Brand: Mean Well

Mean Well RST-5000-48 Three-Phase 5 kW Power Supply

Name: Mean Well RST-5000-48 Three-Phase Power Supply – Datasheet
Brand: Mean Well
SKU: RST-5000-48

Description

A 5 kW three-phase supply for heavy 48 V DC systems

The Mean Well RST-5000-48 converts a three-phase mains input into a regulated 48 V DC output rated at 105 A, a total of 5040 W. It belongs to the RST-5000 series of 5000 W single-output power supplies, which Mean Well lists in 24 V, 36 V and 48 V versions. At 48 V the typical efficiency is 91.5% with a power factor of 0.95 or better at full load, so the unit draws about 9 A per line from a 400 V supply.

Beyond fixed-output duty the series has several control functions: remote sense to compensate up to 0.3 V of wiring drop, output voltage programming between 20 and 120% of nominal, a programmable constant-current level, remote on-off, an auxiliary 12 V output and alarm signals for AC fail, DC OK, fan fail and over-temperature. Current sharing is specified for up to 20000 W or three plus one units.

Technical specifications

Parameter	Specification
Manufacturer / series	Mean Well, RST-5000
Model	RST-5000-48
DC output voltage / rated current	48 V / 105 A (0 to 105 A)
Rated power	5040 W
Voltage adjustment range	47 to 57.6 V, built-in potentiometer
Ripple and noise (max.)	200 mVp-p
Voltage tolerance	+/-1.0%
Line / load regulation	+/-0.5% / +/-0.5%
Setup, rise time	2200 ms, 80 ms at full load
Hold-up time (typ.)	20 ms at 230 VAC, 75% load; 14 ms at full load
Input voltage range	3-phase 3-wire (delta) 196 to 305 VAC; 3-phase 4-wire (star) 340 to 530 VAC
Frequency	47 to 63 Hz
Power factor (typ.)	0.95 at 230 VAC (400 VAC), full load
Efficiency (typ.)	91.5%
AC current (typ.)	15 A at 230 VAC (delta); 9 A at 400 VAC (star)
Inrush current (typ.)	75 A at 230 VAC; 50 A at 400 VAC
Overload protection	100 to 112% of rated power; continuous constant current limiting or limiting with shutdown after 5 s (user selectable)
Overvoltage protection	60 to 67.2 V, shut down; re-power to recover
Remote sense	Compensates up to 0.3 V of load wiring drop
Current sharing	Up to 20000 W or (3+1) units
Output voltage programming	20 to 120% of nominal
Constant current level programming	20 to 100% of rated current
Auxiliary output	12 V at 0.1 A, for remote on-off only
Alarm signals	AC fail, DC OK, fan fail, over-temperature
Working temperature	-30 to +70 C, with derating curve
Safety approvals listed	UL 62368-1, CAN/CSA C22.2 No. 62368-1, TUV EN 62368-1, EAC TP TC 004
Withstand voltage	Input-output 3 kVAC; input-FG 2 kVAC; output-FG 0.5 kVAC
EMC emission	EN 55032 conducted and radiated, Class A
Dimensions (L x W x H)	460 x 211 x 83.5 mm
Packing weight	10 kg (single unit)

Where a 48 V, 105 A source is used

A rail this size typically feeds DC distribution boards, battery charging or telecom-style 48 V bus systems, large drive DC links and test benches. When several RST units are paralleled for current sharing, follow the function manual for the sharing wire, and size the DC busbar and fuses for the combined current rather than for a single unit.

Input wiring and protection settings

The input specification differs by connection: 196 to 305 VAC for a three-wire delta feed and 340 to 530 VAC for a four-wire star feed, so confirm the supply configuration on site before ordering. Inrush is 75 A at 230 VAC, which affects upstream breaker choice. The overload behaviour can be set to hold constant current indefinitely or to shut down after 5 seconds; choose according to whether the load can ride through a sustained short or must be isolated. The derating curve and the function manual describe the remote control, programming and sharing pins in detail.

How the Mean Well RST-5000-48 works

The supply rectifies the three-phase mains input and corrects the power factor. A high-frequency stage then converts the power to a regulated 48 V DC output. The control circuit holds the voltage steady while the load changes. Remote sense moves the control point to the load terminals.

Where the RST-5000-48 is used

48 V DC systems with heavy loads
Telecom power plants
Industrial automation cabinets
Battery charging systems
Parallel power banks

Selection checklist for the RST-5000-48

Output voltage and current
Total load in watts
Three-phase input type, delta or star
Input voltage range
Need for current sharing
Remote control signals
Working temperature
Cabinet space

Installation, commissioning and maintenance notes for the RST-5000-48

Mount the supply with free air for the fan. Connect the three-phase input and the earth. Wire the 48 V output to the load. Set the output voltage with the potentiometer. Keep the fan intake free of dust and check the alarm signals.

Requesting a quotation for the Mean Well RST-5000-48

Please send the load, the input supply and the control signals you need. Seven Star LLC serves industrial customers in Oman and the GCC and replies with a quotation based on the information provided.

RST-5000-48 output

The output is 48 V DC at 105 A.

RST-5000-48 rated power

The rated power is 5040 W.

RST-5000-48 voltage adjustment

The output can be adjusted from 47 to 57.6 V.

RST-5000-48 efficiency

The typical efficiency is 91.5 percent.

RST-5000-48 power factor

The power factor is 0.95 at full load.

RST-5000-48 input range

The three-phase input runs from 196 to 305 VAC in delta and 340 to 530 VAC in star.

RST-5000-48 remote sense

Remote sense compensates up to 0.3 V of wiring drop.

RST-5000-48 current sharing

Current sharing works for up to 20000 W or three plus one units.

RST-5000-48 voltage programming

The output voltage can be programmed from 20 to 120 percent of nominal.

RST-5000-48 constant current

The constant current level is programmable.

RST-5000-48 auxiliary output

An auxiliary 12 V output supports remote on-off.

RST-5000-48 alarm signals

Alarm signals cover AC fail, DC OK, fan fail and over-temperature.

RST-5000-48 working temperature

It works from minus 30 to plus 70 degrees C, with derating.

Power supply records for the RST-5000-48

Record the output voltage, the load current and the alarm tests.

Choosing the right RST-5000-48 input wiring

Choose delta or star input wiring from the supply voltage on site.

Documents and quotation

The attached Mean Well file is the RST-5000 series specification with the model table, protection data and mechanical drawing. For a quotation on RST-5000-48, send the quantity, the three-phase supply voltage and wiring scheme, the DC load current including peaks, the ambient temperature and any approvals you need. Related supplies are listed under Power Modules.

Datasheets & Documents

Datasheet Mean Well RST-5000 series specification (EN) Download

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About brand

Mean Well is a Taiwanese manufacturer of standard power supplies, founded in 1982 and headquartered in New Taipei City. Seven Star LLC, an independent supplier in Muscat, lists Mean Well DIN rail, enclosed and DC-DC power supplies for control panels, automation equipment and electronics.

Mean Well power supply families

The catalogue covers DIN rail power supplies from 15 W to several hundred watts in single-phase and three-phase versions, enclosed chassis supplies with fan or convection cooling, medical-standard supplies, DIN rail DC-DC converters and many other formats. Each series has a datasheet that lists all output voltages, derating curves and approvals. The standard catalogue format suits machine builders, panel builders and maintenance teams that need a documented, replaceable supply rather than a custom design.

Ordering Mean Well power supplies: what we need

State the exact model code, the output voltage and current, the mains or DC input range and frequency, the mounting style, the cabinet temperature and any approvals required, so the correct variant can be quoted.