MEAN WELL NGE90I55-P1J is an NGE90 Class II wall-mounted AC/DC power adapter supplying 55 VDC at 1.64 A, rated 90.2 W, with a center-positive P1J DC plug. Universal I-type with interchangeable AC plug heads and non-folding pins. The main body and compatible AC inlet plug are ordered separately. Fit one approved interchangeable plug before use.
Product Datasheet
Download MEAN WELL NGE90 Datasheet (PDF)
The NGE90 section is on PDF pages 38, 39, 40, 41, 42, 43, 44. Refer to the complete mechanical drawings and notes when planning installation.
Model and Configuration
Complete order model
NGE90I55-P1J.
Series / voltage code
NGE90 series; code 55 denotes 55 VDC.
AC version
Universal I-type with interchangeable AC plug heads and non-folding pins.
Supply arrangement
The main body and compatible AC inlet plug are ordered separately. Fit one approved interchangeable plug before use.
Standard DC connector
P1J tuning-fork plug, center positive and outside negative; 5.5 mm OD × 2.1 mm ID × 11 ± 0.5 mm length.
Output Ratings
DC output voltage
55 VDC.
Rated current / current range
1.64 A rated; operating range 0–1.64 A.
Rated output power
90.2 W. Observe both rated current and power, with applicable derating.
Ripple and noise, maximum
240 mVp-p under the stated test conditions.
Voltage tolerance
±3%.
Line regulation
±1%.
Load regulation
±2%.
Efficiency, typical
92% under the general test conditions.
Input and Timing
Input range
80–264 VAC or 113–370 VDC; AC frequency 47–63 Hz.
AC current
1.8 A at 115 VAC; 0.9 A at 230 VAC.
Cold-start inrush, maximum
50 A at 115 VAC; 100 A at 230 VAC.
Touch current
Less than 100 µA RMS at 264 VAC.
Set-up / rise / hold-up, 230 VAC
1000 / 60 / 30 ms at full load.
Set-up / rise / hold-up, 115 VAC
1000 / 60 / 10 ms at full load.
No-load consumption
Less than 0.1 W.
Energy efficiency
Level VI. The catalogue also states design compliance with US DoE Level VII under docket EERE-2020-BT-STD-0006.
The series description lists EISA 2007/DoE, Canada NRCan, Australia and New Zealand MEPS, Korea KMEPS, EU ErP and CoC Version 5. Apply the regulatory scope relevant to the supplied regional version.
Protection
Short circuit / overload
Overload threshold: 105–160% of rated output power. Output shutdown and latch-off; reapply input power to recover.
Overvoltage
60.5–74.2 V; output shutdown, reapply input power to recover.
Operating Conditions and Derating
Operating temperature
−30 to +70°C, subject to the derating curve.
Ambient-temperature curve
100% load from −30 to +40°C; marked points are 70% at +55°C and 50% at +70°C. Follow the plotted curve between the marked points.
Input-voltage curve
At 60 Hz: 80% load at 80 VAC, rising to 100% at 100 VAC; 100% from 100 to 264 VAC.
Additional low-temperature limit
For this 55 V model at 80 VAC: reduce load to 60% at −20°C and 35% at −30°C. These limits apply in addition to the general input and temperature curves.
Working humidity
20–90% RH, non-condensing.
Storage temperature / humidity
−20 to +85°C; 10–95% RH, non-condensing.
Temperature coefficient
±0.03%/°C over 0–45°C.
Vibration
10–500 Hz, 2 G; 10 minutes per cycle and 60 minutes each along X, Y and Z axes.
Apply the most restrictive input, ambient-temperature and model-specific load limits. The maximum working temperature is not a full-load rating.
Mechanical Details and Cable
Main-body dimensions
62 × 30 × 85.5 mm, as listed in the catalogue dimension table. The body is 30 mm thick; allow additional clearance for AC pins or an interchangeable plug head.
DC cable
UL1185 16 AWG, 1200 ± 50 mm for this voltage model.
Drawing tolerance
Mechanical drawing dimensions in millimetres, general tolerance ±1 mm unless otherwise marked.
Catalogue main-body weight
217 g; explicit catalogue packing reference per main body, not a measured net or shipping weight.
Refer to PDF page 42 for the exact body, cable and AC-pin arrangement.
Separately Ordered AC Plugs
AC PLUG-EU4
European.
AC PLUG-US4
US.
AC PLUG-UK4
UK.
AC PLUG-AU4
Australian.
AC PLUG-CN4
Chinese.
AC PLUG-KR4
Korean.
AC PLUG-IN4
Indian.
AC PLUG-MIX4
EU, US, UK, AU and CN five-type set.
AC PLUG-MIX5
EU, US, UK, AU, CN, KR and IN seven-type set.
Use only the NGE I-type interface. The listed plug accessories fit NGE12I / NGE18I / NGE30I / NGE45I / NGE65I / NGE90I; they do not convert E-type or U-type bodies.
Slide the selected AC head along the guide rail between the metal prongs until it clicks into the locked position. Check that it is secure and correctly fitted before use. The adapter body and plug head are separate orders.
Safety and Application Scope
Construction
Class II power supply without an earth pin or functional ground; enclosed 94V-0 flame-retardant plastic body.
Medical application
2 × MOPP (means of patient protection) and suitability for BF-type applications, subject to the complete equipment evaluation.
Ingress protection
IP21.
Withstand voltage
Input to output: 4000 VAC.
Insulation resistance
Input to output: 100 MΩ at 500 VDC, 25°C and 70% RH.
Core safety standards
CB: IEC62368-1, IEC60601-1/-1-11, IEC61558-1/-2-16 and IEC60335-1. DEKRA: corresponding BS EN/EN62368-1, 60601-1/-1-11, 61558-1/-2-16 and 60335-1.
North American standards, applicable versions
UL62368-1; CSA C22.2 No. 62368-1; ANSI/AAMI ES60601-1/-1-11 (3.2 version); CAN/CSA-C22.2 No. 60601-1/-1-11. The additional ANSI/AAMI ES60601-1-11 and CAN/CSA-C22.2 No. 60601-1-11 line is identified for U-type only.
Other regional listings, applicable versions
PSE J62368-1; BSMI CNS15598-1; RCM AS/NZS 62368.1 and AS/NZS 61558.1/.2.16; EAC TP TC 004; CCC GB4943.1; KC KC62368-1; BIS IS13252 (Part 1):2010 / IEC60950-1:2005.
The I-type certificate panel shows CB, DEKRA, PSE, UL/cUL, RCM, CCC, BSMI, UL medical recognition, EAC, KC, BIS, CE, UKCA and FCC marks.
The multi-field listings describe the adapter and apply by version and approval scope. They do not certify the connected medical device or complete installation; check the applicable product label and equipment-level requirements.
EMC
Conducted and radiated emissions
Class B: BS EN/EN55032 (CISPR32), EN55011, FCC Part 15, CNS15936, GB/T 9254.1-2021 and KS C 9832.
Harmonic current
BS EN/EN61000-3-2, Class A.
Immunity framework
BS EN/EN55035 (CISPR35), BS EN/EN60601-1-2 (IEC60601-1-2) and KS C 9835.
ESD
BS EN/EN61000-4-2: Level 4, 15 kV air; Level 4, 8 kV contact.
RF field
BS EN/EN61000-4-3: Level 2, 3 V/m.
EFT bursts
BS EN/EN61000-4-4: Level 3, 2 kV.
Surge
BS EN/EN61000-4-5: Level 3, 1 kV line-to-neutral.
Conducted RF
BS EN/EN61000-4-6: Level 2, 3 V.
Magnetic field
BS EN/EN61000-4-8: Level 2, 3 A/m.
Voltage dips and interruptions
BS EN/EN61000-4-11: >95% dip for 0.5 period, 30% dip for 25 periods, and >95% interruption for 250 periods.
The power supply is an independent unit; the final equipment must still be assessed for compliance with EMC directives.
Optional DC Connectors and Quick Adapters
Tuning-fork plugs
P1I: 5.5 / 2.1 / 9.5; P1L: 5.5 / 2.5 / 9.5; P1M: 5.5 / 2.5 / 11; P1IR: 5.5 / 2.1 / 9.5; P1JR: 5.5 / 2.1 / 11; P1LR: 5.5 / 2.5 / 9.5; P1MR: 5.5 / 2.5 / 11 mm (outside diameter / inside diameter / length). R-suffix codes are right-angled; the others are straight. Quick adapters: 7.5 A maximum.
Barrel plugs
P2I: 5.5 / 2.1 / 9.5; P2J: 5.5 / 2.1 / 11; P2L: 5.5 / 2.5 / 9.5; P2M: 5.5 / 2.5 / 11; P2IR: 5.5 / 2.1 / 9.5; P2JR: 5.5 / 2.1 / 11; P2LR: 5.5 / 2.5 / 9.5; P2MR: 5.5 / 2.5 / 11 mm (outside diameter / inside diameter / length). R-suffix codes are right-angled; the others are straight. No quick adapter is listed.
Locking plugs
P2S (S761K): 5.53 / 2.03 / 12.06; P2K (761K): 5.53 / 2.54 / 12.06; P2C (S760K): 5.53 / 2.03 / 9.52; P2D (760K): 5.53 / 2.54 / 9.52 mm (outside diameter / inside diameter / length). SWITCHCRAFT original or equivalent; no quick adapter is listed.
Minimum-pin plugs
P3A: 2.35 / 0.7 / 11; P3B: 4.0 / 1.7 / 11; P3C: 4.75 / 1.7 / 11 mm (outside diameter / inside diameter / length). EIAJ equivalent; quick adapters: 5 A maximum.
Center-pin plugs
P4A: 5.5 / 3.4 / 11; P4B: 6.5 / 4.4 / 11; P4C: 7.4 / 5.1 / 11 mm (outside diameter / inside diameter / length). Center-pin diameters: P4A 1.0 mm, P4B 1.4 mm, P4C 0.6 mm. EIAJ equivalent; quick adapters: 7.5 A maximum.
R6B, locking 3-pin male
KYCON KPPX-3P equivalent; pins 1 and 3 = +Vo, pin 2 = −Vo. Quick adapter: 7.5 A maximum.
R7B, locking 4-pin male
KYCON KPPX-4P equivalent; pins 1 and 4 = +Vo, pins 2 and 3 = −Vo. Quick adapter: 7.5 A maximum.
Stripped and tinned leads
Lead 1 (ribbed) = +Vo; lead 2 (lettered) = −Vo. Standard illustrated lengths: L = 25 mm and L1 = 10 mm; other lengths by request. No quick adapter is listed.
The listed order model has the standard P1J plug. An optional connector can be factory-customized subject to a minimum order quantity. Quick adapters are separate accessories with no minimum order quantity, and are available only where the table lists them.
An adapter does not increase the supply rating. Match voltage, polarity, mating dimensions and the lowest current rating of the supply, cable and connectors. Optional parts are not automatically included.
Measurement Conditions and Reliability
General test conditions
230 VAC input, rated load, 25°C and 70% RH unless otherwise stated.
Output-voltage setting
Measured at the DC plug terminals at 50% load.
Ripple / noise test
20 MHz bandwidth, using a 12-inch twisted pair terminated with 0.1 µF and 47 µF capacitors.
Regulation tests
Line regulation: low-to-high input at rated load. Load regulation: 0–100% rated load. Voltage tolerance includes set-up tolerance, line regulation and load regulation.
MTBF, minimum
605.3 thousand hours, MIL-HDBK-217F at 25°C; 5120.6 thousand hours, Telcordia TR/SR-332 (Bellcore) at 25°C.
Manufacturer warranty
3 years, subject to manufacturer warranty terms.
Catalogue revision / pages
2026-01-14; combined PDF pages 38–44.
Application examples include consumer electronics, telecommunications, office, industrial, medical and household equipment. The NGE90 application list also includes PoE power-sourcing equipment. Select the correct DC voltage, polarity, regional mains version and current capacity for the equipment.
Read
more
less