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We are located in Virginia USA.

PowerDrive PDISB300

300-amp circuit breaker

Item # 996PDSB300

California customers:
Please click here for your Proposition 65 warning.

Need help?
Contact our Virginia-based experts.

Item # 996PDSB300

In stock
Need help?
Contact our Virginia-based experts.

About the PowerDrive PDISB300

Less fuss than a fuse

PowerDrive's PDISB300 circuit breaker is rated at 300 amps — sturdy enough for PowerDrive high-output inverters or the most extreme car audio applications. And if you happen to trip it, just a quick flick of a switch resets it, so you don't have to mess around with fuses any longer.

Product highlights:

  • 300-amp circuit breaker
  • easy-to-use reset switch
  • accepts 1/0-gauge to 2-gauge power wire
  • maximum cable diameter: 8.49 mm
  • includes mounting hardware
  • 4-3/16"W x 1-5/8"H x 1-11/16"D
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # PDISB300

What's in the box:

  • 300A Circuit breaker
  • 2 Mounting screws (5/8" length)
  • Owner's Guide

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More details on the PowerDrive PDISB300

Russ B.

Product Research


Overview: This PowerDrive 300A Circuit Breaker (PDISB300) is recommended for use with PowerDrive's high wattage power inverters, including the PD3000. It should be installed on the positive power cable near its connection to the battery. It is compatible with 2-gauge to 1/0-gauge wire. The circuit breaker accepts wires with a maximum diameter of 0.334" (8.49mm). The set screws that tighten around the bare wire of the power cable require a 3mm Allen wrench. Two mounting screws (length 5/8") are included for mounting the circuit breaker.

Design and Function: The 300A Circuit Breaker features a unique red lever that flips open whenever there is a short circuit between the battery and the circuit breaker, or the current exceeds 300 DC Amps. It cuts off the power supply to the connected power inverter to protect it from excessive current. After you have determined the cause, and corrected the condition, you can safely reset the circuit breaker by pressing the lever back into place. In addition, you can manually open the circuit by pressing the red button next to the lever, releasing the lever and turning off the power.

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