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Blue Sea 25A MD Push-Button Circuit Breaker
Blue Sea 25A MD Push-Button Circuit Breaker
Weatherproof & Ignition Protected with Trip-Free Reset & Lock Washers
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$89.58
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DESCRIPTION
Heavy-Duty Weatherproof and Ignition Protected 25A Circuit Protection
Engineered for demanding marine, automotive, and off-grid electrical systems, the Blue Sea Systems 25A Medium Duty (MD) Push-Button Circuit Breaker delivers dependable overcurrent protection where space and environmental resistance are critical. Whether you are outfitting a commercial vessel, upgrading a recreational boat, or building a custom 4WD canopy power distribution system, this 25A breaker provides robust protection for main, branch, or 24-hour circuits.
Unlike standard thermal switches that can degrade rapidly in damp or high-vibration environments, this unit is purpose-built with a weatherproof sealed housing. It prevents moisture ingress, salt spray corrosion, and dust contamination, ensuring consistent electrical continuity when exposed to harsh Australian elements.
Advanced Safety with Trip-Free and Ignition Protected Design
Electrical safety in enclosed compartments is paramount, particularly around fuel sources. This Blue Sea circuit breaker is fully ignition protected, making it safe for installation aboard petrol-powered boats and near fuel tanks or battery compartments where explosive gases or vapours may accumulate. It prevents internal sparks from igniting surrounding fumes, significantly reducing fire hazards compared to unsealed alternatives.
Furthermore, the unit incorporates a mechanical trip-free design. In the event of a sustained overload or direct short circuit, the internal mechanism trips immediately to protect downstream wiring and appliances. Crucially, the trip-free mechanism ensures the breaker cannot be manually held in the "ON" position while a fault current condition persists, eliminating the risk of user override causing wire meltdowns or equipment damage. Once the fault is cleared, power is restored via a simple push-to-reset button operation.
Engineered for High-Density Panels and Easy Installation
Space behind the helm or inside a distribution box is often limited. The compact footprint and integrated surface mounting flange of the MD series allow for high-density circuit protection configurations, enabling installers to group multiple breakers cleanly in tight enclosures.
To streamline installation in awkward or confined spaces, the terminal studs are equipped with captive star lock washers. These specialised washers are permanently attached to the terminal hardware, preventing you from dropping small components into the bilge or behind panelling during wiring. Once tightened, the star lock profile bites into the ring terminal to meet strict anti-rotation requirements, ensuring connections do not vibrate loose over corrugated roads or rough seas.
Key Features & Benefits
- Weatherproof Sealed Construction: Protects internal contacts against moisture, salt spray, and dirt in exposed marine or automotive applications.
- Ignition Protected Housing: Certified safe for installation in petrol engine compartments and enclosed battery boxes.
- Trip-Free Push-to-Reset Operation: Simple one-touch resetting that cannot be forced on during an active electrical fault.
- Captive Star Lock Washers: Eliminates the frustration of dropped hardware during installation while providing superior anti-rotation and vibration resistance.
- Compact High-Density Profile: Ideal for tight electrical panels serving main, branch, or continuous 24-hour loads like bilge pumps and security systems.
Ideal Applications
- Marine Vessels: Main feeds, branch circuits, windlass control, and 24-hour essential circuits (such as automatic bilge pumps and vessel monitoring) on both petrol and diesel boats.
- Caravans & Campers: Weather-resistant circuit protection for external distribution boxes, high-draw appliances, and battery management setups.
- 4WD & Commercial Vehicles: Reliable vibration-resistant protection for auxiliary canopies, winches, lighting rigs, and industrial equipment.
Upgrade your electrical distribution system with professional-grade protection. Add the Blue Sea 25A MD Push-Button Circuit Breaker to your setup today to ensure safe, compliant, and durable power management in any environment.
SKU: BS-2140-25A
SPECIFICATIONS
| Specification | Value |
|---|---|
| Rated current | 25A |
| Product type | Circuit breaker |
| Design | Push button; compact design for high-density circuit protection configurations |
| Operation | Push-to-reset; trip-free design cannot be held “ON” during fault current condition |
| Weather protection | Weatherproof |
| Ignition protection | Ignition protected; safe for installation aboard gasoline powered boats |
| Applications | Main, branch, or 24 hour circuit protection |
| Washers | Captive star lock washers meet requirements for anti-rotation and eliminate handling of small, easily dropped parts |
| SKU: | BS-2140-25A |
| Model #: | BS-2140-25A |
| MPN: | BS-2140-25A |
| Package weight: | 0.072 kg |
| Package length: | 0.09 m |
| Package width: | 0.06 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.