WEIDMULLER PRO MAX 70W Product Description

Overview

WEIDMULLER PRO MAX 70W is a Weidmüller connectPower PROmax switched-mode power supply for single-phase industrial control panels and DC-powered automation equipment. The public Weidmüller catalog identifies the PRO MAX 70W family in the 5 V, 14 A version, order number 1478210000, with a 70 W rated DC output. The supply converts AC or DC input into stabilized low-voltage DC power for PLCs, sensors, valves, relays, actuators, communication devices, instrumentation and other 5 V DC control loads. It is designed for TS35 DIN-rail mounting in cabinets and used as a replacement switched-mode power supply in existing PROmax installation bases.

Features

WEIDMULLER PRO MAX 70W provides a rated output voltage of 5 V DC, adjustable through a front potentiometer over 4.5 to 7 V DC. Rated output current is 14 A at 60 degrees Celsius; continuous current is 16.8 A at 45 degrees Celsius and 10.5 A at 70 degrees Celsius. Output power is 70 W. Residual ripple and switching spikes are below 50 mV peak-to-peak at rated output voltage and full load. Efficiency is 86 percent typical for the listed version.

The input accepts 85 to 277 V AC wide-range supply, with nominal input 100 to 240 V AC, frequency 45 to 65 Hz, and 80 to 370 V DC DC input range. Power consumption at nominal is 81.4 VA, AC input current is 1.5 A, and maximum inrush current is 15 A. The supply includes an internal input fuse, varistor input overvoltage protection, short-circuit protection, reverse voltage protection for the load and parallel operation for up to 5 units. Current limit is above 120 percent of rated current.

The power supply has a corrosion-resistant metal housing, IP20 protection, Overvoltage category III, pollution degree 2, and Class I protection with PE connection. Insulation ratings are 3.5 kV input to ground, 4 kV input to output and 0.5 kV output to ground. Operating temperature is -25 to 70 degrees Celsius, storage temperature -40 to 85 degrees Celsius, and operating humidity 5 to 95 percent non-condensing. It includes red or green LED status indication and a relay signal contact, with floating NO contact load maximum 30 V DC / 1 A. Dimensions are 32 mm wide, 130 mm high and 125 mm deep, with net weight 650 g.

Specs

Brand: Weidmüller / WEIDMULLERProduct family: connectPower PROmaxModel: PRO MAX 70W 5V 14AOrder number: 1478210000Product type: Switched-mode power supply, single-phase DC power module Rated output: 5 V DC, 70 WRated output current: 14 A at 60 degrees CelsiusContinuous output current: 16.8 A at 45 degrees Celsius; 10.5 A at 70 degrees CelsiusAdjustable output range: 4.5 to 7 V DCOutput ripple: Below 50 mV peak-to-peak at rated voltage, full load Efficiency: 86 percentAC input range: 85 to 277 V ACNominal AC input: 100 to 240 V ACDC input range: 80 to 370 V DCInput frequency: 45 to 65 HzNominal power consumption: 81.4 VAAC input current: 1.5 AMaximum inrush current: 15 AInput protection: Internal fuse; varistor overvoltage protection Output protection: Short-circuit protection; load reverse voltage protection Parallel connection: Yes, maximum 5 units Current limit: Above 120 percent rated current Housing: Corrosion-resistant metal Protection rating: IP20Overvoltage category: IIIPollution degree: 2Protection class: I, with PE connection Insulation: 3.5 kV input to ground; 4 kV input to output; 0.5 kV output to ground Operating temperature: -25 to 70 degrees CelsiusStorage temperature: -40 to 85 degrees CelsiusOperating humidity: 5 to 95 percent non-condensing Status indication: Red or green LED and relay contact Signal contact: Floating NO contact, maximum 30 V DC / 1 AMounting: TS35 DIN rail, horizontal cabinet mounting Dimensions: Width 32 mm, height 130 mm, depth 125 mmNet weight: 650 gMTBF: Minimum 1,400,000 h at 25 degrees Celsius, 230 V, 70 W output, 100 percent duty per SN 29500 Certification references: cURus E255651, cULus E258476, cULusEx E470829; RoHS and REACH listed Product status: Weidmüller PROmax replacement power supply for existing industrial control installations

Principle

WEIDMULLER PRO MAX 70W operates as a switched-mode DC power supply. Its input stage rectifies and filters the AC or DC supply, and the converter stage switches the input energy at high frequency to produce an isolated, regulated low-voltage DC output. The output feedback circuit adjusts converter operation to maintain the nominal 5 V DC level despite input voltage and load changes. Overload, short-circuit, reverse voltage and input protection features limit stress to the supply and connected DC equipment during abnormal conditions.

The status relay and LED report normal or fault output condition for cabinet monitoring. Parallel operation allows multiple units to share load where higher current or redundancy is required, subject to Weidmüller parallel connection rules and load distribution. The unit mounts horizontally on a TS35 rail with clearance above and below for air circulation; units may be mounted side by side without gap according to the catalog derating guidance. Replacement should verify the output voltage version, current requirement, input supply, terminal wiring, DIN-rail mounting and signal contact use against the original power supply label and automation load list.

Applications

WEIDMULLER PRO MAX 70W is used in industrial automation control panels, PLC and I/O cabinets, sensor and actuator supply, relay and solenoid valve powering, instrumentation, communication and fieldbus devices, machine tools, production lines, packaging machines, conveyors, material handling, pumps and fans, process equipment, water and wastewater, utilities, building automation and general 5 V DC control circuits. In existing PROmax power supply installations, the unit serves as a direct replacement switched-mode power spare matched to the original DIN-rail mounting, output voltage, current capacity and cabinet wiring arrangement.