Comnet PS-DRA240-48A 48VDC DIN Power Supply

Overview

The PS-DRA240-48A is a 240W DIN-rail-mounted 48VDC power supply rated for extended temperature operation (-40°C to +71°C). It delivers 5A @ 48VDC with universal input (90–264 VAC or 210–375 VDC, auto-selectable), making it suitable for surveillance and industrial networking systems deployed in temperature-extreme environments — outdoor cabinets, rooftop enclosures, or unheated warehouses where standard commercial power supplies fail. Input range covers both line and low-frequency DC feeds common in hybrid generator/UPS environments.

Compatibility

This 48VDC output pairs with any Comnet PoE injectors, managed switches, or field IP cameras that accept regulated 48VDC feeds. It is also compatible with third-party network edge devices and distributed camera systems that source power from a central DIN supply. The 5A capacity covers typical multi-port configurations (e.g., four to five PoE+ cameras or a small hardened switch stack). Confirm your load's total current draw before installation.

Installation Notes

Input tolerance spans 90–264 VAC single-phase and 210–375 VDC, with automatic selection — no input jumpers required. Output voltage trim is adjustable from 47–56 VDC if site-specific voltage compensation is needed. Efficiency is 90% typical, dissipating only 32W, so external heatsinking is not required in most cabinet layouts. Hold-up time of 25–30 ms ensures brief mains dropout does not collapse the 48V bus. Inrush current peaks at 30A (90–150 VAC input) or 60A (210–375 VDC input) — confirm your site breaker rating and wiring gauge. IP20 metal enclosure is suitable for DIN-rail mounting in panel-mounted or cabinet environments; outdoor direct-weather mounting requires an additional weatherproof cabinet. UL, cUL, TÜV, and CE certifications confirm safety compliance across North American and international markets. Operating range spans -40°C to +71°C; storage range extends to +85°C. MTBF >435,000 hours at 40°C.