Sélecteur de batterie série m 300A rouge 3 positions - m-Series Selector 3 Position Battery Switch - Red

Battery selector switch series M 300 A red 3 positions

Free pickup point from €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

Request a quote

Installers near you

thanks to our network of approved installers

Find an installer

Support service

Opt for additional installation assistance

Save 9%

Blue Sea Systems

6008B-BSS

Battery selector switch series M 300 A red 3 positions

Designed for outboard and small inboard engines, the BLUE SEA m-Series 300A (6008B-BSS) battery selector switch provides reliable management of two battery banks. This compact 3-position switch (OFF/1/2) is IP66 rated and spark-proof, ensuring secure isolation of DC circuits up to 32V. It comes with an insulating cover to protect rear contacts.

Retail priceBenefit from the professional rate

£46.58 GBP

£46.58 GBP ~~£51.58 GBP~~

Shipping calculated at checkout.

Low stock

Free pickup point from €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

Request a quote

Installers near you

thanks to our network of approved installers

Find an installer

Support service

Opt for additional installation assistance

Technical specifications

Product use	Management of DC power systems on boats equipped with outboard motors or small gasoline/diesel engines, allowing selection of one of two batteries to power loads.
Switch type	3-position battery selector switch
Courant continu (A)	300A
Courant intermittent (A)	500A
Courant de démarrage (A)	900A
Maximale tension dc	32V
Nombre de pôles	1
Positions	3 (OFF/1/2)
Type de borne	Tinned copper studs
Terminal size	3/8"-16 (M10)
Type de connexion câblage	Eye terminals (for studs)
Type de contrôle	Rotary button
Mounting type	Surface mount, front panel mount, rear panel mount
IP rating	IP66
Operating voltage range	12/24V
Diamètre de découpe du panneau	59mm (rear mount), 67mm (front mount)
Weight	0.35 kg
Dimensions (W x H x D)	74.9 x 74.9 x 84.3 mm
Cable Size To Meet Ratings Awg	4/0 AWG
Cable Size To Meet Ratings Mm2	120
Color	Red
Ignition protection standard	UL 1500, SAE J1171
Max Terminal Stud Torque	13.56
Product type	Battery selector
Series	m
Terminal Stud Material	Tinned copper

Detailed description

The BLUE SEA series m 300A red battery selector, part number 6008B-BSS, is designed for managing DC power systems on boats equipped with outboard motors or small gasoline/diesel engines. This 3-position switch (OFF/1/2) allows selecting one of two batteries to power loads, with no combining function.

Design and Technical Specifications

With a continuous current rating of 300A and a 900A starting current for 30 seconds, the 6008B-BSS supports a maximum voltage of 32V DC. Its tinned copper terminals of 3/8"-16 (M10) ensure maximum conductivity and corrosion resistance, with a recommended tightening torque of 13.56 N·m. The one-piece terminal stud design guarantees stable connections over time. This model is ignition-protected per UL 1500 and SAE J1171 standards and has an IP66 rating.

Positioning in the BLUE SEA Range

The BLUE SEA series m, which includes the 6008B-BSS, is distinguished by its compact format and 300A continuous amperage, specifically targeting outboard motors and small gasoline or diesel engines. In comparison, the series e offers 350A continuous amperage for inboard gasoline or diesel engines, while the HD series is designed for large diesel engines with continuous amperage up to 600A. The 6008B-BSS, as a 3-position selector, focuses on battery isolation and selection, unlike 4-position or Dual Circuit Plus selector models that include battery combining functions. It also holds CE, ISO 8846 Marine, UL 1107, and UL 1500 certifications, and meets ABYC requirements.

Expert opinion

Pol CONIN

Digital Manager

« Technical analysis of the BLUE SEA m series 300A battery selector »

The BLUE SEA m series 300A battery selector, model 6008B-BSS, is a proven solution for managing power circuits on mid-sized vessels equipped with outboards or small inboards. Its utility lies in its ability to selectively isolate or connect two separate battery banks (e.g., house and start) to a load group, a critical function for electrical system safety and flexibility.

Installation of this selector is relatively straightforward, allowing surface or flush mounting via holes sized for #10 screws. It is essential to use 4/0 AWG (120 mm²) cables to achieve the continuous 300A nominal performance. Tightening terminals to 13.56 N·m is mandatory to ensure optimal electrical connections and prevent overheating. For systems requiring battery combinations for emergency start or simultaneous charging via an alternator, models from the BLUE SEA range such as 4-position selectors or Dual Circuit Plus switches, or the integration of an automatic coupler-distributor (ACR), should be considered.

This model features a "make before break" design, enabling switching between batteries without power interruption, thus protecting sensitive electronic equipment. Its Ignition Protected certification makes it safe for installation in gasoline engine compartments. It is particularly well-suited for cruising sailboats or small dayboats where simple and reliable manual battery management is preferred.

Durabilité

Facilité d'installation

Rapport performance / prix

Payment and security

Your payment information and data are processed securely.

Battery selector switch series M 300 A red 3 positions

£46.58 GBP

£46.58 GBP ~~£51.58 GBP~~

Frequently Asked Questions

Need help? Contact us

What is the main function of the BLUE SEA m 300A red 3-position battery selector?

This battery selector is designed to manage DC power systems onboard boats. Its main function is to allow selection of one of two batteries to power loads, without providing a battery combining function. It has three positions: OFF, BATTERY 1 (1), and BATTERY 2 (2).

What is the continuous rated current that this battery selector can handle?

The BLUE SEA m series 300A battery selector can handle a continuous rated current of 300 Amperes DC.

What is the maximum voltage supported by this battery selector?

This battery selector is designed for power systems up to 32 Volts DC. It is compatible with 12V and 24V systems.

Is this battery selector protected against ignition?

Yes, this selector is protected against ignition. It is marked and compliant with UL 1500 and SAE J1171 standards for external ignition protection, as well as ISO 8846 (Directive 94/25/EC).

What is the water resistance rating of this battery selector switch?

The BLUE SEA m 300A battery selector switch has an IP66 waterproof rating. This means it is protected against powerful water jets and dust.

What material are the selector's connection terminals made of?

The selector's connection terminals are made of tinned copper. This material ensures maximum conductivity and excellent corrosion resistance in a marine environment.

Can this battery selector combine batteries?

No, the M 300A red 3-position battery selector (model 6008B-BSS) does not have a battery combining function. It is designed to select a single battery at a time to power loads (positions 1 or 2).

What is the difference between the Blue Sea m series and the other Blue Sea switch series (e series, HD series)?

Blue Sea battery selector switch series differ primarily in their continuous amperage rating and the types of engines they are designed for:

The m series (such as this 6008B-BSS model) has a continuous amperage rating of 300A and is intended for outboard motors and small gasoline or diesel engines.The e series offers a continuous amperage rating of 350A for gasoline or diesel inboard engines.The HD series is designed for large diesel engines with a continuous amperage rating up to 600A.

What is the cranking rating of this battery selector?

This battery selector has a cranking rating of 900 DC amperes for 30 seconds.

What is the intermittent rating of this selector?

The intermittent rating of this selector is 500 Amps DC for 5 minutes, in accordance with UL 1107.

What type of battery cable is recommended for this selector?

To meet the rated current specifications, it is recommended to use a 4/0 AWG (120 mm²) battery cable per terminal.

What is the recommended torque for the selector terminals?

The recommended torque for the studs of the terminals is 13.56 N·m (120 in-lb). It is crucial to respect this torque to ensure a stable and secure connection.

How should this battery selector be installed?

This selector offers several mounting options:

Surface mounting: The selector is fixed directly onto a flat surface.Panel front mounting: Requires a 67 mm (2-5/8 inch) hole.Panel rear mounting: Requires a 59 mm (2-5/16 inch) hole.The recommended mounting hardware is #10 (M5) screws.

What precautions should I take before installing the battery selector?

Before installing the battery selector, it is imperative to:

Disconnect the battery's positive terminal.Consult a marine electrical professional to ensure correct and standards-compliant wiring (NFPA 302 and/or ABYC E11).

Can I turn the selector to the OFF position while the engine is running?

No, it is strongly recommended not to set the selector to the OFF position while the engine is running. This could damage the alternator or other components of the electrical system.

Is this selector compatible with 12V and 24V electrical systems?

Yes, this selector is compatible with 12V and 24V electrical systems, as its maximum operating voltage is 32V DC.

Is this selector suitable for large diesel engines?

No, this battery selector from the m series is rated for a continuous current of 300A, making it ideal for outboard motors and small gasoline or diesel engines. For large diesel engines, Blue Sea’s HD series selectors (up to 600A continuous) are more appropriate.

What are the certifications for this product?

This battery selector switch complies with several standards and certifications, including:

CE ISO 8846 Marine (ignition protection) UL Listed - UL 1107 (electrical power switches) UL 1500 (external ignition protection) SAE J1171 (external ignition protection) It also meets all ABYC (American Boat and Yacht Council) requirements for battery switches.