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Ver. 6.0U _ Sep 6, 2012

Installation Manual for PV Modules

Mounting using Clamps on Long Edge of Module (Figure 7) – 2 Clamp Method
The modules may be mounted using clamps designed for solar modules as shown in Figure 7. Note the clamp position is important. The 22” length clamp 

should be positioned so that it supports the center of each long frame of the solar module. The clamp should be affixed to the modules and mounting 

structure with 4 bolts on each long frame. For the 2 clamp mount method, the minimum clamp length dimension is 22”. The modules should be inserted fully 

into the module clamps so that the outside edge of the module frame is flush with the inside surface of the clamp. The clamp is designed to overhang the 

top module edge by 12mm. This mounting method is designed to allow module loading of 1,440 Pa.

C) ELECTRICAL INFORMATION

ELECTRICAL RATINGS

Rated electrical characteristics are within ±10 percent of the indicated values of Isc, Voc and 5/-0 percent of Pmax under Standard Test Conditions 

(irradiance of 100 mW/cm2, AM 1.5 spectrum, and a cell temperature of 25˚C (77˚F)). The warranty conditions are specified elsewhere in this manual.

ND-255QCS

ND-250QCS

ND-245QCS

Maximum Power (Pmax)

255.0 W

250.0 W

245.0 W

Open-Circuit Voltage (Voc)

38.6 V

38.3 V

37.8 V

Short-Circuit Current (Isc)

9.0 A

8.9 A

8.9 A

Voltage at maximum power (Vpmax)

30.2 V

29.8 V

29.3 V

Current at maximum power (Ipmax)

8.45 A

8.4 A

8.36 A

Maximum System Voltage

600 V

600 V

600 V

Minimum Blocking diode

15 A

15 A

15 A

Series Fuse

15 A

15 A

15 A

ND-250QCJ

ND-245QCJ

ND-240QCJ

Maximum Power (Pmax)

250.0 W

245.0 W

240.0 W

Open-Circuit Voltage (Voc)

38.3 V

37.8 V

37.5 V

Short-Circuit Current (Isc)

8.9 A

8.90 A

8.75 A

Voltage at maximum power (Vpmax)

29.8 V

29.3 V

29.3 V

Current at maximum power (Ipmax)

8.4 A

8.36 A

8.19 A

Maximum System Voltage

600 V

600 V

600 V

Minimum Blocking diode

15 A

15 A

15 A

Series Fuse

15 A

15 A

15 A

ND-Q250F7

ND-Q245F7

Maximum Power (Pmax)

250.0 W

245.0 W

Open-Circuit Voltage (Voc)

38.3 V

37.8 V

Short-Circuit Current (Isc)

8.9 A

8.9 A

Voltage at maximum power (Vpmax)

29.8 V

29.3 V

Current at maximum power (Ipmax)

8.40 A

8.36 A

Maximum System Voltage

600 V

600 V

Minimum Blocking diode

15 A

15 A

Series Fuse

15 A

15 A

Under normal conditions, a PV module may produce more current and/or voltage than reported at Standard Test Conditions. Accordingly, the values of Isc 

and Voc marked on UL 1703 listed modules should be multiplied by a factor of 1.25 when determining component voltage ratings, conductor ampacities, fuse 

sizes and size of controls connected to the module output. Refer to Sec. 690-8 of the National Electrical Code for an additional multiplying factor of 125 percent 

(80 percent de-rating) which may be applicable. Where Canadian UL listing applies, installation shall be in accordance with CSA C22.1, Safety Standard for 

Electrical Installations, Canadian Electrical Code, Part 1.

Summary of Contents for ND-255QCS

Page 1: ...case of a brushless motor the lock function may become active and the motor may be damaged 2 In the case of a brush type motor the coil may be damaged 6 Always use gloves when handling the module never touch the glass surface with bare hands GENERAL SAFETY 1 Wiring and grounding method of the frame of arrays shall comply with national regional and local codes laws and standards 2 PV modules should...

Page 2: ... or in a raceway to prevent movement of the interconnect cable over time Cable support should be done in a way to avoid the connector from scratching or impacting the back sheet of the module 11 Do not touch the terminal box and the end of the interconnect cables connectors with bare hands during installation or under sunlight regardless of whether the PV module is connected to or disconnected fro...

Page 3: ...electronics corp E69905 assembly consists of a slider base and 8 32 screw and hex nut screw and hex nut are parts in component of 1954381 2 1 Place the grounding onto the frame making sure that the screw straddles the grounding hole 2 Thread the hex nut onto the end of the screw tighten the nut Recommended torque is between 2 0 and 2 2 Nm 3 Insert the grounding wire into the wire slot Press down o...

Page 4: ... in the bottom of the frame and according to Figure 6 The module should be fastened with four 4 M8 5 16 bolts Recommended torque value is 12 5 Nm This mounting method is designed to a static load of 2400 Pa 50 1 lbs ft For your reference please use the washer specified as below for the minimum requirement We recommended parts of the following specifications 1 Spring washer 3 Bolt Material Stainles...

Page 5: ...ions Clamp Thickness Minimum mm Clamp Width Minimum mm Catch Width Minimum mm Support Width Minimum mm Option A 3 3 mm 38 mm 5 mm 10 mm Option B 3 0 mm 43 6 mm 5 mm 10 mm Figure 6 1640 0 mm 820 0 mm 558 8 mm minimum Figure 7 5 9 150 mm e 16 1 410 mm 5 9 150 mm s 16 1 410 mm Figure 8 Figure 9 ...

Page 6: ...r Vpmax 30 2 V 29 8 V 29 3 V Current at maximum power Ipmax 8 45 A 8 4 A 8 36 A Maximum System Voltage 600 V 600 V 600 V Minimum Blocking diode 15 A 15 A 15 A Series Fuse 15 A 15 A 15 A ND 250QCJ ND 245QCJ ND 240QCJ Maximum Power Pmax 250 0 W 245 0 W 240 0 W Open Circuit Voltage Voc 38 3 V 37 8 V 37 5 V Short Circuit Current Isc 8 9 A 8 90 A 8 75 A Voltage at maximum power Vpmax 29 8 V 29 3 V 29 3...

Page 7: ...years from date of purchase by the consumer the first 10 years at 90 minimum rated power output and the balance of 15 years at 80 minimum rated power output This warranty is transferable when product remains installed in original location at the time of product warranty registration This warranty does not apply to any alteration of the appearance of the Product that does not affect the performance...

Page 8: ...hall not exceed the purchase price paid to Sharp for the Product or service which gave rise to the claim under the Limited Warranty The repair replacement of the Product or the supply of additional Product does not cause the beginning of new warranty terms nor shall the original warranty terms of this Limited Warranty be extended Any replaced product shall become Sharp s property Where to Obtain S...

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