UL 6703 Clause 9.4 PV Connector Cyclic Pull Test Device for Mechanical & Electrical Reliability
Product Overview
The UL 6703 PV Connector Reciprocating Tensile Tester is a specialized testing system developed for evaluating the mechanical and electrical reliability of photovoltaic connectors, solar cable assemblies and PV wiring components.
Designed in accordance with UL 6703 Clause 9.4, the system performs controlled reciprocating tensile movements on photovoltaic connectors while the specimens are subjected to load current conditions.
During testing, the equipment continuously monitors applied tensile force and electrical continuity, enabling laboratories and PV component manufacturers to identify potential wire breakage, connector damage, abnormal force changes, or electrical disconnection after repeated tensile cycles.
The system integrates a PLC control platform, servo motor drive, precision force sensor, and touchscreen HMI, providing accurate control of test force, displacement, speed, and cycle count.
With four independently controlled test stations, the tester improves laboratory testing efficiency while allowing multiple photovoltaic connector samples to be evaluated under identical test conditions.
Key Features
4 Independent PV Connector Test Stations
The system is equipped with four independent testing stations, allowing multiple photovoltaic connector specimens to be tested efficiently. Each station is designed for independent specimen positioning and tensile testing.
Ideal for:
- PV connector manufacturers
- Solar cable manufacturers
- Photovoltaic module manufacturers
- Renewable energy laboratories
- Third-party testing laboratories
- Quality control departments
Designed for UL 6703 Clause 9.4
The testing system is specifically designed around the requirements of UL 6703 Clause 9.4 for photovoltaic connector testing. It provides a controlled method for evaluating connector performance after repeated tensile movement under electrical load conditions.
The test helps determine whether repeated mechanical movement causes:
- Wire breakage
- Connector damage
- Excessive force variation
- Electrical continuity failure
- Mechanical degradation
Servo Motor Driven Linear Tensile Testing
A precision servo motor drive system provides controlled vertical reciprocating movement. The test speed can be adjusted from 0.01 - 100 mm/min, allowing laboratories to establish controlled tensile movement conditions and maintain consistent test repeatability.
High-Precision Force Measurement
A force sensor continuously monitors the tensile load applied to the photovoltaic connector. The system provides:
- Test force range: 10-1000 N
- Loading accuracy: ±0.5%
- Minimum force display: 0.01 N
The equipment can automatically respond to force conditions and perform a reset when preset test conditions are reached.
Photovoltaic Connector Testing Applications
The tester is designed for testing components used in solar photovoltaic electrical systems. Typical applications include:
Solar PV Connectors
Evaluate mechanical durability and electrical continuity of photovoltaic connectors after repeated tensile movement.
Solar Cables & Cable Assemblies
Investigate potential conductor or cable damage caused by repeated mechanical loading.
PV Module Components
Support reliability testing of connector and cable components used in photovoltaic modules.
Solar Energy Equipment
Suitable for manufacturers developing and validating electrical connection components for renewable energy systems.
Laboratory & Certification Testing
Can be integrated into PV component qualification programs, reliability laboratories and third-party certification facilities.
