Solar Panels
Solar Controllers
Batteries
Inverters
Mains Chargers
DC-DC Chargers
Cables/Accessories
Power Converters
Monitoring
Kits
By Application
By Brand
Blue Sea 20A Medium Duty Push Button Reset-Only Circuit Breaker
Blue Sea 20A Medium Duty Push Button Reset-Only Circuit Breaker
Weatherproof, Ignition Protected & Trip-Free with Captive Lock Washers
Regular price
$86.49
Availability:
Special Order
View all products from Blue Sea
Guaranteed Safe and Secure Checkout
0
DESCRIPTION
Reliable Overcurrent Protection for Marine, 4WD, and Off-Grid DC Systems
The Blue Sea Medium Duty 20A Push Button Reset-Only Circuit Breaker delivers robust, dependable overcurrent protection for auxiliary circuits where dedicated switching is managed elsewhere or is not required. Engineered specifically for demanding mobile, marine, and off-grid electrical environments, this unit safeguards critical 20A loads against short circuits and sustained overloads without the hassle of carrying spare fuses.
Whether you are wiring a 24-hour bilge pump circuit on a vessel, protecting solar charge controller feeds in a caravan, or securing auxiliary power outlets in a 4WD canopy, this compact breaker offers professional-grade safety and streamlined installation.
Engineered for Harsh Environments and High-Risk Zones
Electrical components installed in marine hulls, boat bilges, and vehicle engine bays face constant exposure to moisture, vibration, and potential fuel vapours. This circuit breaker features a fully weatherproof and ignition-protected housing. Ignition protection is a critical safety standard for petrol-powered boats and specialised utility vehicles, ensuring the internal mechanism will not ignite surrounding explosive gases if the breaker trips under a heavy fault load.
Unlike standard unsealed breakers or basic fuse holders that can corrode, loosen, or fail prematurely when exposed to salt spray and road grime, this Blue Sea Systems unit maintains circuit integrity in exposed mounting locations.
Key Features and Technical Benefits
- Trip-Free Mechanism: Internal contacts cannot be manually held closed during an active fault current condition, preventing wire overheating and equipment damage.
- Ignition Protected Housing: Safe for installation aboard petrol-powered boats and near battery or fuel enclosures.
- Weatherproof Construction: Resists moisture, dust, and salt spray ingress in exposed marine and automotive applications.
- Captive Star Lock Washers: Integrated onto the terminal studs to meet anti-rotation requirements, preventing loose connections from vibration and eliminating dropped washers in tight spaces.
- Compact Surface-Mount Footprint: Integrated mounting flange with pre-drilled holes supports high-density circuit protection layouts in confined electrical panels.
- Push-to-Reset Operation: High-visibility red manual reset button clearly indicates a tripped state and prevents accidental manual switching of critical circuits.
Why Choose a Reset-Only Breaker?
A reset-only actuator is purpose-built for circuits that must remain continuously powered unless an electrical fault occurs. Because the button cannot be manually pulled or switched off, it eliminates the risk of accidentally disconnecting essential equipment such as automatic bilge pumps, security monitoring systems, battery management accessories, or fridge lines. If an overload occurs, the red actuator pops out for immediate visual identification and requires a simple push to restore power once the fault is cleared.
Streamlined, Vibration-Resistant Installation
Working inside cramped electrical cabinets or behind vehicle dashboards can be challenging. The inclusion of captive star lock washers on the threaded terminal studs means installers do not have to fumble with tiny, loose hardware. These washers bite securely into the ring terminal, meeting strict marine anti-rotation standards and ensuring your electrical connections remain tight despite heavy corrugations or wave impacts.
Upgrade Your Circuit Protection
Integrate the Blue Sea Medium Duty 20A Push Button Circuit Breaker into your DC power distribution setup today for safe, compliant, and maintenance-free circuit protection across your marine or off-grid system.
SKU: BS-2139B
SPECIFICATIONS
| Specification | Value |
|---|---|
| Product type | Circuit breaker |
| Actuator type | Manual, push-to-reset |
| SKU: | BS-2139B |
| Model #: | BS-2139B |
| MPN: | BS-2139B |
| Package weight: | 0.12 kg |
| Package length: | 0.1 m |
| Package width: | 0.08 m |
| Package height: | 0.06 m |
WARRANTY
Blue Sea Warranty Policy
Blue Sea Systems products sold by us are supplied with a warranty against defects for the warranty period shown below, subject to the product type, application and the terms of this warranty policy.
The express warranty provided by us is limited to a maximum of 5 years from the original date of purchase, unless otherwise required under Australian Consumer Law.
Blue Sea Systems may offer longer manufacturer support on some products at their discretion
Warranty Lengths by Product Range
| Blue Sea Product Range | Warranty Length | Application / Notes |
|---|---|---|
| Most Blue Sea Systems Products | 5 years | Applies to most Blue Sea Systems products found to be defective in materials or manufacture. |
| P12 Battery Chargers | 5 years | Warranty period starts from the original date of purchase. |
| P12 Remote Displays | 5 years | Warranty period starts from the original date of purchase. |
| Digital Meters | 3 years | Warranty period starts from the original date of purchase. |
| Vessel System Monitors | 3 years | Warranty period starts from the original date of purchase. |
Warranty Assessment and Remedy
If a Blue Sea Systems product is found to be defective in materials or manufacture within the applicable warranty period, we will, at our discretion, arrange a repair, replacement, store credit or refund, depending on the nature of the fault and the requirements of Australian Consumer Law.
Products may need to be returned for assessment before a warranty claim can be approved. Where required, the product must be returned with dated proof of purchase and a clear description of the fault.
Labour costs for removing, replacing, reinstalling or diagnosing a product are not covered by this express warranty unless otherwise required under Australian Consumer Law.
Making a Warranty Claim
To make a warranty claim, please contact us with your dated proof of purchase, product details and a description of the fault.
The product may need to be returned for inspection before the claim can be assessed. If the product is confirmed to be faulty and covered by this warranty, we will advise the available remedy.
What This Warranty Does Not Cover
This warranty does not cover faults or damage caused by incorrect installation, incorrect application, misuse, abuse, neglect, unauthorised modification, accidental damage, normal wear and tear, environmental damage, or failure to use the product in accordance with the manufacturer's instructions.
- Incorrect installation or wiring
- Incorrect product selection or application
- Misuse, abuse or neglect
- Physical or accidental damage
- Water ingress or environmental damage outside the product's intended use
- Unauthorised modification or repair
- Normal wear and tear
- Labour costs for removal, replacement, reinstallation or diagnosis
- Freight, travel or call-out costs unless otherwise required by law
- Products not returned for assessment when reasonably required
Manufacturer Support
Blue Sea Systems may provide additional manufacturer support on some products beyond the warranty period listed above. Where available, we may assist customers in contacting the manufacturer, but any manufacturer support beyond the express warranty period is subject to the manufacturer's own terms and continued availability.
Australian Consumer Law
This warranty is in addition to other rights and remedies available at law. Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.
DOCUMENTS
Loading product documents…