SunPower SPR-X21-345 User Manual

Safety and Installation Instructions
United States and Canada
This document applies to all SunPower modules
listed in Table 1.
Contents of this manual are subject to change without notice.
For the latest US & Canada manual please refer to www.sunpower.com/PVInstallGuideUS
SunPower Corporation
www.sunpower.com
For the latest for Europe, Asia, Australia, Latin America and Africa manual please refer to
www.sunpower.com/PVInstallGuideIEC
For the latest US & Canada technical specifications please refer to
www.sunpower.com/PVResidentialSTS (for residential modules)
www.sunpower.com/PVCommericalSTS (for commercial and utility modules)
Document 001-14158 Rev AG
P/N 100345
P/N 518350
This document includes references to SunPower E-Series, X-Series, P-Series, A-
Series, MAX2, MAX3 and NE modules. These modules do not have grounding
restrictions and all are compatible with high-efficiency transformerless
inverters.

SunPower SPR-X21-345 Specifications

General

Model	SPR-X21-345
Category	Inverter
Power Output	345 W
Warranty	25 years
Weight	19.0 kg (42 lbs)

Summary

Introduction to SunPower PV Modules

Disclaimer of Liability for SunPower PV Modules

SunPower assumes no responsibility for loss, damage or expense resulting from improper installation, handling, or use.

Underwriters Laboratories (UL) Listing Information

Details SunPower modules meeting UL 1703, ULC/ORD-C1703-01, UL1741, and UL61730 standards for flat-plate PV modules.

SunPower Module Limited Warranty Summary

Summarizes SunPower's Limited Warranties, excluding misuse, abuse, improper installation, and unauthorized alterations.

Safety Precautions for PV Module Installation

SunPower PV Module Fire Rating

Specifies the module's fire rating as Type 2 per UL1703 and Class C per UL1703, dependent on mounting system.

Electrical Characteristics of SunPower PV Modules

Electrical Connections and System Monitoring

Equipment Grounding for SunPower Modules

Details methods for grounding module frames to reduce electrical shock risk as per NEC requirements.

System Grounding Techniques

Series Connection of SunPower Modules

Guidelines for wiring modules in series to achieve desired voltage output, avoiding maximum system voltage limits.

Parallel Connection of SunPower Modules

Guidelines for wiring modules in parallel to achieve desired current output, noting fusing requirements.

NEC 2017 690.12 Compliance for Rapid Shutdown

Module Mounting Requirements

Site Considerations for Module Mounting

Outlines environmental requirements for module installation, including operating temperature ranges.

SunPower Module Mounting Configurations

Module Handling Guidelines

Provides guidelines for safe handling of modules, emphasizing care for glass surfaces and avoiding contact with cables.

Maintenance and Cleaning of SunPower Modules