Skip to Content
  1. All Products
  2. Alvolta Auto-Reset Circuit Breaker 40A
[K-TRAVELLER-03] Enerdrive Traveller System 40AC 40DC with Simarine SCQ50
$ 3,782.00 $ 3,782.00
[ORI241221226] Victron Orion IP67 24/12-100A DC-DC Converter
$ 349.04 $ 349.04
Alvolta Auto-Reset Circuit Breaker 40A
Auto-Reset Circuit Breaker NC-W_1.webp
Auto-Reset Circuit Breaker NC-W_2.webp
Auto-Reset Circuit Breaker NC-W_3.webp
Alvolta Logo
Alvolta Auto-Reset Circuit Breaker 40A
Auto-Reset Circuit Breaker NC-W_1.webp
Auto-Reset Circuit Breaker NC-W_2.webp
Auto-Reset Circuit Breaker NC-W_3.webp
Alvolta Logo

Alvolta Auto-Reset Circuit Breaker 40A

https://www.springers.com.au/web/image/product.template/1244/image_1920?unique=4d62154
(0 review)

Surface mount circuit breaker with M5 terminal studs

$ 2.45 - Inc GST 2.45 AUD $ 2.45

Not Available For Sale

($ 2.45 / Unit)
  • Brand

This combination does not exist.

You have already submitted a query for this product today.
Online Only
In stock
In stock
Contact Us
Brand: Alvolta
ALVOLTA
Terms & ConditionsTerms and Conditions
Returns Information30-day money-back guarantee
Local Brisbane ShippingShips in 2-3 Business Days (online only products may differ)
Circuit Protection, Circuit Breakers, Surface Mount

Specifications

Brand Alvolta

An auto-reset circuit breaker is a protective device that automatically interrupts electrical current when a fault or overload occurs, then resets itself once the fault clears. Unlike manual or fuse-based protection, it doesn’t need to be replaced or reset by hand, making it ideal for 12V and 24V systems commonly used in vehicles, caravans, and boats.

Auto-reset circuit breakers are commonly used in automotive, marine, and off-grid applications, including 4WDs, camper trailers, caravans, and boats. They’re perfect for circuits where occasional short-term overloads occur, such as lighting, pumps, or accessory circuits, and where easy, continuous protection is required without manual resetting.

An auto-reset breaker automatically restores power once it cools down after tripping, while a manual-reset breaker stays off until it’s manually reset by pressing a button or flipping a switch. Auto-reset types are great for non-critical loads, while manual-reset breakers are preferred for safety-critical systems where you need to identify and fix the fault before restoring power.

To select the correct breaker rating, match the amperage to your circuit’s expected continuous current draw, which is typically about 125% of the load current. For example, if your circuit draws 8A continuously, use a 10A breaker. Always refer to manufacturer guidelines and consider the wire size and device specifications for safe protection.

Many auto-reset circuit breakers are designed for dry environments, but weatherproof or sealed versions are available for marine, off-road, or outdoor use. If your installation is exposed to moisture, dust, or vibration, choose a breaker with a sealed housing or IP-rated protection to ensure long-term reliability.

Product Specifications


Model
CB12140
Amperage
40 A
Voltage
>28 V DC
Mounting
Surface
Function Type
Thermal trip-free, cycling
Poles
1
Interrupt Rating
2.5 Kva
Material
​Plastic
Class
​​Type I
Terminal Stud
M5
IP Rating
IP67
Mounting Holes
M4
Dimensions
51 x 21 x 35 mm
Weight ​0.03 kg
Warranty
5 Years

Alternative Products

[CB12150] Alvolta Auto-Reset Circuit Breaker 50A
[CB12150] Alvolta Auto-Reset Circuit Breaker 50A
ALVOLTA
Alvolta Auto-Reset Circuit Breaker 50A
$ 2.45 $ 2.45
SKU:CB12150

Contact Our Team

Choose the form below that best suits your enquiry. Our friendly Brisbane-based team will get back to you as soon as possible.

Let's Power Your Energy Independence

Residential | Commercial | Residential Off-Grid Solar Energy Solutions


Only required for new builds or roof structure renovations.
Submit

Get Detailed 12 - 48 V Advice From Our Local Experts

Caravan | 4WD | DIY Off-Grid Power Solutions


Only if your enquiry relates to a recent order.
Submit

Warranty Assistance & Technical Support

Springers Solar has a dedicated after-sales support team to assist with warranty services and technical support. 

Please click through to our Support Hub for more information or to contact our team.

Support Hub

Product Image
Alvolta Auto-Reset Circuit Breaker 40A

$ 2.45 $ 2.45

Not Available For Sale