Strength Tester for Lead - end of Photovoltaic Modules

The Strength Tester for Lead-End of Photovoltaic Modules is designed to evaluate the mechanical integrity and tensile strength of PV module connectors and leads. It ensures the durability and reliability of electrical connections under standardized loading conditions, supporting quality control, R&D, and compliance verification for photovoltaic modules.

Application

(1) Mechanical testing of MC4, H4, and custom PV module connectors

(2) Lead-end tensile strength verification for 72-cell and large-format modules

(3) Evaluation of junction box durability under repeated thermal cycling

(4) R&D testing for module design optimization

(5) QC inspection in manufacturing lines to ensure IEC 61215-2 compliance

(6) Failure analysis for IV curve correlation and connector degradation studies

Standards

(1) IEC 61215-2:2016 – Test Requirements for Electrical and Mechanical Components of Terrestrial PV Modules

(2) CE Certification (Conformité Européenne)

Features

(1) Motorized Tensile Stage: Adjustable 0–500 mm/min with real-time force-displacement graphing

(2) Dynamic Force Feedback: 0.1 N resolution load cell with peak force memory

(3) Self-Calibrating System: Auto-linearity and tare checks before each test

(4) Quick-Change Fixtures: Compatible with MC4, H4, and custom PV connectors

(5) User-Centric Interface: 7” touchscreen HMI with preloaded IEC 61215-2 test sequences

(6) Durable Construction: Rust-resistant 304 stainless steel frame with epoxy coating

(7) Automated Testing: Programmable load profiles simulating long-term mechanical stress

(8) Safety Systems: Emergency shutoff and overload protection at 5 kN

Parameters

Parameter	Specification
Test Area	2,000 mm × 1,000 mm (customizable)
Force Range	0–5,000 N (5 kN capacity)
Force Resolution	0.1 N (10 gf)
Speed Accuracy	±1% of setpoint
Power Supply	220V AC, 50/60Hz (single-phase)
Dimensions	2,200 mm (W) × 1,200 mm (D) × 1,800 mm (H)
Weight	250 kg (net)

Accessories

(1) Testing Kit: 10x PV connector fixtures (MC4/H4 compatible), 5x calibration grade load cells (10 N–5,000 N)

(2) Software Suite: License key for TensileTest Pro (Windows/Linux), 1-year free access to cloud-based fatigue analysis tools

(3) Calibration & Safety: NIST-traceable force gauge, insulated gloves (Class 0, 3 pairs)

(4) Maintenance Kit: Spare drive belts and bearings, machine cleaning solution (non-corrosive)

(5) Documentation: Multilingual quick-start guide (printed + digital), IEC/UL/ISO compliance certificates

Test Procedures

(1) Mount PV module leads or connectors into quick-change fixtures.

(2) Select desired force profile and speed via touchscreen interface.

(3) Begin tensile test while monitoring real-time force-displacement data.

(4) Automatically record peak force and failure events.

(5) Export results and generate test report for QC or R&D evaluation.

Maintenance Information

(1) Inspect load cells, clamps, and drive belts regularly for wear or damage.

(2) Clean fixtures and frame surfaces with non-corrosive cleaning solutions.

(3) Verify calibration of force measurement system periodically.

(4) Lubricate moving parts according to scheduled maintenance.

(5) Store in a dry environment to maintain precision and prolong service life.

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