Counterfeit Examples

Counterfeit QO Circuit Breaker from Taiwan
• 3200A short circuit rating instead of the normal 10,000A
• Contacts weld due to improper materials
• Erratic tripping - no calibration
• Flexible connector inside of the CB is frayed and fails
• No temperature compensation
• Magnetic trip is inoperable
• Does not meet UL standards (or any other standards)
Counterfeit QO Circuit Breaker from Mexico
• 3000A short circuit rating instead of the normal 10,000A
• No arc chamber insulation
• No thermal adjustment - hand bent bimetal
• Erratic tripping - no calibration
• Low grade phenolic material
• No temperature compensation
• Magnetic trip is inoperable
• Does not meet UL standards (or any other standards)
Counterfeit QO Circuit Breaker from Japan
• 5000A short circuit rating instead of the normal 10,000A
• Vulnerable to contact welding
• No arc chamber insulation
• No thermal adjustment - hand bent bimetal
• Does not meet UL standards (or any other standards)
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