Honeywell PSU-240516 Power Supply

Module Overview

This power supply module provides regulated DC power to Honeywell control components. You can install Honeywell PSU-240516 directly into Honeywell system racks. The unit converts 240V AC input into stable 5V and 16V DC outputs. It supports hot-swappable replacement without system shutdown.

Technical Specifications

Parameter	Value
Dimensions (W x H x D)	200 mm x 100 mm x 150 mm
Weight	1.85 kg
Input voltage range	200V to 264V AC (240V nominal)
Input frequency	47 Hz to 63 Hz
Output voltage 1	5V DC at 16A
Output voltage 2	16V DC at 4A
Total output power	144 W maximum
Output ripple	< 20 mV peak-to-peak (5V), < 40 mV (16V)
Output protection	Overcurrent, short-circuit, overvoltage
Efficiency	> 85% at full load
Hold-up time	25 ms at full load
Status indicators	2 green LEDs (outputs OK), 1 red LED (fault)
Cooling method	Internal fan + passive heatsink
Total onboard components	268 discrete parts
Energy storage type	Large electrolytic capacitors
Energy storage rating	2200 µF at 400V DC (primary)
Operating temperature	0°C to +50°C

Board Layout and Components

The PCB separates primary and secondary circuits for safety isolation. Large electrolytic capacitors store 2200 µF of energy on the primary side. Moreover, 268 discrete parts include switching transistors and voltage regulators. An internal fan circulates air across the heatsink for cooling. Consequently, the module delivers full rated power continuously without overheating.

Installation Process

You can mount Honeywell PSU-240516 into any standard Honeywell rack slot. The backplane connector distributes DC power to all other rack modules automatically. Furthermore, front panel terminals accept 240V AC input wiring. Status LEDs and an audible alarm indicate power faults clearly.

Performance Advantages

This supply delivers 144 watts across two output voltages continuously. The 25 ms hold-up time bridges momentary power interruptions. Therefore, the control system continues operating through short voltage dips. The internal fan also maintains component temperatures within safe limits.

Safety and Compliance

Honeywell PSU-240516 meets CE, UL, and RoHS standards. The primary capacitors require 90 seconds to discharge below 50V. Hence, technicians must wait 1.5 minutes after AC removal before servicing internal components.