5-pack 20Amp Thermal Circuit Breaker 125/250V

Key Features

• Quantity: 5 circuit breakers
• Current Rating: 20 Amps
• Voltage Rating: 125/250V AC, 32V DC
• Interrupt Capacity: 1000 Amps
• Switch Type: Single pole, push-button manual reset
• Protection: Thermal mechanism disconnects circuit during overload conditions
• Terminals: Standard 0.250-inch quick connect terminals
• Mounting: Threaded bushing for panel mounting
• Includes five waterproof button covers

Replaces / Cross-Reference Part Numbers

Replaces push-button thermal circuit breakers with a 20A rating and matching voltage specifications (125/250V AC or 32V DC). Verify physical dimensions for proper fit.

Compatibility & Fitment

Designed for overload protection in a wide range of applications, including:

• Automotive, marine, and RV electrical systems
• Power strips and uninterruptible power supplies (UPS)
• Industrial machinery and control panels
• Household appliances
• Low-voltage DC and AC circuits

When to Replace

• Existing breaker fails to reset after tripping.
• Breaker trips repeatedly under normal load.
• Push-button mechanism is stuck, broken, or will not stay engaged.
• Visible damage such as cracks, burns, or melted plastic on the housing.
• Unit fails to interrupt power during a known over-current event.

Installation Tips

• Disconnect all power to the circuit before beginning installation.
• Confirm the breaker's 20A rating is appropriate for the application and wire gauge.
• Ensure quick connect terminals are fully seated and secure to prevent arcing.
• Use the included hardware to fasten the breaker securely to the panel.
• If used, install the waterproof cover over the button to create a seal against the panel surface.
• After installation, restore power and test the circuit under a normal load.