Instruction Sheet
SOLARLOK* Combiner Box Assemblies
408--10271
LOC B
E
2011 Tyco Electronics Corporation, a TE Connectivity Ltd. Company
All Rights Reserved
*Trademark
TE Connectivity, TE connectivity (logo), and TE (logo) are trademarks. Other logos, product and/or Company names may be trademarks of their respective owners.
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www.te.com
1
of 5
03 MAY 11 Rev D
1954283- 1 and 1954283- 2
Figure 1
Mounting Slot
(4 Places)
Front Top
Front Top
Knockout
(4 Places)
Lock
Tab
Cover Screws
(4 Places)
Cover
Negative SOLARLOK Connector
with Seal Cover (5 Places)
Positive SOLARLOK Connector
with Seal Cover (5 Places)
Hinge
(2 Places)
Box
Front Bottom
Y
B
Ground Assembly
1. INTRODUCTION
SOLARLOK Combiner Box Assemblies 1954283--1
and 1954283--2 are used to combine up to five strings
in a pre--terminated connectorized weather--resistant
enclosure to meet National Electric Code (NEC)
requirements for series fusing of photovoltaic (PV)
modules.
All numerical values in this instruction sheet are
in metric units [with U.S. customary units in
brackets]. Figures are not drawn to scale.
Combiner Box Assembly Specifications
System Voltage (DC):
600 V Maximum
Output Current (DC):
75 A Maximum
Continuous Current (DC):
60 A Maximum
Current Per String (DC):
15 A Maximum
Accepts Fuse Rating (DC):
15 A Maximum
Module Short Circuit Rating (Isc) Per String: 9.6 A Maximum
Weatherability Enclosure Type: NEMA Type 3
Ambient Temperature:
50
_
C [122
_
F] Maximum
Torque:
Negative Output Terminal
4 Nm [35 in.--lbs]
Positive Output Terminal
Wire Sizes 14--10 AWG 4 Nm [35 in.--lbs]
Wire Size 8 AWG
4.5 Nm [40 in.--lbs]
Wire Sizes 6--4 AWG
5.1 Nm [45 in.--lbs]
Ground Terminal Block
4 Nm [35 in.--lbs]
NEMA, National Electrical Code, and NEC are trademarks of their respective owners.
The combiner box assemblies meet the standards of
Underwriters Laboratories Inc. (UL) 1741 to be used
as an accessory for inverters.
Reasons for reissue of this instruction sheet are
provided in Section 5, REVISION SUMMARY.
IMPORTANT
SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This instruction sheet contains important instructions
for Assemblies 1954283--1 and 1954283--2 that must
be followed during installation and maintenance of the
power system.
Read and understand the following safety precautions
before
installing or working with the combiner box
assembly.
— Wiring methods must comply with the National
Electric Code (NEC) and American National
Standards Institute (ANSI)/National Fire Protection
Association (NFPA).
— The DC input and DC output circuits are isolated
from the enclosure. System grounding, if required
by Section 250 of the NEC and ANSI/NFPA 70, is
the responsibility of the installer.
— The photovoltaic system grounding must be
installed according to the requirements of Sections
690.41 through 690.47 of the NEC, ANSI/NFPA
70, and is the responsibility of the installer.
— DO NOT work with the combiner box assembly
if it is attached to any live electrical source.
NOTE
i
