background image

INSTALLATION INSTRUCTIONS

PHOTOVOLTAIC MODULE

1506876HC2701

All Rights Reserved. Copyright ©2015: MITSUBISHI ELECTRIC CORPORATION

Printed in Japan

1.INTRODUCTION

• BEFORE INSTALLATION, OPERATION, AND MAINTENANCE, BE SURE TO READ THESE INSTRUCTIONS IN ORDER TO USE 

THE PV MODULES SAFELY. 

• FOR INSTALLATIONS IN THE USA, REFER TO THE NATIONAL ELECTRIC CODE (NEC) AND ALL APPLICABLE LOCAL CODES. 

FOR INSTALLATIONS IN CANADA, REFER TO THE CANADIAN ELECTRIC CODE (CEC) AND ALL APPLICABLE LOCAL CODES.

• FAILURE TO OBSERVE THE FOLLOWING INSTRUCTIONS MAY RESULT IN DEATH OR PERSONAL INJURY AND PROPERTY DAMAGE.
• KEEP THIS MANUAL FOR FUTURE REFERENCE.

En-1

En-4

WARNING

1. GENERAL USE

• Avoid touching the front surface of the module with bare 

hands.

• DO NOT handle except for installation and maintenance.
• Ensure that unauthorised personnel, including children, 

are not allowed to access the modules.

2. GENERAL HANDLING 

• DO NOT alter or remove any component.
• DO NOT stand or step on the modules.
• DO NOT damage the front or rear surface of the PV 

modules. The rear surface can be damaged by sharp 
objects.

• DO NOT throw or drop the PV modules.
• DO NOT lift the modules by the connectors or cables.

3. INSTALLATION 

• Only licensed professionals should handle the modules.
• Secure yourself to avoid falling from the installation area.
• DO NOT use damaged PV modules.  
   A damaged PV module may cause fire and/or an 

electrical shock resulting in personal injury or even 
death.

• DO NOT expose the PV modules to artificially 

concentrated sunlight.

• Cover the front surfaces of the PV modules with an 

opaque cloth to prevent the generation of  high voltage 
and electric current during installation.

• Securely fasten the PV modules to the mounting 

framework to prevent them from falling due to wind or 
snow loads. The modules should be installed as 
instructed in this installation manual.

• Securely ground the PV module frame and the mounting 

framework following local regulations.

• Install a residual current device (RCD) as prescribed by 

local regulations. 

• DO NOT expose the backside of the module to sunlight. 
• DO NOT install the modules in places where they can be 

shaded by objects such as buildings or trees. 

CAUTION

WARNING

• Connect the required number of PV modules to meet the 

voltage specification of the equipment used in the system.

- Max. in series: 20pcs due to max. system voltage
- Max. in parallel: 2 strings due to fuse rating

• Connect the output cable connectors so that they do not 

exert any strain on the base of the cable at the junction box. 
Secure the cable to the mounting framework using approved 
fasteners.
The connectors should be placed behind the mounting 
framework so that the connectors are not directly exposed to 
sunlight, wind or rain.

• DO NOT apply external force (stepping on, etc.) to the 

connector.

• The PV module has a pair of male and female waterproof 

connectors. For an electrical connection in series, connect 
the positive (+) connector of the first PV module to the 
negative (-) connector of the following module.

• These modules employ UL Recognized connectors for output 

wiring. Final output field wiring should be done with 
CCT9901-3301F (R51-27) (male), CCT9901-3511F (R51-27) 
(female) connectors from SMK using minimum 14 AWG 
copper wire cables rated for 90°C (194°F).
These products provide final system output wiring in 
accordance with the U.S. National Electrical Code, NFPA 
70-2008 or CEC accordingly.
Please refer to Article 690 of the NEC for additional guidance.

• To extend the cable, use proper commercial cables and 

connectors rated for at least 1000V that can withstand 
outdoor use for long periods. Select the appropriate cable 
size according to its length to avoid excessive voltage drop.
Follow the cable manufacturer's instructions.

3.MAINTENANCE

• Maintenance must be done only by qualified personnel.
• Be sure the circuit breaker is switched off, if applicable. 

Always use appropriate safety equipment (insulated tools, 
insulating gloves, etc.).

• Be sure to cover the front surface of the PV modules with an 

opaque cloth to block sunlight when connecting or 
disconnecting modules.

ANNUAL INSPECTION

• Check if the nuts and bolts of the mounting framework are 

secure. Tighten all loose components.

• Check the connections of cables, including grounding cables 

and connectors.

• Check that all electrical and mechanical connections are 

free of corrosion.

• Check the ground resistance of metal parts such as the 

module frames and the mounting framework.

Others

• Clean the glass surface of the modules when dirty. (Wash 

or wipe only the glass surface of module without using 
detergent.)

2-4-4. Method #4 (use of the bolts and nuts in the mounting hole)

• All hardware used in this method must be stainless steel.

- Examples of 

acceptable grades of 
stainless steel are: 
18-8, 316, and 410.

• A 1 1/4” bolt and double 

nuts of No.5/16 diameter 
(or M8) shall be used to 
mount the PV module to 
the mounting structure 
through the 9mm 
diameter mounting hole.

• Torque to secure the bolt: 

5N·m (3.7 ft-lb) 

• External toothed stainless steel washers shall be inserted 

between the module frame and ring washer, and also 
between the mounting structure and ring washer.

• A spring washer shall be used to avoid loosening of the bolt.
• All 4 mounting holes of each PV module must be secured to 

the mounting structure.

• At least 2 of the 4 locations must have external toothed 

washers.

• All four locations shall have 2 nuts installed.
• A grounding electrode system for the mounting structure 

must be provided in accordance with the NEC or CEC 
standards.

• Recommended mounting structure characteristics:  

- Alloys with resistivity less than 1.61 micro-ohms / inch
- Wall thickness of at least 1/8” 

2-4-5. Method #5 (WEEB clips/ barbed washers and associated 
racking)

• Barbed washers listed under UL467 intended for use in 

bonding photovoltaic modules to mounting structures may 
be used for grounding as described in the NEC or CEC 
standards.

• When installing the WEEB UMC Clip or UniRac UGC-1 Clip 

as a means of grounding the modules, tighten the mounting 
bolt to 13.5N·m (10lb-ft).

• Barbed washers identified for grounding must be installed in 

accordance with the manufacturer's specified instructions. 

• Recommended mounting structures that accommodate 

barbed washers are manufactured by UNIRAC.  

• Approved options of WEEB clips/ barbed washers to be 

used in conjunction with UNIRAC racking solution are: 

o WEEB UMC clip
o UNIRAC UGC-1 clip

Note: Barbed washers are intended for one time use only.

If a module is removed, replaced, repositioned or 
remounted, the associated barbed washer(s) must be 
replaced. Follow instructions of the manufacturer.

ELECTRICAL SPECIFICATIONS

The electrical characteristics are within 

±

10% of the indicated values of Isc, Voc, and 5/-0% of Pmax under 

standard test conditions (irradiance of 1000 W/m

2

, AM1.5 spectrum, and a cell temperature of 25

°

C (77°F)).

Standard: IEC61215 ed. 2 (2005), IEC61730 ed. 1 (2004) Application Class A, UL1703

MODEL

PV-MJE265FB

PV-MJE270FB

Pmax

265 W

270 W

Voc

38.0 V

38.2 V

Isc

9.10 A

9.23 A

Vmp

30.9 V

31.1 V

Imp

8.59 A

8.69 A

*1 [A]

15

15

*2 [A]

12.5

12.5

MAXIMUM SYSTEM VOLTAGE

2-5. WIRING

• DO NOT short the positive and 

negative cables. 

• Make sure connectors are fully 

engaged and locked without any 
gap between the insulators. In 
case there is a gap, a fire and/or 
an electrical shock may occur.

 • Use the appropriate tool provided by SMK for disconnecting.

WARNING

Fig. 6 Grounding method #4

ETL LISTED

CONFORMS TO STANDARD UL 1703

CERTIFIED TO ULC ORD C1703

2 Nuts (Stainless steel, 5/16(M8))

Ring washer
(Stainless steel, 5/16)

Toothed Washer

(Stainless steel, 5/16)

Mounting structure (Alminium)

Toothed Washer

(Stainless steel, 5/16)

Ring washer 

(Stainless steel, 5/16)

Spring washer (Stainless steel, 5/16)

Bolt (Stainless steel, 5/16 (M8))

* 8 7 6 H C 2 7 0 1 *

*1  FUSE RATING BASED ON MAX. BYPASS DIODE AMPACITY WITHIN THE PV MODULE

*2  MINIMUM BYPASS DIODE RATING

*3 

+

5/-0% OF NOMINAL VALUE

SYMBOL DEFINITIONS

Pmax

Voc

Isc

Vmp

Imp

MAXIMUM POWER
OPEN CIRCUIT VOLTAGE
SHORT CIRCUIT CURRENT
MAXIMUM POWER VOLTAGE
MAXIMUM POWER CURRENT

TOLERANCE

*3

-

-

-

-

-

-

1000V

(IEC61215,IEC61730,UL1703)

-

Отзывы: