Upgraded Hi-Amp Circuit Breaker: Stainless Steel Studs for Enhanced Durability and Safety

Hi-Amp Circuit Breaker – Now with Stainless Steel Stud Upgrade

In high-current DC systems, the reliability of circuit protection directly affects the safety of both equipment and personnel. The newly upgraded  Hi-Amp Circuit Breaker is UL certified ,  RoHS compliant , and now features high-strength stainless steel studs for enhanced durability and long-term stability.

Upgrade Highlight – Stainless Steel Studs

The previous nickel-plated copper alloy studs could be damaged under lower torque. The new 1/4"-28 stainless steel studs   withstand:

15 N·m    before cracking

17 N·m    before breaking

Advantages

Higher Strength – Withstands greater tightening pressure

Excellent Corrosion Resistance   – Ideal for marine, humid, and outdoor environments

Long-Term Reliability   – Minimizes failures caused by poor contact or stud breakage

Key Specifications

Current Range: 25A ~ 150A

Protection Rating: IP67 waterproof & dustproof / UL 94V-0

Operating Temperature: -32°C to 82°C (-25°F to 180°F)

Standards Compliance:   SAE J1625, J1171, UL1500, CE

Installation:   Surface mount with protective stud insulator

Applications

Marine – Yachts, fishing boats, high-humidity environments

Heavy-Duty Vehicles   – Trucks, construction vehicles, prolonged vibration resistance

DC Power Systems   – RVs, solar systems, and other high-current DC setups

Why Choose Our Hi-Amp Circuit Breaker

Safe & Reliable – Prevents overheating and fire hazards

Durability Upgrade   – Stainless steel studs and robust housing

Versatile Use   – Fits multiple high-current DC protection needs

The upgraded stainless steel stud    Hi-Amp Circuit Breaker    sets a new benchmark in durability, meets international safety and environmental standards, and delivers dependable protection for marine, heavy-duty vehicle, and DC power system applications.