Projecta IFB-100 Fuse Box with 100A ANL Fuse

Projecta IFB-100 Heavy-Duty Fuse Box with 100A ANL Fuse

A heavy-duty ANL fuse box from Projecta, the IFB-100 provides overcurrent protection for inverter installations and high-current DC circuits, designed for placement in the positive DC line close to the battery to protect the cable from fire risk during a short circuit.

Product overview

Projecta IFB-100 Fuse Box delivers overcurrent protection for inverter installations and high-current DC circuits, helping prevent cable fires and equipment damage. The ANL fuse holder with included 100A fuse protects the positive DC line between battery and inverter, interrupting current flow during a short circuit before the cable can overheat.

The 100A rating suits inverters up to approximately 1200W continuous power, covering popular inverter sizes such as 500W, 1000W, and 1100W models. Larger inverters of 1600W and above require higher-rated fuses, available separately. The ANL fuse format is an industry standard for automotive and marine high-current applications, with a transparent cover allowing the fuse to be visually inspected without disassembly, and brass terminals providing a reliable, corrosion-resistant connection.

Recommended installation is close to the battery, within 450mm maximum, protecting the greatest length of cable from short circuit damage.

Features and benefits

Heavy-duty ANL fuse holder with 100A fuse: Provides immediate overcurrent protection using the industry-standard ANL format, suited to inverters up to approximately 1200W continuous power.

Fire prevention safety component: Interrupts current during a short circuit, helping prevent the cable from overheating and reducing fire risk.

Installs in the positive DC line close to the battery: Designed for placement within 450mm of the battery terminal, protecting the maximum length of cable.

Transparent cover with visual inspection: Allows the fuse condition to be checked without disassembly, simplifying troubleshooting.

Brass terminals: Provides a reliable, corrosion-resistant connection suited to vibration and moisture exposure in automotive and marine environments.

Suitable for inverters up to 1200W: Provides appropriate protection for common inverter sizes without nuisance tripping during normal operation.

Standard ANL fuse format: Ensures wide availability of replacement fuses at automotive and marine suppliers.

Robust automotive and marine construction: Built to withstand vibration, temperature extremes, moisture, and corrosion for permanent vehicle, caravan, or boat installation.

Technical specs

Compatible with

The IFB-100 is compatible with DC electrical systems requiring high current circuit protection, including inverter installations up to approximately 1200W, DC-DC charger protection, and other high-current accessory circuits. Suited to caravans, motorhomes, 4WD vehicles, and boats. A replacement ANL fuse is available separately as the Projecta IF-100.

Frequently asked questions

Where should the IFB-100 be installed in an inverter setup?
Install in the positive DC line between the battery positive terminal and the inverter positive input, as close to the battery as practical, within 450mm maximum. This protects the greatest length of cable from short circuit damage. It should not be installed in the negative line.

How do I know if 100A is the right fuse rating for my inverter?
The 100A rating suits inverters up to approximately 1200W continuous power. Larger inverters, such as 1600W and above, require a higher-rated fuse. Confirm the correct rating for your specific inverter with us before installation.

Can the IFB-100 be used instead of a circuit breaker?
An ANL fuse provides equivalent overcurrent protection to a circuit breaker for inverter applications. A fuse is typically lower cost and simpler to install, while a circuit breaker offers resettable operation without a replacement part. The choice comes down to preference and application.

What happens when the fuse blows and how do I replace it?
A blown fuse interrupts power to the inverter. To replace it, disconnect the battery negative terminal, remove the fuse box cover, replace the blown fuse with a genuine 100A ANL fuse such as the Projecta IF-100, then reassemble and reconnect the battery. Investigate the cause of the fault before restoring power.

Do I need to add a fuse if my inverter didn't come with one?
Yes. Proper fusing is an important safety component that helps protect the cable from overheating during a short circuit. Many inverters are sold without external fusing, expecting the installer to provide appropriate protection between the battery and the inverter.