Blue Sea Systems Switch Battery E-Series Dual Circuit Plus Battery switch - 5511e

The Blue Sea Systems 5511e E-Series Dual Circuit Plus Battery Switch allows you to safely and efficiently manage a dual battery system. Ideal for marine or RV setups, this switch provides isolated or combined battery switching with no power interruption thanks to its "make before break" design.

£ 77.14 77.14 GBP £ 77.14 VAT Included

£ 64.28 VAT Included

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- Blue Sea Systems

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Brand (old): Blue Sea Systems

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Internal Reference: 117822

The Blue Sea 5511e Dual Circuit Plus Battery Switch is a premium-grade solution designed for managing two independent batteries in marine, RV, or off-grid electrical systems. Whether you’re separating a starter battery from a house battery or integrating both for combined power, this switch provides robust and safe control over your battery setup.

This model features a “Combine” position, which allows both batteries to be connected in parallel—ideal for emergency starting or maximising available power. The make-before-break contact system ensures continuous power flow while switching between banks, preventing sudden drops or disconnection damage to sensitive electronics.

Built from marine-grade, corrosion-resistant materials, it’s safe for use in both petrol and diesel environments, being ignition protected. The unit can be surface-mounted or rear panel-mounted, giving you flexibility during installation.

This switch supports high amperage (up to 1000A cranking for 10 seconds) and operates up to 32V DC, making it compatible with most 12V and 24V systems. Terminal studs accept M10 (3/8") ring terminals and are torque rated for secure and reliable connections.

IMPORTANT NOTICE:

Please note that the images of the product shown above are for illustrative purposes only.

While we strive to provide accurate representations, there might be slight differences between the product image and the actual product you receive. These variations could be due to lighting, individual screen settings, product enhancements, or minor design updates from the manufacturer.

We assure you that any discrepancies are minimal and will not affect the overall quality and functionality of the product.

If you have any questions or concerns, please feel free to contact our customer support team for further assistance at support@batsol.co.uk or phone us at 01752 656270.

At Batteries and Solar, your satisfaction is our top priority, and we are committed to providing the best shopping experience for you.

Thank you for choosing Batteries and Solar for your purchase.

Dual Circuit Plus Design – Isolates starter and house batteries or combines them as needed
“Combine” Function – Connects both batteries in parallel for extra power or emergency use
Make-Before-Break Contact – Ensures no power interruption when switching
Surface or rear panel mountable for flexible installation
Marine-grade materials – Built for corrosion resistance in harsh environments
Ignition protected – Suitable for both diesel and petrol applications
High amperage ratings – Handles up to 1000A for cranking, 350A continuous

Attribute	Value
Product Type	Dual Circuit Battery Switch
Brand	Blue Sea Systems
Model	5511e E-Series
Cranking Rating (10 sec)	1000A
Intermittent Rating (5 min)	525A
Continuous Rating	350A
Voltage (Max Operating)	32V DC
Terminal Stud Size	3/8"–16 (M10)
Terminal Stud Torque	140 in-lb (15.82 Nm) max
Mounting Holes	Accept M6 screws
Recommended Cable Size	4/0 AWG (120mm²)
Mounting Type	Surface or rear panel
Ignition Protected	Yes