Battery Terminal Fuse Block 40A–300A M8

£12.00 Inc. VAT

This robust fuse block provides perfect protection for your battery system. Designed for plug-and-play use with M8 battery terminal, it’s compact and simple to install directly onto your battery.

Picture for reference only. The fuse supplied will match the selected size.

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FEATURES

Ignition Protection

  • Designed for simple installation onto M8 battery terminals and compatible with M8 cable lugs.
  • Provides strong protection against short circuits, electrical faults, and system damage from connected equipment.
  • Sealed design guards against water and fluid ingress, reducing the risk of short circuits.
  • Built with stainless steel studs and nuts for excellent conductivity and long-lasting durability.
  • High-temperature resistant and wear-resistant for reliable performance over time.

SPECIFICATIONS

Rating 40A - 300A
Max Voltage 58V DC
Weight 0.03kg
Updating…
  • Voltanic extension cable 4mm2
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Most solar kits have a dirty little secret they don't tell you about:
They waste valuable power.
Here's the deal

12V solar panels actually output around 20V

12V leisure batteries charge at just over 12V*

Standard PWM controllers simply drop those extra 8V — throwing away precious power

In cloudy Britain where every watt counts, this is a problem.
The Voltanic Difference

Every Voltanic Kit takes those wasted volts and converts them into extra amps using Advanced MPPT (Maximum Power Point Tracking) Technology.

Harvest 100% of your Solar Energy - No wasted watts

Charge your Batteries 30% Faster

More Power, Fewer Panels - Perfect for tight spaces

Better Value Investment - Get what you pay for

Maximum Power. Zero Waste.
24V 20V 16V 12V 8V 20V Input 12V Output 8V Wasted as Heat
24V 20V 16V 12V 8V 20V Input 12V Output Converting to Extra Amps
Real World Comparison:
100W Panel Performance
Watts = Volts x Amps
Controller Standard PWM Voltanic MPPT
Panel Voltage 20V 20V
Controller Charging Voltage 12V
(PWM reduces voltage)
12V
(MPPT reduces voltage)
Amperage 5.8A
(amps stays same)
8.2A
(MPPT increases amps)
Power Output 12V × 5.8A = 70W 12V × 8.2A = 98W
Power Wastage ~30W
(lost as heat)
~2W
(conversion loss)