Delta M50A-260 Installation And Operation Manual page 2

This manual applies to the inverter models:
●
M50A_260 (Delta part number RPI503M260000, product
version L and M)
and DSS software version 6.0 or higher
The Delta part number can be found on the type plate of the
inverter.
Delta manuals undergo continuous revision in order to provide
you with complete information regarding the installation and oper-
ation of its inverters. Therefore, before starting installation work,
always consult solarsolutions.delta-emea.com
a newer version of the Quick Installation Guide or the Installation
and Operation Manual is available.
© Copyright – Delta Electronics (Netherlands) B.V. – All rights
reserved.
This manual is intended for use by electrical installers who are
trained and approved for installation and commissioning of
grid-connected solar inverters.
The information in this manual is to be treated as confidential and
no part of this manual may be reproduced without prior written
permission from Delta Electronics. The information in this manual
may not be used for any purpose not directly connected to the
use of the inverter.
Information about the versions of this manual
Version Date
1.0 2021-04-23
1.1 2021-10-21
1.2 2022-12-06
1.3 2023-03-30
2
to check whether
Changes
First edition for product versions L or M.
Recommended size of the upstream circuit breaker:
Changed from 160 A to 125 A.
AC cable specification:
Information on cable diameters and conductor cross-sections corrected.
Information on torques added.
Dimensional drawings supplemented by additional dimensions.
Tightening torque of the hexagon socket screws for the L1, L2, L3 and N connections of the AC termi-
nal block corrected.
Incorrect descriptions in sections „5.5.3 Arrangement of the DC inputs on the DC connection panel",
page 42 and „5.5.4 Functioning of integrated string monitoring", page 42 corrected.
Section „7.3 Unpacking the inverter", page 54 added.
All information and specifications can be modified without prior
notice.
All translations of this manual that are not authorized by Delta
Electronics (Netherlands) B.V. must be marked with the words
"Translation of the original operating instructions."
Delta Electronics (Netherlands) B.V.
Tscheulinstraße 21
79331 Teningen
Germany
Authorized representative for this product in the EU:
Delta Electronics (Netherlands) B.V.
Zandsteen 15
2132 MZ Hoofddorp
Netherlands
Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14