3-pack 150Amp Circuit Breaker

3-pack 150Amp Circuit Breaker

Key Features

• Quantity: 3 circuit breakers per pack
• Current Rating: 150 Amps
• Voltage Compatibility: 12V - 48V DC
• Type: Thermal, Type III manual reset
• Mounting: Surface mount design
• Terminals: 3/8 inch - 16 stainless steel studs
• Housing: High-temperature, waterproof plastic housing for use in harsh environments
• Operation: Push-button reset also functions as a master disconnect
• Includes: Breakers, wire lugs, copper washers, and self-tapping mounting screws

Replaces / Cross-Reference Part Numbers

Serves as a reusable replacement for any standard 150A single-use fuse (such as ANL or MAXI style fuses) when used with an appropriate fuse holder. Direct replacement for surface-mount 150A circuit breakers with identical voltage ratings and stud terminal configuration.

Compatibility & Fitment

Designed for overcurrent protection in high-current 12V to 48V DC systems. Common applications include:

• Automotive and car audio amplifier systems
• Marine electrical systems, trolling motors, and winches
• Recreational vehicles (RV) and auxiliary battery setups
• Solar power systems and battery banks
• Heavy-duty industrial equipment

When to Replace

• Existing breaker fails to trip during an overload or short-circuit event.
• Nuisance tripping occurs under normal, rated current loads.
• The manual reset lever is broken, loose, or will not stay in the "ON" position.
• Visible signs of damage, such as a cracked housing or severe corrosion on terminals.
• As an upgrade from a standard 150A fuse to a resettable circuit protection device.

Installation Tips

• Always disconnect the battery or power source before starting installation.
• Install the breaker as close to the power source as possible to protect the main power wire.
• Ensure wire-to-terminal connections are secure using properly crimped ring terminals to prevent overheating.
• Use a wire gauge appropriately sized for a 150A load to avoid voltage drop and fire risk.
• Do not use the manual trip lever as a routine power switch.