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Blue Sea 300A AC/50mA AC M2 Coil AC Current Transformer
Blue Sea 300A AC/50mA AC M2 Coil AC Current Transformer
Non-Intrusive Pass-Through Sensing with Flanged Base & Screw Terminals
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DESCRIPTION
Precision AC Current Sensing for Marine and Off-Grid Electrical Systems
Managing high-capacity alternating current in marine vessels, motorhomes, and off-grid power architectures requires reliable, non-intrusive measurement. The Blue Sea Systems M2 Coil AC Current Transformer is engineered to safely step down a primary 300A AC load into a manageable, proportional 50mA AC signal. This precise transformation ratio allows compatible digital monitoring systems, particularly the Blue Sea Systems M2 OLED Digital Monitor series, to accurately track AC amperage without routing heavy-gauge, high-voltage conductors directly to the display panel.
By isolating the primary AC load from the instrumentation circuit, this current transformer significantly reduces the risk of electrical hazards at the helm or control board. It eliminates the voltage drop and heat generation associated with inline resistive shunts, providing a safer and more efficient method for monitoring generators, shore power inlets, and heavy-duty inverter outputs.
Engineered for Secure, Vibration-Resistant Installation
Unlike standard commercial-grade sensors that can fail in mobile or coastal environments, this Blue Sea Systems current transformer is constructed to withstand the rigours of marine and automotive applications. The unit features a robust black housing with an integrated flanged mounting base, complete with pre-cut slots for secure surface installation inside switchboards, distribution panels, or inverter enclosures.
- Defined 300A AC to 50mA AC Ratio: Delivers a linear, stepped-down secondary signal tailored for M2 AC ammeters and digital multimeters.
- Non-Intrusive Central Aperture: The large circular opening easily accommodates heavy-duty primary AC conductor cables without cutting or splicing the main power line.
- Secure Screw Terminals: Heavy-duty screw-down terminal points ensure vibration-resistant connections for the 50mA secondary signal wires, preventing signal dropout in rough seas or corrugated off-road conditions.
- Integrated Flanged Base: Allows for rigid bulkhead or panel mounting, keeping the sensor firmly in place around the primary conductor.
- Permanent Technical Labelling: Clearly marked with the transformation ratio and current rating on the housing for straightforward identification during installation and future system maintenance.
Why Choose a Dedicated M2 Current Transformer?
Accurate load management is critical when operating high-output AC appliances from limited energy sources like marine generators or off-grid inverter chargers. Using an improperly matched sensor can lead to skewed amperage readings, resulting in tripped circuit breakers, overloaded generators, or unexpected system shutdowns. This purpose-built current transformer ensures seamless calibration with M2 series monitors, giving system operators the confidence to balance AC loads effectively.
Whether you are commissioning a new commercial vessel, upgrading a caravan electrical distribution board, or building a custom off-grid cabin power system, this component provides the electrical isolation and measurement accuracy required for professional-grade AC monitoring.
Upgrade Your AC Power Monitoring
Integrate the Blue Sea 300A AC/50mA AC M2 Coil Current Transformer into your electrical distribution panel today for safe, reliable, and accurate AC current tracking across your entire power system.
SKU: BS-1829B
SPECIFICATIONS
| Specification | Value |
|---|---|
| Product type | AC current transformer |
| Accessory function | Current transformer |
| Transformation ratio | 300A AC/50mA AC |
| Rated current | 300A AC |
| SKU: | BS-1829B |
| Model #: | BS-1829B |
| MPN: | BS-1829B |
| Package weight: | 0.06 kg |
| Package length: | 0.1 m |
| Package width: | 0.08 m |
| Package height: | 0.04 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.