Alvolta 250A Battery Terminal Fuse (MRBF)

Alvolta 250A Battery Terminal Fuse (MRBF)

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250A MRBF-style battery terminal fuse for systems up to 58V DC

$ 14.95 - Inc GST 14.95 in stock AUD $ 14.95 Tax Included

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ALVOLTA

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Category: Circuit Protection, Fuse & Fuse Holder, Fuse

SKU: ALV-BTF250

Alvolta 250A Battery Terminal Fuse (MRBF)

Fuse features

250A battery terminal (MRBF-style) fuse
Rated up to 58V DC
Interrupting capacity 10,000A at 14V, 5,000A at 32V, 2,000A at 58V DC
Compliant with SAE J1171

Design features

Translucent housing with fuse inspection window
Compact 27.8 x 23 x 16.3 mm body
Fits the Alvolta ALV-BTFH1 single and ALV-BTFH2 dual battery terminal fuse holders

Where to use it

The Alvolta 250A Battery Terminal Fuse mounts right on the battery post in an Alvolta battery terminal fuse holder, so the cable is protected from the battery onwards with almost no unfused length. It suits main feeds and high-current circuits such as inverters, DC-DC chargers and distribution boards in caravans, camper trailers, 4WDs, boats and off-grid systems.

Choose the rating to protect the cable: at or below its current capacity and above the normal load. The fuse sits in the ALV-BTFH1 or ALV-BTFH2 holder on an M8 or M10 battery terminal, the translucent housing lets you check it at a glance, and it is backed by a 1-year warranty.

Fuse guides

Alvolta Fuse Guide

Alvolta Fuse Holder Guide

Dimensions

Length	27.8 mm
Width	23 mm
Height	16.3 mm

Safety features

Interrupting capacity 10,000A at 14V, 5,000A at 32V, 2,000A at 58V DC
Fuse inspection window
Compliant with SAE J1171

Warranty

1-year warranty

Applications

Marine

RV's

Caravans

Off-Grid Systems

Tiny Houses

Cabins

About Alvolta

Australian-owned and operated, and driven by a passion for excellence, Alvolta offers unwavering performance and durability even in harsh Australian conditions. Alvolta specialises in precision-engineered DC components, designed to enhance off-grid adventures. Their commitment to delivering superior power performance with uncompromising quality is evident in their lineup of solar panels, solar charge controllers, circuit protection devices, mounting solutions, tools, and more. Supply yourself with all the arsenal you need to extend your power supply and adventure for longer with Alvolta.

Datasheet_ALV-BTF250_V1_compressed.pdf

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A battery terminal fuse (also known as a fuse link or terminal-mounted fuse) is a high-current protection device that mounts directly onto a battery post. It provides the first line of protection between the battery and your vehicle or auxiliary electrical system.

Battery terminal fuses protect against short circuits and overcurrent faults that could otherwise cause wiring damage or fire. Because they’re mounted at the source (directly on the battery terminal) they ensure your system is protected from the very start of the power line.

They’re commonly used in 4WDs, caravans, campers, and marine systems where compact and direct protection is required. They’re perfect for protecting DC-DC chargers, inverters, lithium batteries, and solar charge controllers.

Battery terminal fuses mount directly onto the positive battery post using a compatible fuse holder. Connect your power cable to the other side of the holder, ensuring a tight, corrosion-free connection. Always disconnect the battery before installation for safety.

Choose a fuse that matches the maximum continuous current of your connected load, ensuring it’s within the limits of both the cabling and the device being protected. For example, a 100A inverter circuit might use a 125A or 150A fuse. Refer to your equipment manufacturer’s recommendations for accurate sizing.

Product Specifications

Model	ALV-BTF250
Amperage	250A
Voltage	58V DC
Interrupting Capacity	10,000A at 14V, 5,000A at 32V, 2,000A at 58V DC
Housing Material	Translucent plastic
Terminal	Metal
Compliance	SAE J1171
Operating Time at 100% Rating	More than 100 hrs
Operating Time at 135% Rating	900 s max.
Operating Time at 200% Rating	60 s max.
Operating Time at 350% Rating	0.1 s min., 1 s max.
Operating Time at 600% Rating	Less than 0.2 s
Dimensions	27.8 x 23 x 16.3 mm
Warranty	1 Year