SKU: 44181811002

Blue Sea 300A Red Mini m-Series On/Off Battery Switch

$46.64 $51.82
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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15

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Description

Blue Sea 300A Red Mini m-Series On/Off Battery SwitchBlue Sea m Series: Compact High Current Battery Isolation Reliable Power Management for Marine and RV Systems The Blue Sea Systems m Series Battery Switch solves the common challenge of installing high amperage isolation in tight spaces. Despite its compact footprint, this switch is engineered to handle significant power loads, making it an ideal choice for switching a single battery to a single load group in boats, caravans, and 4WD setups. Unlike

Blue Sea m-Series: Compact High-Current Battery Isolation

Reliable Power Management for Marine and RV Systems

The Blue Sea Systems m-Series Battery Switch solves the common challenge of installing high-amperage isolation in tight spaces. Despite its compact footprint, this switch is engineered to handle significant power loads, making it an ideal choice for switching a single battery to a single load group in boats, caravans, and 4WD setups.

Unlike generic switches that often suffer from voltage drop or overheating under load, the m-Series features tinned copper studs for maximum conductivity and corrosion resistance. It is rated for 300A continuous current, with an impressive intermittent rating of 500A (5 minutes) and a cranking rating of 900A (30 seconds), ensuring it can handle engine starting surges without failure.

Ignition Protected for Safety

Safety is paramount in marine electrical design. This switch is ignition protected, meaning it is safe for installation on gasoline-powered boats. It prevents internal sparks from igniting fuel vapours, a critical risk reduction feature for engine rooms and fuel locker installations. The casing is also designed to IP66 standards (when properly mounted), protecting internal contacts from harsh marine environments.

Versatile Mounting and Installation

Installation flexibility is a standout feature of the m-Series. The case design allows for three mounting options: surface, front panel, or rear panel mounting, accommodating various console and bulkhead thicknesses. The isolating cover includes snap-on sections to protect rear contacts, ensuring compliance with ABYC requirements.

The switch features 3/8"-16 (Approx. M10) terminal studs which accept ring terminals comfortably. To accommodate heavy cabling, the design provides ample clearance for cables up to 4/0 AWG (Approx. 120mm²).

Future-Proof Voltage Handling

While commonly used in 12V battery systems, this switch is rated for a maximum of 48V DC. This makes it fully compatible with modern 24V and 48V lithium battery banks often found in advanced off-grid energy systems and electric propulsion setups.

Key Features

  • High Current Capacity: 300A continuous and 900A cranking rating in a compact "mini" size.
  • Ignition Protected: Safe for installation aboard petrol-powered vessels.
  • Wide Voltage Range: Suitable for 12V, 24V, and up to 48V DC systems.
  • Conductive Design: 3/8"-16 (Approx. M10) tinned copper studs for maximum conductivity and corrosion resistance.
  • Flexible Mounting: Surface, rear, or front panel mounting options with snap-out isolation covers.
  • Tactile Operation: Robust knob with positive click-stop positions for clear ON/OFF status.

Secure Your Electrical System

Ensure your vessel or vehicle is equipped with a master switch that meets professional safety standards. Install the Blue Sea m-Series Switch today for reliable circuit isolation and peace of mind on the water or the road.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 44181811002

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4.1 ★★★★★
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Scout Kelly
Birmingham, US
★★★★★ 5
Perfect for Creating Private Spaces Without the Hassle
Color: Black, Size: 3 Panel Standard, Color: Black, Size: 3 Panel Standard
I recently picked up this Kecreque 3-panel room divider because we needed a flexible way to break up space in our garage. I wanted a place to hook up a small tv and play my SuperNES — and honestly, it’s been a fantastic purchase! First off, it’s bigger than it looks in pictures — fully opened, it stretches over 8 feet wide and stands about 6 feet tall. The panels are made of a thick, waterproof polyester fabric that feels much sturdier than I expected for the price. Plus, the steel frame is scratch- and rust-resistant, and the curved feet make it really stable. (No wobbling or tipping, even when our cats decide to race past it at full speed.) Assembly was straightforward — my husband did it himself in under 30 minutes with just the included instructions. The panels clip into the frame easily, and you can adjust the angle of each section depending on how much space you want to close off. It’s also surprisingly easy to move and fold up if you need to put it away; I just fold it flat and tuck it into a corner when it’s not in use. I really appreciate how low maintenance it is too — a quick wipe with a damp cloth has kept it clean. It’s been great for creating a semi-private video game nook, but I can also see it being perfect for an office, a church event, or even a kids’ room (the ad says it can “calm down arguments,” and honestly, I can believe it). Final thoughts: This is a sturdy, well-made, and versatile divider that’s easy to set up, reposition, and store. It looks clean and simple in any area or room and has held up well to daily use. Highly recommend if you need a practical and stylish way to create private spaces without committing to permanent walls!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2025
A
Aryn The Libraryan
West Palm Beach, US
★★★★★ 5
Quality, and not overly complicated
Color: Black, Size: 3 Panel Standard, Color: Black, Size: 3 Panel Standard
This is so easy to put together, the parts are numbered, and the wordless instructions are clearer than some I've seen. The material/fabric is pleasant to the touch, and of decent quality. I like that the panels can be used independently of each other, or connected together, depending on your space. Also, the cloth velcros onto the frame, so it can be removed easily for cleaning if need be, without unbolting anything. The combined weight in the box is decent, but once built, each panel is fairly light and easy to move around, while feeling sturdy/not going to fall over unless they're being mistreated. It's a bright sunny afternoon, and I took a picture looking towards a window, so you can see it blocks most things unless directly silhouetted by the bright light on the other side.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2025
T
Terry
Charlottesville, US
★★★★★ 5
Great purchase, easy to put together and maneuver and does the job
Color: Black, Size: 3 Panel Standard
Easy enough to put together, the nylon curtaining is a bit thin so will either replace or just pin something decorative and thicker to it. Easy to maneuver and does what you need it to do. Right now its leaned against a set of french doors in my room which unfortunately reflect headlight from the street into the room. This has been very useful for blocking that, Also have used it for the intended purpose of privacy other places also. you can also pin the kids pictures to it to show them off, Think outside the box with this nice screen.
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Reviewed in the United States on May 24, 2025
E
El'Jaie
Whiting, US
★★★★★ 5
Divide and Conquer
Color: Black, Size: 3 Panel Standard
Multi paneled room divider. I selected black, but it does come in a couple other color choices. This divider is solidly made, weighted. This dividers provide a measure of privacy for sleeping quarters, dressing, or to conceal a messy room or things you just don't want openly viewed by others. Portable, but again it's solid so it has some weight to it. No skid bottoms and a really reasonable/affordable price. Delivery was only a couple days.
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Reviewed in the United States on May 17, 2025
P
Verified Purchase
Patrick
Natrona Heights, US
★★★★★ 1
3 Pairs of Dirty Socks
Colour Name: White (6-pairs), Size Name: M, Colour Name: White (6-pairs), Size Name: M
I am in disbelief to be receiving the socks in such unacceptable condition. I am very sure I didn’t make a special order for dirty socks. Sending this back for a refund
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Reviewed in Singapore on 20 October 2024

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