Mean Well RSP-1000-48 Power Supply 1008W 48V

Name: Mean Well RSP-1000-48 Power Supply 1008W 48V 21A
Brand: Mean Well
SKU: RSP-1000-48
Price: 271.44 USD
Availability: InStock

Overview

RSP-1000-48 is the 48V output model of this series: rated current 21A, rated power 1008W, typical efficiency 90%.

RSP-1000 is a 1KW single output enclosed type AC/DC power supply with 1U low profile. This series operates for 90~264VAC input voltage and offers the models with the DC output mostly demanded from the industry. Each model is cooled by the built-in fan with fan speed control, working for the temperature up to 60℃. Moreover, RSP-1000 provides vast design flexibility by equipping various built-in functions such as the output programming, active current sharing, remote ON-OFF control, auxiliary power, etc.

Features

Universal AC input / Full range
Built-in active PFC function
High efficiency up to 90%
Forced air cooling by built-in DC fan
Output voltage programmable
Active current sharing up to 4000W (3+1)
Built-in remote ON-OFF control / remote sense / auxiliary power / DC OK signal
Protections: Short circuit / Overload / Over voltage / Over temperature
Optional conformal coating
5 years warranty

Specifications

RSP-1000-48Specifications from the official datasheet (2024-12-23 edition)

OUTPUT

DC VOLTAGE: 48V
RATED CURRENT: 21A
CURRENT RANGE: 0 ~ 21A
RATED POWER: 1008W
RIPPLE & NOISE (max.)^Note.2: 150mVp-p
VOLTAGE ADJ. RANGE: 43 ~ 55V
VOLTAGE TOLERANCE^Note.3: ±1.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±0.5%
SETUP, RISE TIME: 300ms, 50ms at full load
HOLD UP TIME (Typ.): 16ms/230VAC 16ms/115VAC at full load

INPUT

VOLTAGE RANGE^Note.4: 90 ~ 264VAC 127 ~ 370VDC
FREQUENCY RANGE: 47 ~ 63Hz
POWER FACTOR (Typ.): 0.95/230VAC 0.98/115VAC at full load
EFFICIENCY (Typ.): 90%
AC CURRENT (Typ.): 12A/115VAC 6A/230VAC
INRUSH CURRENT (Typ.): 25A/115VAC 40A/230VAC
LEAKAGE CURRENT: <2.0mA / 240VAC

PROTECTION

OVERLOAD: 105 ~ 125% rated output power Protection type : Constant current limiting, recovers automatically after fault condition is removed
OVER VOLTAGE: 56.6 ~ 66.2V Protection type : Shut down o/p voltage, re-power on to recover
OVER TEMPERATURE: Shut down o/p voltage, recovers automatically after temperature goes down

FUNCTION

OUTPUT VOLTAGE PROGRAMMABLE(PV): Adjustment of output voltage is allowable to 40 ~ 110% of nominal output voltage. Please refer to the Function Manual.
CURRENT SHARING: Up to 4000W or (3+1) units. Please refer to the Function Manual.
AUXILIARY POWER: 5V @ 0.5A (+5%, -8%)
REMOTE ON-OFF CONTROL: Power ON : short Power OFF : open. Please refer to the Function Manual.
REMOTE SENSE: Compensate voltage drop on the load wiring up to 0.5V. Please refer to the Function Manual.
DC OK SIGNAL: The TTL signal out, PSU turn on = 0 ~ 1V ; PSU turn off = 3.3 ~ 5.6V. Please refer to the Function Manual.

ENVIRONMENT

WORKING TEMP.: -20 ~ +60℃ (Refer to "Derating Curve")
WORKING HUMIDITY: 20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY: -40 ~ +85℃, 10 ~ 95% RH non-condensing
TEMP. COEFFICIENT: ±0.02%/℃ (0 ~ 50℃)
VIBRATION: 10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDS: UL62368-1, CSA C22.2 No. 62368-1, TUV BS EN/EN62368-1, CCC GB4943.1, BSMI CNS15598-1, AS/NZS62368.1, IS13252(Part1)/IEC60950-1, EAC TP TC 004 approved
WITHSTAND VOLTAGE: I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC
ISOLATION RESISTANCE: I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION: Parameter Standard Test Level

Conducted BS EN/ EN55032 (CISPR32), CNS15936 Class B
Radiated BS EN/ EN55032 (CISPR32), CNS15936 Class A
Harmonic Current BS EN/ EN61000-3-2
Voltage Flicker BS EN/ EN61000-3-3
EMC IMMUNITY: BS EN/EN55035, BS EN/EN61000-6-2, CCC GB17625.1, GB/T9254, BSMI CNS13438

Parameter Standard Test Level

ESD BS EN/ EN61000-4-2 Level 3, 8KV air; Level 2, 4KV contact
Radiated BS EN/ EN61000-4-3 Level 3
EFT / Burst BS EN/ EN61000-4-4 Level 3
Surge BS EN/ EN61000-4-5 Level 4, 4KV/Line-Earth; Level 3, 2KV/Line-Line
Conducted BS EN/ EN61000-4-6 Level 3
Magnetic Field BS EN/ EN61000-4-8 Level 4
Voltage Dips and Interruptions BS EN/ EN61000-4-11 >95% dip 0.5 periods, 30% dip 25 peniods, >95% interruptions 250 periods

Parameter	Standard	Test Level
Conducted	BS EN/ EN55032 (CISPR32), CNS15936	Class B
Radiated	BS EN/ EN55032 (CISPR32), CNS15936	Class A
Harmonic Current	BS EN/ EN61000-3-2
Voltage Flicker	BS EN/ EN61000-3-3

Parameter	Standard	Test Level
ESD	BS EN/ EN61000-4-2	Level 3, 8KV air; Level 2, 4KV contact
Radiated	BS EN/ EN61000-4-3	Level 3
EFT / Burst	BS EN/ EN61000-4-4	Level 3
Surge	BS EN/ EN61000-4-5	Level 4, 4KV/Line-Earth; Level 3, 2KV/Line-Line
Conducted	BS EN/ EN61000-4-6	Level 3
Magnetic Field	BS EN/ EN61000-4-8	Level 4
Voltage Dips and Interruptions	BS EN/ EN61000-4-11	>95% dip 0.5 periods, 30% dip 25 peniods, >95% interruptions 250 periods

OTHERS

MTBF: 939.4K hrs min. Telcordia SR-332 (Bellcore) ; 116.5K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 295*127*41mm (L*W*H)
PACKING: 1.95Kg; 6pcs/12.7Kg/1.15CUFT

Test conditions and notes6

1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.
3. Tolerance : includes set up tolerance, line regulation and load regulation.
4. Derating may be needed under low input voltages. Please check the derating curve for more details.
5. The power supply is considered a component which will be installed into a final equipment. All the EMC tests are been executed by mounting the unit on a 360mm*360mm metal plate with 1mm of thickness. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to "EMI testing of component power supplies." (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf)
6. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).

Technical drawings

RSP-1000-48 Block Diagram — Block Diagram

RSP-1000-48 Static Characteristics — Static Characteristics

RSP-1000-48 Derating Curve — Derating Curve

RSP-1000-48 Function Manual — Function Manual

RSP-1000-48 either an EXTERNAL VOLTAGE or an EXTERNAL RESISTANCE. — either an EXTERNAL VOLTAGE or an EXTERNAL RESISTANCE.

RSP-1000-48 OUTPUTVOLTAGE(%) — OUTPUTVOLTAGE(%)

RSP-1000-48 R S P - 1 0 0 0 series — R S P - 1 0 0 0 series

RSP-1000-48 R S P - 1 0 0 0 series (2) — R S P - 1 0 0 0 series (2)

RSP-1000-48 Mechanical Specification — Mechanical Specification

RSP-1000-48 Installation Manual — Installation Manual

Typical applications

Factory control or automation apparatus
Test and measurement instrument
Laser related machine
Burn-in facility
RF application

Downloads

Certificates4

UL Certificate (RSP-1000)(EN) PDF Download

CB Certificate (RSP-1000)(EN) PDF Download

TUV Certificate (RSP-1000)(EN) PDF Download

EMC Certificate (RSP-1000)(EN) PDF Download

Test reports1

Test Report (RSP-1000-48)(EN) PDF Download

Catalogues2

Mean Well Catalog (Industrial) PDF Download

Mean Well Sign Panel Catalog PDF Download

FAQ

What 48V industrial or telecom loads can the RSP-1000-48 support?

The RSP-1000-48 delivers 48V at 21A (1008W) and is appropriate for 48V DC bus applications including telecom power systems, industrial Ethernet backbone supplies, DC motor drives with 48V input, and high-power PoE switching infrastructure. The 90–264VAC input supports all standard single-phase supplies worldwide.

Can the RSP-1000-48 be used in parallel for redundancy?

Yes. The RSP-1000-48 supports active current sharing (3+1). Up to three units can operate in parallel, providing up to 63A at 48V, with a fourth unit in hot standby for N+1 redundancy. Load balancing across paralleled units is automatic.

How does the RSP-1000-48 compare to the RSP-1000-24 at the two dominant telecom voltages?

The RSP-1000-24 delivers 24V at 40A (960W) while the RSP-1000-48 delivers 48V at 21A (1008W). Both share the 295.0 × 127.0 × 41.0 mm chassis, 90–264VAC input, -20°C to +60°C range, and 5-year warranty. The 48V variant produces slightly more total wattage at half the current of the 24V model.

What environmental limits apply to the RSP-1000-48?

The RSP-1000-48 is rated from -20°C to +60°C ambient with no IP rating. It must be installed in an enclosure suited to the deployment environment. The -20°C lower limit provides adequate cold-weather start for most indoor industrial environments but may require enclosure heating in extreme cold locations.

What efficiency level does the RSP-1000-48 achieve?

The RSP-1000-48 features built-in active PFC and achieves efficiency up to 91%. At full 1008W output, input power is approximately 1108W with approximately 100W dissipated as heat, which is a favorable thermal load for a 1kW-class supply.

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Mean Well RSP-1000-48 Power Supply 1008W 48V 21A

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