Image shown is a representation only. Exact specifications should be obtained from the product datasheet.

Mean Well NHDD-40-100W 36W 100mA 360-400VDC Constant Current Driver - Wired Type

constant currentfor DC 380V busfully encapsolatedwire type

SKU NHDD-40-100W

Log in to see price Trade pricing & online ordering for account holders

Available to order

Overview

NHDD-40-100W is the model of this series: rated power 35W (typical), typical efficiency 94%. Type W: Wire style.

NHDD-40 series is a DC/DC LED driver. It operates from 360 ~ 420VDC and offers constant current output. Thanks to the efficiency up to 94%, with the fanless design, the NHDD-40 is able to operate for -30℃~+90℃ case temperature under free air convection. In addition,NHDD is a paritcular design for DC 380V Bus lighting application which can be combination with storang. This coincides with the developing trend that countries around the world have begun to implement of energy saving and carbon neutrality, how to combine renewable energy sources, and effectively integrate DC power grid and energy storage systems. MEAN WELL will continue to provide products corresponding with this goal in order to reduce the loss in the power conversion and create new DC power grid lighting applications.

Features

Constant Current mode output
For DC 380V Bus lighting application
Driver on Board (DOB) Solution available
Plastic housing and Fully encapsulated
Built-in PWM and Remote ON/OFF control
Protections：Short circuit/Over temperature
5 years warranty

Specifications

NHDD-40-100WSpecifications from the official datasheet (2024-10-16 edition)

OUTPUT

CURRENT LEVEL: 100mA
RATED POWER: 35W (typical)
DC VOLTAGE RANGE^Note.7: 350V (typical)
CURRENT RIPPLE: 40% max. @rated current
CURRENT TOLERANCE: ±15%
SETUP TIME^Note.3: 500ms / 380VDC

INPUT

VOLTAGE RANGE^Note.7: 360 ~ 420VDC(typical 380VDC) (Please refer to "STATIC CHARACTERISTIC" section)
EFFICIENCY (Typ.)^Note.4: 94%
DC CURRENT (Typ.): 0.1A/380VDC

PROTECTION

SHORT CIRCUIT: Hiccup mode, recovers automatically after fault condition is removed
OVER TEMPERATURE: Tj 150℃ typically(IC1) detect on main control IC Protection type: Shut down, recovers automatically after temperature goes down
REVERSE POLARITY: No damage
UNDER INPUT VOLTAGE: The input voltage is less than 359V ,the driver will be shut down.

FUNCTION

PWM DIMMING: Please refer to "DIMMING OPERATION" section
REMOTE ON/OFF: Power ON: Leave it open or PWM DIM PIN>1.5~5VDC, Power OFF: PWM DIM PIN <0.9VDC or short
POWER FREQUENCY: 100~1K Hz
QUIESCENT INPUT CURRENT IN SHUTDOWN MODE(MAX.): 2mA at PWM dimming off at 380V input.

ENVIRONMENT

WORKING TEMP.: Tcase=-30 ~ +40℃ (Please refer to " OUTPUT LOAD vs TEMPERATURE" section)
MAX. CASE TEMP.: Tcase=+90℃
WORKING HUMIDITY: 20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY: -40 ~ +80℃, 10 ~ 95% RH
TEMP. COEFFICIENT: ±0.03%/℃ (0 ~ 50℃)
VIBRATION: 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes
SOLDERING TEMPERATURE: Wave soldering: 265℃,5s (max.); Manual soldering: 390℃,3s (max.)

SAFETY & EMC

SAFETY STANDARDS: LVD BS EN/EN61347 and EAC TP TC004 approved
EMC EMISSION^Note.6: Compliance to BS EN/EN55015, EAC TP TC 020
EMC IMMUNITY: Compliance to BS EN/EN61000-4-2,3,4,6,8, light industry level, criteria A, EAC TP TC 020

OTHERS

MTBF: 15362.0K hrs min. Telcordia SR-332 (Bellcore) 2779.1Khrs min. MIL-HDBK-217F (25℃)
DIMENSION: 32.1*20.5*12.5mm or 1.26"*0.8"*0.49" inch (L*W*H)
WEIGHT: NHDD: 15.6g; NHDD-W: 18g (Please refer to Page 6 for packing)
POTTING MATERIAC: Expoxy(UL94-V0)

MODEL ENCODING

Blank: Pin style
W (this model): Wire style

Test conditions and notes7

1. All parameters NOT specially mentioned are measured at 380VDC input, rated current and 25℃ of ambient temperature.
2. De-rating may be needed under low input voltages. Please refer to “STATIC CHARACTERISTIC” sections for details.
3. Length of set up time is measured at first cold start. Turning ON/OFF the driver may lead to increase of the set up time.
4. Efficiency is measured at 100mA/380VDC.
5. The power supply is regarded as a part of the components in the system, and the final EMI test needs to be tested with the final device. If an additional EMI filter circuit is required to meet the electromagnetic compatibility requirements, please refer to the EMC test report for details. (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).
7. Please evaluate this notice carefully to prevent high unexpected output current. Output voltage and total forward voltage of LED must step down at least 40VDC from input voltage. Maximum step down voltage should not exceed 80VDC.

Technical drawings

NHDD-40-100W PWM Dimming Control — PWM Dimming Control

NHDD-40-100W ◎ Dimming and ON/OFF control diagram — ◎ Dimming and ON/OFF control diagram

NHDD-40-100W Mechanical Specification — Mechanical Specification

NHDD-40-100W DC House -DC lighting concept — DC House -DC lighting concept

NHDD-40-100W Application diagram — Application diagram

Typical applications

Downloads

Datasheet1

NHDD-40-100W datasheetNHDD-40-SPEC.PDF · 2024-10-16 edition PDF Download

Certificates3

Mean Well NHDD-40 CE-dec Certificate PDF Download

Mean Well NHDD-40 UK-dec Certificate PDF Download

Mean Well EAC Certificate PDF Download

Test reports1

Mean Well NHDD-40-100 Test Report PDF Download

FAQ

What type of LED driver is the Mean Well NHDD-40-100?

The Mean Well NHDD-40-100 is a constant current DC/DC LED driver designed for DC 380V bus lighting applications. This model delivers 100mA rated current and is intended for high-voltage LED systems that need a regulated constant current output.

What are the output characteristics of the NHDD-40-100?

This model is rated at 35W (typical) and 100mA, with an output voltage around 350VDC (typical). It operates from a 360-420VDC input range and is built for constant current performance rather than constant voltage output.

Is the NHDD-40-100 suitable for DC 380V bus lighting systems?

Yes. The NHDD-40 series is specifically described for DC 380V bus lighting applications, including systems that may be combined with green energy storage or intelligent lighting setups. That makes this model a targeted choice for commercial or industrial DC lighting architectures.

Does the Mean Well NHDD-40-100 support dimming or control functions?

Yes. This model includes PWM dimming capability and also supports remote ON/OFF control. Those features make it suitable for lighting systems that need external control beyond fixed-output operation.

What environmental and durability features does this driver offer?

The NHDD-40-100 uses a fan-less design with plastic, fully encapsulated housing, which supports reliable operation in demanding environments. It is rated for operation from -30°C to 40°C ambient and includes short circuit and over temperature protection.

What makes the NHDD-40-100 different from a general-purpose LED driver?

This model is differentiated by its DC/DC design for 360-420VDC systems and its focus on DC 380V bus lighting applications. It also combines high efficiency, up to 94%, with PWM dimming, remote ON/OFF control, and a compact lightweight form factor.

What warranty comes with the Mean Well NHDD-40-100?

The NHDD-40-100 includes a 5-year warranty from Mean Well. That warranty period is consistent with its positioning as a professional LED driver for long-term lighting use.

Payment & Security

Payment methods

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Model	Power	Voltage	Current	IP Rating
Mean Well NHDD-40-100 36W 100mA 360-400VDC Constant Current Driver - Pin Type	35W	355V	100 Milliampere	IP20	View

Please log in to write a review.

{ "id":8420993564971, "variants" :[{ "context":"default", "variant_id": 45622337667371, "sku":"NHDD-40-100W", "inventory_qty" : 0, "customer" :false, "custom_html" :"\u003ca class=\"text-current logged-out-price logged-out\" href=\"https:\/\/wellforces.co.nz\/customer_authentication\/redirect?locale=en\u0026region_country=NZ\"\u003e\n \u003cspan \u003ePlease \u003c\/span\u003e \u003cspan class=\"login-text\"\u003eLogin\u003c\/span\u003e \u003cspan\u003e for Pricing\u003c\/span\u003e\n \u003c\/a\u003e", "volume_html" :"\u003cvolume-pricing class=\"parent-display inside_product_form\" id=\"volume-pricing-main\" \u003e\u003c\/volume-pricing\u003e" } ] }