e-Series On Off Battery Switch - e-Series On Off Battery Switch

e-Series On Off Battery Switch - Mounting Diagram

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Blue Sea Systems

9003E-BSS

e-Series ON/OFF battery switch

Designed for inboard gasoline and diesel engines, the BLUE SEA e-Series 9003E-BSS battery switch offers reliable isolation of a single battery. It handles 350A continuously and 1200A at start, with a maximum voltage of 48V DC. Spark-proof and IP66 rated, it ensures marine-grade safety and durability. No specific accessories are included with the battery switch itself.

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£44.58 GBP

£44.58 GBP ~~£48.75 GBP~~

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In 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

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Support service

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Technical specifications

Product use	Designed for reliable management of a single battery or battery bank on board, suitable for applications requiring high power output, including gasoline and diesel inboard engines.
Switch type	Single ON/OFF circuit
Courant continu (A)	350
Courant intermittent (A)	600
Courant de démarrage (A)	1200
Maximale tension dc	48
Nombre de pôles	1
Positions	2 (ON/OFF)
Type de borne	Tinned copper studs
Terminal size	3/8"-16 (M10)
Type de connexion câblage	Ring terminals
Type de contrôle	Rotary knob
Mounting type	Surface or rear/front panel mounting
IP rating	IP66
Operating voltage range	Up to 48V DC
Diamètre de découpe du panneau	40.39
Housing material	Plastic
Weight	0.43
Dimensions (W x H x D)	97.79 x 97.79 x 76.20
Couleur de l'actionneur	Red
Style d'actionneur	Rotary
Amperage	350
Cable Clearance Mm	27.9
Cable Size To Meet Ratings Awg	4/0 AWG
Cable Size To Meet Ratings Mm2	95
Ignition protection standard	UL 1500, SAE J1171
Installation type	Surface or rear/front panel mounting
Voyant lumineux	No
Max Terminal Stud Torque Nm	15.82
Mounting Centers Mm	76
Fastening type	1/4" (M6) screw
Nominal voltage	48.0
Nombre de prises	0
Poids net du produit	0.43
Type de produit	Battery isolator
Fonction de l'interrupteur	Battery disconnection
Terminal Stud Length Mm	22.22
Terminal Stud Material	Tinned copper

Detailed description

The BLUE SEA e-Series ON/OFF battery switch (part number 9003E-BSS) is designed for reliable management of a single battery or battery bank on board. With a continuous rating of 350 amperes and a 1,200-ampere peak for 30 seconds, it is suitable for high-power output applications, including gasoline and diesel inboard engines.

Robust Design and Marine Safety

This model features 3/8"-16 (M10) tin-plated copper studs for maximum conductivity and enhanced corrosion resistance. The one-piece stud design minimizes heat buildup and ensures a stable connection. The 22.22 mm (7/8") stud length accommodates multiple cable lugs, simplifying integration into complex systems. Additionally, the 9003E-BSS is ignition-protected, meeting UL 1500 and SAE J1171 standards, making it safe for installation on gasoline-powered boats.

Installation and Compliance

The e-Series battery switch housing allows for surface or rear-panel mounting, providing installation flexibility. It accepts battery cables up to 4/0 AWG (95 mm²), ensuring compliance with current specifications. The recommended torque for terminals is 15.82 N·m (140 in-lb). This battery switch meets ABYC (American Boat and Yacht Council) requirements for battery switches, is UL 1107 certified, CE marked, and features IP66 protection against powerful water jets, ensuring durability in marine environments. Unlike other e-Series variants such as the 9001e or 9002e selectors, the 9003E-BSS is a simple ON/OFF switch, focusing on direct and secure disconnection of a single battery, with a maximum operating voltage of 48V DC—higher than models typically limited to 32V DC in the same category for similar functions.

Documentation

Type	Nom
	EN - Instructions - e-Series On Off Battery Switch
	EN - M Series, E Series, And HD Series Battery Switch Operation Diagrams - e-Series On/Off Battery Switch
	EN - E Series Battery Switches - e-Series On Off Battery Switch
	EN - Manual - e-Series On Off Battery Switch
	EN - Certificate - e-Series On Off Battery Switch
	EN - Certificate - e-Series On Off Battery Switch
	EN - Certificate - e-Series On Off Battery Switch

Expert opinion

Pol CONIN

Digital Manager

« Technical analysis: BLUE SEA e-Series 9003E-BSS battery switch »

The BLUE SEA e-Series 9003E-BSS battery switch is a fundamental component for safety and energy management aboard. Its simple ON/OFF function is designed primarily for direct disconnection of a single battery or a battery bank, which is crucial for maintenance, winter storage, or in emergencies. Its continuous rating of 350 amps and peak of 1200 amps at engine start make it perfectly suited for starting circuits of medium to high-power inboard gasoline and diesel engines, where reliability is paramount.

Its IP66 protection rating and monobloc tinned copper stud design ensure durability and corrosion resistance in marine environments, outperforming many generic switches. Installation is simplified by surface or flush-mount options, and compatibility with Perko/Guest drill templates reduces the need for modifications during replacement. It is essential to respect the 15.82 N·m torque for 4/0 AWG cable connections to avoid overheating or performance loss. This model, with its maximum voltage of 48V DC, offers superior versatility for modern onboard electrical systems compared to 32V DC-only solutions.

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e-Series ON/OFF battery switch

£44.58 GBP

£44.58 GBP ~~£48.75 GBP~~

Frequently Asked Questions

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What is the primary function of the BLUE SEA e-Series ON/OFF battery switch?

The BLUE SEA e-Series ON/OFF battery switch is designed to disconnect a single battery bank in emergencies or when the vessel is not in use. It is ideal for applications requiring high power output, reliability, and low heat generation, particularly for inboard gasoline and diesel engines.

What are the current ratings for this battery switch?

This battery switch has the following current ratings:

Starting current (30 sec.): 1 200 amperesIntermittent current (5 min. UL 1107): 600 amperesContinuous current: 350 amperes

What is the maximum operating voltage of the e-Series battery switch?

The maximum operating voltage for this e-Series battery switch is 48V DC.

Is the battery switch protected against ignition?

Yes, the BLUE SEA e-Series ON/OFF battery switch is protected against ignition. It meets the external ignition protection requirements UL 1500 and SAE J1171, making it safe for installation on gasoline-powered boats.

What are the advantages of tinned copper terminal studs?

The 3/8"-16 (M10) tinned copper terminal studs offer several advantages:

Maximum conductivity for efficient power transfer.Excellent corrosion resistance, essential in a marine environment.A one-piece design that reduces the risk of overheating and ensures a stable connection.A length of 22.22 mm (7/8") allowing multiple cable terminals to be accepted.

Is this battery switch waterproof?

Yes, this battery switch is rated IP66, meaning it is protected against powerful water jets. This ensures its durability in a marine environment.

Does the switch button provide tactile feedback on its position?

Yes, the battery switch is equipped with a tactile indicator that conveys the button's position through touch, providing physical confirmation of the switch state (ON/OFF).

What are the dimensions of the terminal studs and what is the recommended tightening torque?

The terminal studs are tin-plated copper, 3/8"-16 (M10), with a length of 22.22 mm (7/8"). The recommended tightening torque for the terminals is 15.82 N·m (140 in-lb).

Where should I install the battery switch?

The battery switch must be installed in an easily accessible location near the batteries. Its design allows for surface or rear-panel mounting, providing installation flexibility.

What type of battery cable is recommended for this battery switch?

To meet current specifications, use battery cables up to 4/0 AWG (95mm²). Attach one 4/0 AWG cable per terminal.

Are there any precautions to take before installation?

Yes, before installing the battery isolator, it is imperative to disconnect the positive terminal of the battery. It is also advisable to consult a marine electrician to ensure correct and secure wiring.

How should battery cable terminals be secured?

Battery cable terminals must be secured under the nut. The recommended torque is 15.82 N·m (140 in-lb) to ensure a safe connection and prevent overheating.

Is the battery switch compatible with other brands' mounting hole patterns?

Yes, the housing design of this battery switch is compatible with most mounting hole patterns of PERKO and Guest battery switches, making replacement or integration easier.

What operations should be avoided when using the battery switch?

When using the battery switch, it is important to:

Turn off all electrical devices before switching to the OFF position.Never switch to OFF while the engine is running, as this could damage the alternator.

Is this battery switch suitable for inboard gasoline and diesel engines?

Yes, this BLUE SEA e-Series ON/OFF battery switch is specifically designed for high-power output applications, making it suitable for inboard gasoline and diesel engines.

Which battery system types is this battery switch compatible with?

This model is a single-circuit ON/OFF switch, meaning it is designed to manage and disconnect a single battery bank from a single load group. It is compatible with 12V, 24V, and 48V DC battery systems.

Does this battery switch comply with maritime standards?

Yes, this battery switch complies with several important maritime standards:

It meets all ABYC (American Boat and Yacht Council) requirements for battery switches.It is UL 1107 certified for electrical power switches.It is CE marked and complies with UL 1500 and SAE J1171 external ignition protection requirements.

What is the warranty policy for Blue Sea Systems products?

Blue Sea Systems offers a satisfaction guarantee. Any Blue Sea Systems product a customer is not satisfied with can be returned for a refund or replacement at any time.

What is the function of the e-Series battery switch compared to battery banks?

The e-Series ON/OFF battery switch is a single-circuit switch. Its function is to disconnect a single battery bank from a single load group, allowing isolation of potentially destructive battery energy when the vessel is not in use or in an emergency.

Is the battery switch compatible with electrical systems requiring ignition protection?

Yes, this battery switch is designed to be compatible with electrical systems that require ignition protection. It is marked "Ignition Protected" and meets the requirements of UL 1500 and SAE J1171 standards, making it safe for installation in engine compartments where gasoline vapors may be present.