-referenced with Delta’s thermal and power derating specifications to ensure longevity.

Q2: What are the main benefits of a conformal-coated PCBA layer?

A2: Conformal coating applies a protective, non-conductive film over the internal electronics. This barrier safeguards delicate surface-mount components from short-circuiting or corroding when exposed to industrial dust, metallic shavings, and harsh environmental pollutants.

Q3: How does the "Cold Start at -40°C" feature assist with outdoor installations?

A3: Many standard power supplies fail to turn on or regulate voltage in extreme sub-zero conditions due to component thermal contraction. This unit is certified to safely initialize and establish a stable 24V output even at a freezing -40°C baseline.