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Blue Sea 200A 187-Series Surface Mount Thermal Circuit Breaker
Blue Sea 200A 187-Series Surface Mount Thermal Circuit Breaker
Waterproof & Ignition Protected Manual Disconnect with M8 Studs
Regular price
$218.28
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DESCRIPTION
Heavy-Duty 200A Overcurrent Protection and Manual Battery Isolation
The Blue Sea 187-Series 200A Surface Mount Thermal Circuit Breaker delivers reliable overcurrent protection and convenient manual switching in a single, compact unit. Engineered specifically for demanding marine, RV, caravan, and off-grid power systems, this heavy-duty DC circuit breaker simplifies wiring topologies by eliminating the need for a separate fuse holder and isolation switch. Featuring a single high-visibility yellow control lever, operators can easily disconnect high-ampacity circuits for routine maintenance or emergency shutdowns.
Built to perform where inferior alternatives often fail due to thermal fatigue, voltage drop, or moisture ingress, the 187-Series utilizes a specialized trip-free internal mechanism. This critical safety feature ensures the circuit breaker cannot be manually held in the closed (ON) position during an active fault condition, protecting expensive cabling, battery banks, and downstream appliances from catastrophic thermal events.
Engineered for Harsh Marine and Automotive Environments
Whether installed in the engine bay of a 4WD, the battery locker of a caravan, or the bilge of a commercial vessel, electrical protection components must withstand environmental extremes. The Blue Sea 187-Series features a waterproof housing and certified ignition-protected construction. This makes it completely safe for installation aboard petrol-powered boats and inside enclosed battery compartments where explosive gases may accumulate.
- Dual-Function Design: Combines 200A thermal circuit protection with manual on-off switching in one durable housing.
- Trip-Free Safety Mechanism: Internal mechanical design prevents the lever from being held on during an active overcurrent fault.
- Ignition Protected: Safe for installation aboard petrol-powered vessels and in enclosed battery or engine compartments.
- Heavy-Duty Terminations: 5/16" (Approx. M8) stainless steel terminal studs provide high-torque connections and corrosion resistance.
- Large Wire Clearance: Generous spacing around the terminal studs easily accommodates heavy-gauge battery cable lugs.
- Clear Visual Status: The high-visibility lever rests vertically or horizontally to provide immediate visual confirmation of tripped or operational status.
- Waterproof Construction: Sealed housing with recessed mounting holes offers a clean, weather-resistant installation.
Robust Connections for High-Current DC Systems
High-amperage 12V, 24V, and 48V DC electrical systems require robust terminations to prevent high-resistance hot spots. This 200A thermal breaker is equipped with heavy-duty 5/16" (Approx. M8) stainless steel studs designed to support high-torque connections without stripping. The housing is deliberately contoured to provide ample clearance around the studs, accommodating heavy-gauge battery lugs and protective insulator boots without interference. Recessed mounting holes further ensure a secure, vibration-resistant surface mount installation on bulkheads, distribution panels, or battery boxes.
Ideal Applications and Operational Considerations
The Blue Sea 187-Series 200A circuit breaker is ideally suited for main DC feed protection, windlasses, bow thrusters, high-output alternators, and large DC-to-DC battery chargers. Please note: While this unit excels as a manual disconnect and thermal protector, it is not intended to be used for frequent switching under load where high inrush currents are expected (such as switching large inverters without pre-charge circuits).
Upgrade Your Electrical Safety Today
Protect your high-current DC investments with industry-leading marine-grade engineering. Add the Blue Sea 187-Series 200A Surface Mount Thermal Circuit Breaker to your system for dependable overcurrent protection and effortless manual isolation.
SKU: BS-7149B
SPECIFICATIONS
| Specification | Value |
|---|---|
| Product type | Thermal circuit breaker |
| Mounting / form factor | Surface mount |
| Switching logic | Manual |
| Disconnect type | Manual Disconnect |
| Switching function | On-off |
| Ignition protected | Yes |
| Terminal size | 5/16 M8 |
| SKU: | BS-7149B |
| Model #: | BS-7149B |
| MPN: | BS-7149B |
| Package weight: | 0.24 kg |
| Package length: | 0.09 m |
| Package width: | 0.09 m |
| Package height: | 0.1 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
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