1. INTRODUCTION
1.1 Prex
Dear customer, thank you for choosing the BDM-250 micro inverter from NEP.
We hope you will nd our products meet your need for renewable energy.
Meanme, we appreciate your feedback regarding our products.
1.2 Grid-ed PV System
Grid-ed PV system consists of PV panels, grid-ed inverter and juncon boxes.
The DC output from the PV panels is converted into AC energy and feedback to
the grid through the BDM-250. BDM-250 series PV micro inverter contains
isolaon transformer with basic insulaon between PV input and AC grid output.
The PV panel terminals on BDM-250 shall not be earthed via external wiring, for
BDM-250 connects PV panel to earth via an internal earth fault interrupng 1A
fuse.
1.3 Hw tUse This Manual
This manual provides detailed product informaon and installaon instrucons
for the BDM-250 micro solar inverter. Please read through this manual before
installaon and operaon.
WARNING: This indicates a situaon where failure to follow instrucons
may be a safety hazard or cause equipment malfuncon. Use extreme
cauon and follow instrucons carefully.
1.4 Label
The label is located on the side of the inverter. The informaon on the label
includes technical data as well as type, rmware version and serial number of the
device. Safety instrucons on the label are listed and explained below:
The term “danger” describes an issue which, if ignored can cause
personal injury.
With the term “aenon” a circumstance is listed which may
cause property damage if disregarded.
Under “Instrucons for Use“, it is pointed out that installaon and
operang instrucons are to be read and understood before
Under “Cauon, hot surface”, it should be noted that surfaces of
equipment may be hot and create a burn hazard.
Special disposal instrucons!
With “Note Separate Disposal”, it is pointed out that this product
may not be disposed of with normal garbage. An improperly
conducted disposal can lead to damage to the environment.
The product complies with essenal requirements of relevant
2. SAFETY INSTRUCTION
WARNING:
PLEASE READ THIS MANUAL BEFORE INSTALLATION. ANY DAMAGE TO THE PRODUCT DUE TO NOT
FOLLOWING THIS MANUAL IS NOT COVERED BY THE WARRANTEE.
ALL THE INSTALLATION SHOULD BE DONE BY CERTIFIED ELECTRICIAN.
BESIDES THE CABLE CONNECTORS, NOTHING INSIDE THE INVERTER SHOULD BE MODIFIED.
ALL INSTALLATION SHOULD FOLLOW THE LOCAL ELECTRIC CODES. FURTHER PROTECTION ON THE
AC WIRING FROM THE INVERTERS SHOULD BE PROVIDED AND MAY BE REQUIRED BY LOCAL AND
NATIONAL WIRING REGULATIONS. THIS PROTECTION IS LIKELY TO INCLUDE RESIDUAL CURRENT
DEVICES, EARTH FAULT MONITORS AND CIRCUIT BREAKERS. THIS PRODUCT MAY CAUSE AC
CURRENT WITH A DC COMPONENT. IF A RESIDUAL CURRENT-OPERATED PROTECTIVE DEVICE
(RCD) OR A MONITORING DEVICE (RCM) IS USED FOR PROTECTION IN CASE OF DIRECT OR
INDIRECT CONTACT, ONLY AN RCD OR RCM OF TYPE B IS ALLOWED ON THE AC SIDE OF THIS
PRODUCT.
NEVER DISCONNECT PV MODULE FROM THE MICRO-INVERTER WITHOUT FIRST ISOLATING THE AC
MAINS. ALL PV CONNECTORS AND AC CONNECTORS ARE FORBIDDEN TO BE DISCONNECTED
UNDER LOAD BEFORE SWITCHING OFF THE CIRCUIT BREAKER ON THE AC BRANCH.
PLEASE CONTACT AUTHORIZED SERVICE AGENTS FOR ANY SERVICE WORK.
BDM-250 IS A GRID-TIED SOLAR INVERTER. IT MAY REQUIRE APPROVAL FROM LOCAL UTILITY
COMPANY TO CONNECT IT TO THE POWER GRID.
BDM-250 DOES NOT INCLUDE COMPONENTS THAT CAN BE SERVED BY CUSTOMERS.
WARNING:
WHEN THE PHOTOVOLTAIC ARRAY IS EXPOSED TO LIGHT, IT SUPPLIES A DC
VOLTAGE TO THE MICRO-INVERTER.
3. FCC COMPLIANCE
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protecon against harmful interference in a residenal
installaon. This equipment generates uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instrucons, may
cause harmful interference to radio communicaons. However, there is no
guarantee that interference will not occur in a parcular installaon. If this
equipment does cause harmful interference to radio or television recepon,
which can be determined by turning the equipment oand on, the user is
encouraged to try to correct the interference by one or more of the following
measures:
●Reorient or relocate the receiving antenna.
●Increase the separaon between the equipment and the receiver.
●Connect the equipment into an outlet on a circuit dierent from that to
which the receiver is connected.
●Consult the dealer or an experienced radio/TV technician for help.
Changes or modicaons not expressly approved by the party responsible for
compliance may void the user’s authority to operate the equipment.
