Blog - 16 : Product Highlight: PV-TY008 MC4 Connector – Torque Performance Verified Beyond TUV Requirements

PV-TY008 MC4 connector (1500VDC / 43A) has undergone rigorous nut tightening torque testing to verify its mechanical reliability and field safety.

Test Summary:

• TUV Requirement: ≥ 1.2 N·m

• Our Test Result: ≥ 1.5 N·m (all samples)

All test units consistently exceeded the TUV-specified minimum torque threshold, demonstrating a substantial safety margin in the locking mechanism.

Video 1: PV-TY008 nut tightening torque test – dedicated tool operation verifying ≥1.5 N·m locking force (TUV requirement: ≥1.2 N·m).

Key Design Features:

• Tool-required unlocking: The positive and negative nut caps are designed with a foolproof, anti-tamper mechanism that prevents manual loosening by hand. Only a dedicated tool can release the connection.

• Dual TUV certification: The PV-TY008 is fully certified by both TUV Rheinland ( website : www.tuv.com   / Certificate No.: B 50585814    )and TUV SÜD (website : www.tuvsud.cn / Certificate No.: B 076447 0006 ), ensuring compliance with the latest international safety standards.

Why This Matters to Installers and System Owners:

• Prevents accidental or unauthorized disconnection in the field

• Ensures long-term stable contact pressure and IP protection

• Reduces O&M risks associated with loose connections

With a proven torque performance of >1.5 N·m—well above the required 1.2 N·m—the PV-TY008 delivers reliable, tamper-resistant performance that you can trust for your PV system.