e-Series Selector Battery Switch with AFD - e-Series Selector Battery Switch with AFD

e-Series Selector Battery Switch with AFD - Mounting Diagram

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Blue Sea Systems

9002E-BSS

Battery switch e-Series selector with AFD

Designed for inboard engines, the Blue Sea e-Series 9002E-BSS battery selector with AFD manages two battery banks with a continuous current rating of 350A. Its alternator field disconnect function protects the alternator diodes, and IP66 certification ensures marine durability. The battery selector is supplied alone.

Retail priceBenefit from the professional rate

68,04€

68,04€ ~~78,30€~~

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In stock

Free pickup point shipping over €150 in France
Pickup at Skysat possible

Custom installation

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Request a quote

Installers near you

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Support service

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Technical specifications

Product use	Power management of marine electrical systems, battery bank selection and combination, emergency start.
Switch type	4-position selector
Courant continu (A)	350
Courant intermittent (A)	600
Courant de démarrage (A)	1200
Maximale tension dc	32
Nombre de pôles	1
Positions	4 (OFF, 1, 2, 1+2)
Protection AFD	Oui
Type de borne	Dowels, tinned copper
Terminal size	3/8"-16 (M10)
Type de connexion câblage	Eyelet terminals under screw
Type de contrôle	Rotary knob
Mounting type	Surface or panel mounting
IP rating	IP66
Operating voltage range	0-32V DC
Diamètre de découpe du panneau	92.08
Weight	0.52
Dimensions (W x H x D)	98 x 98 x 79 mm
Warranty	99.0
Couleur de l'actionneur	Black
Actuator Feedback Type	Touchscreen
Style d'actionneur	Rotary knob
Amperage	350
Cable Entry Count	5
Organisme de certification	IMCI
Compatible engine type	Inboard gasoline and diesel engines
Flange Nut Material	Stainless steel
Installation type	Surface / panel mounting
Voyant lumineux	false
Make Before Break Feature	Yes
Mounting Hole Pattern Compatibility	PERKO, Guest
Operation Restriction Engine Running	Yes
Type de produit	Battery switch
Fonction de l'interrupteur	Select and combine battery banks
Terminal Stud Design Type	Monobloc
Warranty Period Text	Lifetime

Detailed description

Designed for power management in marine electrical systems, the Blue Sea e-Series 9002E-BSS battery selector with AFD provides a solution for applications requiring reliable power supply and advanced alternator protection. This switch allows selection of battery bank 1 or 2, or combining them (1+2) for charging or emergency starting.

Advanced protection with integrated AFD

The Alternator Field Disconnect (AFD) integrated into the Blue Sea e-Series 9002E-BSS battery selector is a critical safety feature. It protects the alternator diodes from potential damage when switching to the OFF position while the engine is running. By interrupting the alternator field wire, the AFD reduces its output to zero, preventing destructive voltage spikes. This functionality is crucial for the longevity of your charging system.

Performance and marine construction

The 9002E-BSS is rated for inboard gasoline and diesel engines, supporting a continuous current rating of 350A, an intermittent rating of 600A for 5 minutes, and a starting current of 1200A for 30 seconds, at a maximum voltage of 32V DC. The 3/8"-16 (M10) tinned copper terminal studs, 7/8" (22.22 mm) long, ensure maximum conductivity and high corrosion resistance while allowing connection of multiple 4/0 AWG (95mm²) cable lugs. The recommended torque for the terminals is 15.82 N·m (140 in-lb). The "make-before-break" function ensures switching between battery banks without power interruption, essential for critical systems.

Safety, compliance, and positioning

This switch meets ignition protection requirements (UL 1500, SAE J1171, ISO 8846), making it safe for installations on gasoline-powered boats. Its robust design, with an IP66 protection rating, protects against dust and powerful water jets, ensuring durability in marine environments. The housing allows surface or rear-panel mounting and is compatible with most PERKO and Guest battery switch drill templates. The Blue Sea e-Series 9002E-BSS stands out with its integrated AFD and IP66 protection, essential features for safety and durability in marine environments. It uses tinned copper terminal studs for superior conductivity and corrosion resistance, and accepts 4/0 AWG cables, ensuring optimal power management for demanding applications. Its compliance with ABYC E-11 and UL 1107 standards confirms its reliability and performance in marine environments.

Documentation

Type	Nom
	EN - Instructions - e-Series Selector Battery Switch with AFD
	EN - M Series, E Series, and HD Series Battery Switch Operation Diagrams - e-Series Selector Battery Switch with AFD
	EN - E Series Battery Switches - e-Series Selector Battery Switch with AFD
	EN - Manual - e-Series Selector Battery Switch with AFD
	EN - Certificate - e-Series Selector Battery Switch with AFD
	EN - Certificate - e-Series Selector Battery Switch with AFD
	EN - Certificate - e-Series Selector Battery Switch with AFD

Expert opinion

Pol CONIN

Digital Manager

« Technical analysis of the Blue Sea e-Series battery selector with AFD »

The Blue Sea e-Series battery selector with AFD, part number 9002E-BSS, is a critical component for electrical management on boats equipped with inboard engines, whether gasoline or diesel. Its primary function, alternator field disconnection (AFD), is a key operational feature. It eliminates the risk of damaging alternator diodes, a common and costly scenario if a standard switch is toggled to OFF while the engine is running. This built-in protection is a decisive advantage over switches lacking this feature, where a handling error can lead to expensive repairs.

Installation is straightforward thanks to its versatile design, allowing surface or rear-panel mounting. It accommodates heavy-gauge battery cables up to 4/0 AWG, and its tinned copper studs ensure optimal conductivity and long-term corrosion resistance. This robustness is reinforced by its IP66 rating, making it suitable for marine environments exposed to spray and water spray. It is particularly relevant for vessels where power supply reliability is critical, such as cruising sailboats or mid-sized powerboats requiring precise management of two battery banks.

While designed for efficient management of two battery banks and alternator protection, it is essential to follow installation procedures, including terminal torque settings and correct AFD wiring. It does not replace an advanced battery manager for complex systems with multiple charging sources, but excels in its role as a robust and secure selector for classic starting and service configurations.

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Battery switch e-Series selector with AFD

68,04€

68,04€ ~~78,30€~~

Frequently Asked Questions

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What are the main functions of this Blue Sea e-Series battery selector?

This battery selector manages two battery banks. You can select bank 1, bank 2, or combine both (1+2) for charging or emergency starting.

What is the integrated AFD function and what is it used for?

AFD stands for "Alternator Field Disconnect." It is an essential safety function that protects the alternator's diodes from damage. If the switch is turned to the OFF position while the engine is running, the AFD disconnects the alternator's field wire, reducing its output to zero and preventing destructive voltage spikes.

What is the maximum continuous DC current rating this selector can handle?

The Blue Sea e-Series 9002E-BSS battery selector has a continuous rated current of 350 amperes.

What is the maximum operating voltage of this switch?

The maximum operating voltage of this switch is 32V DC.

Is this product ignition-protected?

Yes, this battery selector switch is marked "Ignition Protected". It meets the external ignition protection requirements of UL 1500 and SAE J1171.

Is the switch housing water-resistant?

Yes, the switch housing is rated IP66, meaning it is protected against powerful water jets.

What are the different switch positions available on this selector?

This selector offers four positions:

OFF: Off. 1: Selects battery bank 1. 2: Selects battery bank 2. 1+2: Combines battery banks 1 and 2.

What are the dimensions of the terminal studs and what material are they made from?

The terminal studs are made of tinned copper, measure 3/8"-16 (M10), and have a length of 7/8" (22.22 mm). They are manufactured in one piece for maximum conductivity, corrosion resistance, and to reduce the risk of overheating.

What is the intermittent nominal current rating of this switch?

The intermittent nominal current rating of this switch is 600 amperes for 5 minutes (per UL 1107).

What is the cranking rating of this selector?

The cranking rating of this selector is 1200 amps for 30 seconds.

Where should I install the battery selector?

The battery selector must be installed in an easily accessible location close to the batteries. Its design allows for surface mounting or rear-panel installation.

What type of battery cable is recommended for this switch?

To meet current specifications, use 4/0 AWG (95mm²) battery cables per terminal.

What is the recommended torque for battery cable terminals?

The recommended torque for battery cable terminals is 15.82 N·m (140 in-lb).

How to connect the AFD (Alternator Field Disconnect) device?

To connect the AFD, disconnect the field wire running from the alternator to the voltage regulator. Connect one end to terminal F1 and the other end to terminal F2 on the selector.

Are there any precautions to take before installation?

Yes, it is imperative to disconnect the battery's positive terminal before any installation. It is also advisable to consult a marine electrician for proper wiring and installation information compliant with NFPA 302 and/or ABYC E11 standards.

Can I switch the switch to the OFF position while the engine is running?

No, you must never switch the switch to the OFF position while the engine is running. It is recommended to turn off all electrical devices before setting the battery switch to OFF.

Which types of engines is this battery selector suitable for?

This battery selector is designed for high-power applications and is suitable for inboard gasoline and diesel engines.

Is this selector compliant with maritime standards?

Yes, it complies with all American Boat and Yacht Council (ABYC) requirements for battery switches. It is also UL listed (UL 1107 for power switches) and meets external ignition protection requirements UL 1500 and SAE J1171. It is CE certified and compliant with ISO 8846.