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Blue Sea - Circuit Breaker Switch Panel - Water Resistant - 4 Position - Pn. 4321

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MPN 4321


Delivery Information

Currently we only deliver to the UK (inc. Northern Ireland), Channel Islands, Norway, Australia, New Zealand, Canada and USA for online ordering - please contact us on sales@bottomlinemarine.com if you live elsewhere.

Free shipping on UK orders over £65 (£5.95 for UK orders under £65)
Excludes certain heavy items
All prices include UK VAT - No customs or duty fees for UK orders


Water Resistant Circuit Breaker Switch Panel - 4 Position + Dual USB & 12V socket.

PN 4321

Provides circuit protection, switching, USB charging and 12V socket in a compact and economical panel.

Designed for exposed mounting applications

Illuminated 15A circuit breakers provide switching, ON indication and overcurrent protection

Industry-standard sizes and mounting allow these panels to be easily retrofitted in an existing application

Polycarbonate/ABS panel surface is UV-stabilized, flame retardant, and will not corrode

Silicon breaker boots and gasket protects against water ingress

Low profile makes it easy to install in tight spaces

Fast-on circuit breaker connectors make it quick to wire

Two-wire connection for powering all panels is simple and requires #10 ring terminals. Terminals screw to bus bars for secure connections

Set of 15 square format circuit labels are included, and are easy to replace. Additional standard or custom labels are available through Blue Sea Systems


Nominal Voltage: 12V DC

Amperage Max. Operating: 45A

Terminal Type: 1/4" Male quick connect

Hardware: S/Steel #6 × 5/8" mounting screws

Ring Terminal Size: M5 (#10)

Regulatory: Panel front is IP66 when mounted with gasket in place - protected against powerful water jets.

Width - 117.47mm
Height - 168.27mm
Depth - 44.45mm
Width (hole centres) - 104.77mm
Height (hole centres) - 155.57mm

Specification List

Type Switch/breaker panel EAN 632085043216
Sub-Type Waterproof type Country/Region of Manufacture United States