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Mean Well NSP-1600-48 1608W 48V Compact Power Supply 33.5A

Name: Mean Well NSP-1600-48 1608W 48V Compact Power Supply 33.5A
Brand: Mean Well
SKU: NSP-1600-48
Price: 389.53 USD
Availability: InStock

built-in active PFCefficiency up to 92.5%1U low profilehigh power density up to 25W/inch³

SKU NSP-1600-48

$389.53 USD

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NSP-1600-48

NSP-1600-48 1600W 48V Backorder$389.53 USD

NSP-3200-48 3200W 48W Backorder$548.14 USD

Product variants

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Overview

NSP-1600-48 is the 48V output model of this series: rated current 33.5A, rated power 1608W, typical efficiency 92.5%.

NSP-1600 is a 1.6KW single output enclosed type AC/DC power supply with a 1U low profile and a high power density up to 25W/inch³. 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 thermostatically controlled fan. Moreover, NSP-1600 provides vast design flexibility by equipping various built-in functions such as the output programming, remote ON-OFF control, auxiliary power, etc.

Features

90~264Vac input with PFC
Output voltage 40~125% programmable (15~125% by request)
Built-in CANBus protocol
-20~+70℃ wide range operation temperature
Built-in constant current limiting circuit
High efficiency up to 92.5%
Built-in remote ON-OFF control / Remote Sense / 12Vaux power / DC OK signal / OTP alarm signal
Built-in intelligent fan speed control
Protections: Short circuit / Overload / Over voltage / Over temperature
Design refer to SEMI F47 at 200Vac
5 years warranty

Specifications

NSP-1600-48Specifications from the official datasheet (2026-06-15 edition)Download datasheet PDF

OUTPUT

DC VOLTAGE: 48V
RATED CURRENT: 33.5A
CURRENT RANGE: 0 ~ 33.5A
RATED POWER: 1608W
RIPPLE & NOISE (max.)^Note.2: 300mVp-p
VOLTAGE ADJ. RANGE: 47.5 ~ 58.8V
VOLTAGE TOLERANCE^Note.3: ±1.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±0.5%
SETUP, RISE TIME: 1500ms, 60ms/230Vac at full load
HOLD UP TIME (Typ.): 16ms / 230Vac at 70% load 10ms / 230Vac at full load

INPUT

VOLTAGE RANGE^Note.4: 90 ~ 264Vac 250 ~ 400Vdc
FREQUENCY RANGE: 47 ~ 63Hz
POWER FACTOR (Typ.): 0.97/230Vac at full load
EFFICIENCY (Typ.): 92.5%
AC CURRENT (Typ.)^Note.4: 15A/115Vac 8.5A/230Vac
INRUSH CURRENT (Typ.): COLD START 35A/230Vac
LEAKAGE CURRENT: <2mA / 230Vac

PROTECTION

OVERLOAD: 105 ~ 115% rated output power Protection type : Constant current limiting, unit will shut down o/p voltage after 5 sec. After O/P voltage falls, re-power on to recover
OVER VOLTAGE: 63 ~ 75V 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 ~ 125%(12V: 60~125%) of nominal output voltage ; 15~125% by request . Please refer to the Function Manual.
REMOTE CONTROL: By electrical signal or dry contact Power ON:short Power OFF:open. Please refer to the Function Manual
REMOTE SENSE: Compensate voltage drop on the load wiring up to 0.5Vdc. Please refer to the Function Manual
AUXILIARY POWER: 12Vaux @ 0.8A
ALARM SIGNAL: Isolated signal output for T-alarm and DC OK
CANBus INTERFACE: Communication provides functions such as control, setting and monitoring
FAN CONTROL^Note.6: Built-in intelligent fan speed control detect by PSU'S internal temperature
FAN NOISE (Typ.) 10% load with Ta=25℃^Note.6: 38dB
FAN NOISE (Typ.) 70% load with Ta=25℃^Note.6: 38dB

ENVIRONMENT

WORKING TEMP.: -20 ~ +70℃ (Refer to "Derating Curve")
WORKING HUMIDITY: 20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY: -40 ~ +85℃, 10 ~ 95% RH non-condensing
TEMP. COEFFICIENT: ±0.03%/℃ (0 ~ 50℃)
VIBRATION: 10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes

SAFETY & EMC (Note 7)

SAFETY STANDARDS: UL62368-1, CAN/CSA C22.2 No. 62368-1, TUV BS EN/EN62368-1, BSMI CNS15598-1, BIS IS 13252(Part 1):2010/ IEC 60950-1 : 2005 (except for 48V), AS/NZS62368.1, EAC TP TC 004 approved
WITHSTAND VOLTAGE: I/P-O/P:3KVac I/P-FG:2KVac O/P-FG:1.5KVac
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),CNS 15936 Class B(CISPR32)/Class A(CNS 15936)
Radiated BS EN/EN55032(CISPR32),CNS 15936 Class A(CISPR32 & CNS 15936)
Harmonic Current BS EN/EN61000-3-2 Class A
Voltage Flicker BS EN/EN61000-3-3
EMC IMMUNITY: BS EN/EN55024, BS EN/EN61000-6-2, BSMI CNS15598-1, design refer to SEMI F47 at 200Vac

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, 2KV/Line-Line 4KV/Line-Earth
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 periods, >95% interruptions 250 periods

Parameter	Standard	Test Level
Conducted	BS EN/EN55032(CISPR32),CNS 15936	Class B(CISPR32)/Class A(CNS 15936)
Radiated	BS EN/EN55032(CISPR32),CNS 15936	Class A(CISPR32 & CNS 15936)
Harmonic Current	BS EN/EN61000-3-2	Class A
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, 2KV/Line-Line 4KV/Line-Earth
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 periods, >95% interruptions 250 periods

OTHERS

MTBF: 684.7K hrs min. Telcordia SR-332 (Bellcore) ; 69.2K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 300*85*41mm (L*W*H)
PACKING: 1.8Kg;6pcs/11.3Kg/1.25CUFT

Test conditions and notes8

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. If use PV signal to adjust Vo, under certain operation conditions, ripple noise of Vo might go over rating defined in this specification.
6. FAN noise test set up according to ISO-7779.
7. 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 720mm*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)
8. 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

NSP-1600-48 Block Diagram — Block Diagram

NSP-1600-48 Static Characteristics — Static Characteristics

NSP-1600-48 Derating Curve — Derating Curve

NSP-1600-48 Function Manual — Function Manual

NSP-1600-48 3. Voltage Drop Compensation — 3. Voltage Drop Compensation

NSP-1600-48 Illustration (page 5) — Illustration (page 5)

NSP-1600-48 4. Alarm Signal Output — 4. Alarm Signal Output

NSP-1600-48 Mechanical Specification — Mechanical Specification

NSP-1600-48 Accessory List — Accessory List

NSP-1600-48 Installation Diagram — Installation Diagram

Typical applications

Downloads

Datasheet1

NSP-1600-48 datasheetNSP_1600_spec.pdf · 2026-06-15 edition PDF Download

FAQ

What is the output rating of the Mean Well NSP-1600-48?

The Mean Well NSP-1600-48 is a single-output enclosed AC/DC power supply rated for 48V DC output. It delivers up to 33.5A and has a total power rating of 1608W. This makes it suitable for high-power industrial systems that need a compact 48V supply.

What types of applications is the NSP-1600-48 typically used for?

This model is designed for industrial and high-reliability applications that require substantial 48V DC power in a compact enclosed form factor. Its 1U low-profile design and high power density can be useful where equipment space is limited. Buyers often evaluate it for OEM, automation, and other industrial power systems needing a robust 48V source.

Does the NSP-1600-48 support remote control or monitoring features?

Yes, the NSP-1600-48 includes built-in remote ON-OFF control, remote sense, auxiliary power, and a DC OK signal. It also supports programmable output voltage level adjustment. These features make it better suited for integrated equipment designs that need control and status feedback.

How efficient is the Mean Well NSP-1600-48?

The NSP-1600-48 is rated for 92.5% typical efficiency, the highest in the NSP-1600 series. It also includes built-in PFC, with a typical power factor of 0.97 at 230Vac full load, which is a useful feature for higher-power AC/DC power supplies in industrial environments. Together, these characteristics help distinguish it from lower-power or less optimized enclosed supply options.

What protections are included in the NSP-1600-48?

This model includes protection for short circuit, overload, over voltage, and over temperature conditions. These built-in safeguards are important in demanding industrial applications where power stability and equipment protection matter. Mean Well also backs this series with a 5-year warranty.

What operating temperature range is specified for the NSP-1600-48?

The specified operating temperature range for the NSP-1600-48 is -20°C to 70°C, with load derating at higher ambient temperatures per the derating curve. It uses forced-air cooling from a built-in fan with intelligent speed control based on the internal temperature. Buyers should consider this range when evaluating the unit for warmer industrial environments or enclosed equipment spaces.

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