£42.39

Blue Sea Systems 2151 Dual MRBF Terminal Fuse Block - 300A

Double Fuse, 2151

Price data updated today

View at Amazon

We'll watch every seller, every day. One email when your price arrives.

This is the usual price. Wait for it to drop, or tell us your number.

£42 today · usual range £37–£50 · best ever £37

NEW HERE?

Amazon shows you one price. We show you all of them.

Tosheroon watches Amazon prices so you don't have to. Every product on Amazon has a price history — we make it visible. Set the price you'd actually pay, and we'll email you the second it gets there. No app, no account, one email.

WHAT'S ON THIS PAGE

↓ Price chart
when this has been cheap or pricey
↓ Forecast
where the price is heading next
↓ Statistics
all-time high & low, recent range
↑ Price alert
name your number, we'll email you

Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 91 days · 91 data points

Historical
Generating forecast…
£49.99 £35.65 £38.78 £41.91 £45.03 £48.16 £51.29 08 July 2026 30 July 2026 22 August 2026 13 September 2026 06 October 2026

Price Distribution

Price distribution over 91 days • 5 price ranges

Days at Price
Current Price
3 days 32 days 20 days · current 8 days 28 days 0 8 16 24 32 £37-40 £40-42 £42-45 £45-47 £47-50 Days at Price

Price Analysis

Most common range: £40-42 (32 days, 35.2%)

Price range: £37 - £50

Price levels: 5 price ranges over 91 days

Description

Protect your marine electrical systems with the Blue Sea Systems 2151 Dual MRBF Terminal Fuse Block. Designed for high-current applications, this compact block provides reliable circuit protection for DC Mains, inverters, windlasses, and bow thrusters. It is an ideal solution for boaters needing to save space without sacrificing safety. The new isolated stud design uses standard M8 (5/16") hardware and allows for terminal stacking, making installation more flexible. This weatherproof component is built to handle harsh environments, making it suitable for small open-cockpit boats. For added safety, an insulating cap helps prevent accidental shorts, and the unit is ignition protected when paired with MRBF fuses. Whether you are managing power for heavy-duty equipment or protecting main battery lines, this fuse block delivers high-amp protection in a small footprint. Please note that fuses are sold separately, allowing you to select the specific 30A to 300A rating required for your specific electrical setup.

Key Features

Provides high-amp circuit protection in a compact design, making it perfect for tight spaces and high-demand equipment like windlasses or bow thrusters.

Features a new isolated stud design that uses standard M8 (5/16") hardware and permits the stacking of terminals for improved versatility.

Built for durability in harsh environments, this weatherproof fuse block is suitable for use on small open-cockpit boats.

Enhances safety with an insulating cap that prevents accidental shorts and provides ignition protection when used with MRBF fuses.

Supports a wide range of protection needs with compatible terminal fuses available from 30A to 300A.

Designed for heavy-duty DC applications with a maximum operating voltage of 58V DC and up to 300A per block.

Product Specifications

Model
2151
Colour
Double Fuse
Size
30 To 300a
Domain
Amazon UK
Listed Since
07 August 2012

Barcode

No barcode data available