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BLUE SEA Battery Switch, 300 A

SVB item number: 20178 Manufacturer no.: 6006
View Ratings (32) Questions (0)
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Mikael A. H.: "Very solid master switch for 24V LFP system"
Used on a Sciallino s.r.l. Sciallino S 23 Cabin
Used on a Jeanneau Jeanneau Merry Fisher 605
Used on a Humlebæk Boatyard Hinrichsen 34
Used on a Najad 320
Used on a Hallberg-Rassy 42
Is in 14 shopping baskets right now, grab yours now!
Has been sold 12 times in the last 7 days
Compact and flexible! Suitable for outboard motors, small petrol or diesel engines. The m-series battery disconnect switches fulfil the American Boat and Yacht Council requirements.
Product details
only  €44.95
39 | in stock
pcs.
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At a glance!

12 V
12 V
24 V
24 V
48 V
48 V
36 V
36 V
Plastic
Plastic
customers like: Switch function
customers like: Switch function
customers like: Quality
customers like: Quality
by Mario M.
Super product Versatile.
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Positive aspects: Sturdy casing with a versatile design. \ R \ n Negative aspects: The spring of the selector is not very rigid so that the on / off trigger is not dry.
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by Marko R.
I received the item as promised and I think that the switch is a valid product.
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by Peter M.
Great, I am very satisfied
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by Alfredo C.
Excellent value for money \ r \ nBLUE SEA brand that does not need advertising .- \ r \ n
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Product data

  • SVB item number 20178
  • EAN 632085060060
  • Manufacturer no. 6006
  • Description BLUE SEA - Battery Switch, 300 A
  • Operating voltage 12 V, 24 V, 48 V, 36 V
  • Continuous output 300 A
  • Max. load capacity 1500 A
  • Switch position 2
  • Switch function Main switch
  • Connector pins M10
  • Material Plastic

Product details

The m-series battery disconnect switches fulfil the American Boat and Yacht Council (ABYC) requirements and are suitable for outboards, small petrol and diesel engines. The handy switch allows comfortable operating. The switch is designed for operating voltages of 6 - 48 volts. Typical charging voltages of up to approx. 58 V, such as those found in LiFePO4 batteries, are also taken into account. Flexible mounting options: rear panel, front panel or surface. Fixing screws are not included.

  • Maximum voltage: 48 V
  • load capacity:
    continuous load: 300 A,
    max. 5 minutes 500 A,
    max. 10 seconds 1500 A
  • Connecting bolt: 10mm (3/8"-16), tin-plated copper
  • Tightening torque: 13.56Nm (120 in-lb)
  • Dimensions: 72 x 72 x 78 mm
  • IP66 protected against strong water jets

Documents

en-flag Manual
PDF (278,24 KB)
multi-flag Drawing
PDF (122,77 KB)

Product safety

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What other SVB customers have to say

100% real reviews

32 customer reviews

4.6 (out of 32 ratings)
5 Stars
(21)
4 Stars
(10)
3 Stars
(1)
2 Stars
(0)
1 Stars
(0)
  • Advantages
  • Switch function (3)
  • Connection options (2)
  • Price/performance ratio (2)
  • Quality (3)
  • Mounting/Installation (2)
  • Load (3)
  • Material (2)
  • Disadvantages
  • Connection options (1)
  • Price/performance ratio (1)
  • Mounting/Installation (1)
All reviews Ratings with Image Latest ratings 5
4
3

Customer images (1) from all reviews

Image 1 of 1
MFK-Media M.
by MFK-Media M. Flag of Austria 7/9/2025 Verified purchase in use on a Jeanneau - Jeanneau Merry Fisher 605
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Strict but perfect
Turning the switch requires a bit of force, but that's perfectly acceptable for precise contact closure. Compared to cheap Chinese products, this and similar models are used by these shipyards even in the most expensive boats. Quality costs money, but it works... for a long time.
  • Advantages
  • Switch function
  • Connection options
  • Price/performance ratio
  • Quality
  • Mounting/Installation
  • Load
Matthias K.
by Matthias K. Flag of Germany 1/6/2025 Verified purchase
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Topo quality
The switch is perfect - switches very tightly and well. The sturdy frame makes it very easy to attach to smooth surfaces and you can rotate the frame as needed so that the cables can be connected easily.
Reinhardt G.
by Reinhardt G. Flag of Germany 11/1/2023 Verified purchase
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Solid and high quality, well made!
Latitude 1.
by Latitude 1. Flag of Italy 7/27/2023 Verified purchase
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Good and durable switch
Battery master switch
Luis Filipe V.
by Luis Filipe V. Flag of Portugal 3/31/2022 Verified purchase
Very useful and easy to install (put in place)
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BLUE SEA Battery Switch, 300 A
View Ratings (32) Questions (0)
€44.95
VAT inc., ex-works