Bussmann CB123-20HB 20A Type III Heavy Duty Automotive Circuit Breaker with Stud Terminals

The Bussmann CB123-20HB is a Type III heavy-duty automotive circuit breaker rated at 20 amps and 26V DC, featuring a manual push-to-reset design and dual 10-32 TPI stud terminals spaced at 0.69-inch centers. Built for demanding electrical protection applications, this breaker is engineered to trip when an overload occurs and can be manually reset once the fault condition is cleared.

Part of the Eaton Bussmann CB123-HB series, this circuit breaker is constructed with a durable plastic base and housing and includes a built-in crosswise mounting bracket for easy panel installation. It carries an interrupt rating of 1.5 kAIC at 12V DC, making it suitable for robust auxiliary and accessory circuit protection.

Key Features:

• 20 Amp / 26V DC rating for reliable overload protection
• Type III manual reset — push-button reset after fault is cleared
• 10-32 TPI stud terminals at 0.69-inch centers for secure wire connections
• 1.5 kAIC interrupt rating at 12V DC
• Heavy-duty construction with durable plastic housing
• Built-in crosswise mounting bracket for easy installation
• Suitable for trucks, buses, RVs, boats, and battery charging systems with isolators
• Available in weatherproof/waterproof configurations for harsh environments

The Bussmann CB123-20HB is a trusted solution for protecting auxiliary and accessory circuits in commercial vehicles, recreational vehicles, and marine applications. As part of the Eaton family of circuit protection products, it meets the high standards expected from one of the industry's most recognized names in electrical safety.