531X111PSHAWG3 | 24VDC 62.5A Redundant PSU

Description

Product Introduction

The 531X111PSHAWG3 is a high-specification power supply for demanding Mark V rack configurations, delivering 1500W with a comprehensive feature set including load-sharing, remote sensing, diagnostic data logging, and USB log download. It’s built for critical turbine applications where power continuity and predictive maintenance are essential.

Compared to the 531X111PSHAWG2, the “G3” revision extends hold-up from 160ms to 170ms, expands data logging memory from 5000 to 10,000 events, and reduces inrush current from 27A to 26A. The ripple and noise was also improved from <70mV to <65mV. The terminal assignment is identical—direct drop-in. No firmware changes required.

Key Technical Specifications

Compatible Replacement Models

Frequently Asked Questions (FAQ)

Q: What’s the difference between the AWG3 and the APG3?
The APG3 has slightly longer hold-up (180ms vs. 170ms). Both have 10,000-event logging and USB download. The AWG3 is a slightly lower-spec but still fully featured supply—it’s a good option if you don’t need the absolute maximum hold-up, and it’s typically priced lower. For most applications, the AWG3 is more than sufficient.

Q: The Fault LED is red, but the DC OK LED is green. What’s happening?
Green DC OK means the 24V output is within spec. Red Fault indicates an internal warning—typically overtemperature (fan failure) or input voltage out of range. The data logger captures the fault, and the USB port allows quick log download for analysis. The diagnostic registers provide detailed fault type information.

Q: Can I run two AWG3 supplies in parallel for redundancy?
Yes—the AWG3 has OR-ing diodes and hardware load-sharing. Connect DC outputs together (+24V to +24V, 0V to 0V), connect load-share signal terminals together, connect remote sense terminals together, connect RS-485 terminals together (daisy-chain), and feed AC inputs from separate breakers. The supplies share the load within ±1%. Each supply has its own data log.

Q: Can I hot-swap the AWG3 while the rack is powered?
Yes, in redundant configurations (two supplies in parallel). In a single-supply config, pulling the supply shuts down the rack. If redundant, verify the OR-ing diodes are present before pulling one. The remote sense and load-sharing circuits automatically re-balance when you insert a new supply.

Q: What’s the expected lifespan of the AWG3?
The electrolytic capacitors are rated for 12,000 hours at 85°C. In a 40°C cabinet, the lifespan extends to about 18-22 years. The modular fan cartridge with dual ball-bearing fans is rated for 80,000 hours at 40°C (about 9.1 years). Replace the fan cartridge every 5-7 years proactively.

Q: What’s the lead time for a surplus unit?
We keep 2-3 units in stock. Domestic: 2-3 business days ground, overnight if ordered by 2 PM EST. International: 5-7 days via DHL, with customs potentially adding 1-3 days. We include a GE certificate of origin and commercial invoice with every shipment. Contact us if you need expedited shipping.

ABB XV9738A
п XP243X
NI PXI-7344
FOXBORO FBM233