Solar Panels
Solar Controllers
Batteries
Inverters
Mains Chargers
DC-DC Chargers
Cables/Accessories
Power Converters
Monitoring
Kits
By Application
By Brand
Blue Sea 30A A-Series Double Pole Toggle Circuit Breaker - Black
Blue Sea 30A A-Series Double Pole Toggle Circuit Breaker - Black
Magnetic Hydraulic AC Main Protection with Trip-Free Common Trip Link
Regular price
$77.22
Availability:
Special Order
View all products from Blue Sea
Guaranteed Safe and Secure Checkout
0
DESCRIPTION
Reliable AC Main Circuit Protection and Switching for Demanding Electrical Panels
Managing AC main power in marine vessels, motorhomes, and off-grid installations requires components that deliver consistent, fault-tolerant performance. The Blue Sea A-Series 30A Double-Pole Toggle Circuit Breaker (BS-7237B) integrates heavy-duty circuit protection and manual switching into a single, compact panel-mount device. By eliminating the need for separate switches and fuse holders, this unit simplifies panel layouts while reducing the number of potential failure points in your electrical system.
Specifically engineered for AC main circuit applications, the double-pole configuration switches both active and neutral lines simultaneously. A mechanical common trip link bar connects the two black toggles, ensuring that if an overcurrent event occurs on either pole, both circuits disconnect immediately. This simultaneous disconnection is a critical safety requirement for marine shore power, onboard generators, and inverter distribution panels where isolating the entire AC feed is necessary to protect both equipment and personnel.
Precision Magnetic Hydraulic Technology
Unlike standard thermal circuit breakers that rely on heat-sensitive bimetallic strips, the Blue Sea A-Series utilises a precision magnetic hydraulic trip mechanism. Standard thermal units can suffer from nuisance tripping when installed in hot engine rooms, enclosed electrical cabinets, or warm Australian climates, as elevated ambient temperatures prematurely affect their trip threshold.
In contrast, a magnetic hydraulic breaker senses only the actual current flowing through the coil. Its trip point remains stable across a wide operating temperature range, while a fluid-damped delay mechanism tolerates temporary, harmless inrush currents typical of starting AC appliances or inductive loads. When a genuine sustained overload or short circuit occurs, the breaker responds rapidly to isolate the fault.
Key Features and Technical Advantages
- Dual-Function Design: Combines dependable overcurrent protection and durable manual ON/OFF switching in one integrated unit.
- Common Trip Double-Pole Configuration: Linked toggle actuators ensure both poles trip together if a fault is detected on either line, making it suitable for AC main feeds.
- Trip-Free Safety Mechanism: Internal actuation is mechanically independent of the toggle lever, meaning the breaker cannot be manually held in the ON position during an active fault current condition.
- Magnetic Hydraulic Operation: Delivers consistent 30A trip performance without derating due to high ambient enclosure temperatures.
- Durable Panel Mounting: Equipped with threaded brass mounting inserts for secure, vibration-resistant front-panel installation.
- Comprehensive Global Compliance: Meets ABYC standards and holds UL 1077 recognition alongside TUV, CE, and CSA certifications.
Built for Safety and International Standards
In high-vibration and moisture-prone environments like boats and off-road RVs, electrical safety relies on robust mechanical engineering. The trip-free design is an essential safeguard that prevents operators from accidentally or intentionally overriding a trip event by holding or taping the toggle switch closed while a short circuit or overload persists. Clear 30A current rating markings on the actuator face allow for quick visual verification during panel assembly and maintenance inspections.
Furthermore, the BS-7237B meets strict international regulatory benchmarks, including ABYC (American Boat and Yacht Council) requirements for marine electrical systems. With UL 1077, TUV, CE, and CSA credentials clearly displayed on the side housing, electrical installers and system builders can specify this component with confidence for compliant domestic or commercial builds.
Upgrade Your AC Distribution Panel
Whether you are fitting out a new marine switchboard, upgrading a caravan shore power inlet, or building an off-grid AC distribution enclosure, the Blue Sea A-Series 30A Double-Pole Circuit Breaker provides dependable main circuit isolation. Add the BS-7237B to your system specifications today to ensure safe, compliant, and temperature-stable circuit protection.
SKU: BS-7237B
SPECIFICATIONS
| Specification | Details |
|---|---|
| Product type | Circuit breaker |
| Pole configuration | Double pole |
| Number of poles | 2 |
| Standards / compliance | ABYC, UL 1077, TUV, CE, CSA |
| SKU: | BS-7237B |
| Model #: | BS-7237B |
| MPN: | BS-7237B |
| Package weight: | 0.42 kg |
| Package length: | 0.11 m |
| Package width: | 0.08 m |
| Package height: | 0.08 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…