SunPower SPR-E20-330-COM 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-E20-330-COM Specifications

General

Brand	SunPower
Model	SPR-E20-330-COM
Category	Inverter
Language	English

Summary

Introduction and Overview

Document Purpose and Warranty Implications

Provides safety and installation instructions for UL Listed PV modules; failure to comply invalidates warranty.

Safety Precautions and Fire Rating

Critical Safety Warnings and Handling Procedures

Details hazards like DC arcing, electric shock from damaged modules, and proper handling during installation and wet conditions.

Fire Classification and System Integration

Specifies module fire ratings (Type 2, Class C) and their dependency on mounting system for PV system fire rating.

Electrical Characteristics and Connections

Module Electrical Specifications and STC Conditions

Details rated electrical characteristics, bypass diodes, fuse ratings, and voltage/current adjustments for field conditions.

Module Interconnection and Connector Compatibility

Explains series/parallel module connections and recommends compatible connector brands for PV systems.

Grounding and System Requirements

Equipment Grounding Methods and Requirements

Details requirements for grounding module frames to prevent electrical shock, including recommended methods and materials.

System Grounding Techniques

Provides guidance on proper grounding techniques for various SunPower module types based on NEC and UL standards.

NEC 2017 Rapid Shutdown Compliance

Details compliance with NEC 2017 rapid shutdown requirements for modules with pre-installed SunSpec compliant receivers.

Module Mounting and Site Considerations

Site and Environmental Considerations

Specifies mounting location requirements, operating temperature ranges, and the importance of ventilation for module performance.

Module Mounting Configurations and Load Ratings

Explains mounting options, attachment locations, and resulting load ratings for various module configurations and frame types.

Mounting Methods and Frame Hole Usage

Details approved mounting methods (frame holes, clamps, end mounts) and guidelines for using module frame holes and hardware.

Module Handling and Maintenance

Module Handling Precautions

Advises on proper handling of modules using gloves, avoiding contact with abrasive surfaces, and not lifting by cables or junction boxes.

Maintenance and Cleaning Procedures

Recommends annual inspections and periodic cleaning of module glass using approved methods to maintain performance.

Module Frame and Hole Details

Residential Module Frame Details

Illustrates module mounting and ground hole details for residential G3 and G5 frame types, including dimensions.

Commercial Module Frame Details

Provides detailed diagrams and dimensions for mounting holes and frames of commercial modules (96-cell, 128-cell) with stacking pins.

A-Series Module Frame Details

Shows frame details and dimensions for A-Series modules, including 72-cell (Gen 4.2, Gen 5.1) and 66-cell (Gen 5.2) variants.