Bussmann Circuit Breaker 121 Series 40A Plastic Body [ref Narva 54840] CB2140

Bussmann Circuit Breaker 121 Series 40A Plastic Body

The Bussmann Circuit Breaker 121 Series 40A is a reliable and efficient solution for protecting your electrical circuits. Designed by BUSSMANN, a trusted name in electrical components, this circuit breaker is ideal for DIY enthusiasts, tradies, and fleet operators alike. With its robust plastic body, it is suitable for various applications, including limited-space situations and marine-related environments.

This circuit breaker ensures safe and dependable circuit protection, making it a crucial component for anyone looking to maintain the integrity of their electrical systems.

Key features

• 40A rating for reliable circuit protection
• Compact design suitable for limited-space installations
• Durable plastic body for enhanced longevity
• Quick reset mechanism for efficient operation
• Designed for both automotive and marine applications
• Easy to install for both professionals and DIY users

Technical details

• Current rating: 40A
• Body material: Plastic
• Series: 121
• Reference: Narva 54840
• Type: Circuit Breaker

Applications / fitment

This circuit breaker is typically used in a variety of electrical systems to safeguard against overloads and short circuits.

• Passenger vehicles
• 4x4 vehicles
• Marine applications
• Farm machinery
• Industrial equipment
• Workshops

Why buy from Mick’s Gone Bush?

• Trusted Australian business focused on reliable power, auto-electrical, and service parts.
• Stock sourced from reputable distributors and brands.
• Practical support for trade, off-grid, and fleet customers.
• Clear shipping, warranty, and customer service.

Frequently asked questions

How do I install the Bussmann Circuit Breaker?

Installation is straightforward; ensure the circuit is powered off, then connect the input and output terminals as per your system's requirements.

Is this circuit breaker suitable for marine use?

Yes, the Bussmann Circuit Breaker 121 Series is designed for marine applications, providing reliable protection in marine environments.

Can this circuit breaker be used in automotive applications?

Absolutely, this circuit breaker is suitable for various automotive applications, ensuring safe operation in vehicles.

What maintenance is required for this circuit breaker?

Regularly check for any signs of wear or damage, and ensure connections are secure for optimal performance.

What is the reset mechanism like?

The circuit breaker features a quick reset mechanism, allowing for easy reactivation after a trip.