AMI / MIDI Fuse - 60 Amp - AMI / MIDI Fuse - 60 Amp

AMI / MIDI Fuse - 60 Amp - Dimensioned Drawing

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Blue Sea Systems

5253-BSS

AMI / MIDI Fuse - 60 A

This Blue Sea AMI / MIDI 60-amp fuse is designed for essential protection of high-power marine electrical circuits. It provides rapid interruption in case of overcurrent, safeguarding critical equipment and preventing onboard fire hazards. It is supplied as a single unit, without specific accessories.

Price excl. import taxesBenefit from the professional rate

£5.88 GBP

£5.88 GBP ~~£6.67 GBP~~

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Prices exclude import taxes. DAP delivery: import taxes are paid on delivery.

Available in stock

Free pickup point from €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

Request a quote

Installers near you

thanks to our network of approved installers

Find an installer

Support service

Opt for additional installation assistance

Technical specifications

Fuse type	AMI / MIDI
Nominal voltage	32 V
Amperage	60.0
Number of fuses	1.0
Terminal thread size (mm)	M5
Fuse included	Oui
Ignition protection	Oui
ABYC compliance	Oui
Contact material	Tinned copper
Housing material	Clear plastic
Dimensions (W x H x D)	41 x 8 x 12 mm
Operating temperature range	-40°F to 257°F
Current type	DC
Fuse Element Material	Tinned copper
Humidity Operating Range Percent	0-95% (no condensation)
Net product weight	8
Product height	12
Product length	41
Product width	8
Product type	Fuse
Storage temperature range	-40°F to 257°F
UV resistance	Yes
Voltage type	DC

Detailed description

Designed for essential protection of marine electrical circuits, the Blue Sea Systems AMI / MIDI 60-amp fuse (part number 5253-BSS) provides a reliable solution against overcurrent. This component is essential for safeguarding high-power equipment such as inverters, battery chargers, or winch systems, preventing costly damage and fire risks on board.

Integration and Functionality

The AMI / MIDI format is a standard in marine installations for applications requiring high current interruption capacity. Unlike lower-rated ATO/ATC fuses or resettable circuit breakers, the Blue Sea AMI / MIDI fuse is specifically sized to handle high nominal currents and ensure rapid, definitive interruption in critical overload conditions. Its design ensures easy integration into compatible fuse holders, commonly used for protecting main power lines or high-power equipment.

Comparison and Positioning

Blue Sea Systems is recognized for the quality of its marine electrical components. This 60-amp AMI / MIDI fuse serves as a standard replacement or installation component for systems requiring reliable protection compliant with marine standards. It fits within Blue Sea’s protection solutions range, complementing products like circuit breakers or bus bars by providing targeted, effective protection for specific loads. For applications requiring different ratings, Blue Sea’s AMI / MIDI range also includes variants from 30 A to 500 A, allowing precise adaptation to each circuit’s needs.

Documentation

Type	Nom
	EN - Full Scale Fuse Comparison (scaled 1 - 1) - AMI - MIDI Fuse - 60 Amp

Expert opinion

Pol CONIN

Digital Manager

« Essential protection for high-current marine circuits »

The Blue Sea AMI/MIDI 60-amp fuse is a critical safety component for marine electrical installations. Its purpose is to reliably protect high-current circuits, often associated with critical equipment such as windlasses, bow thrusters, alternators, or power converters. Choosing a fuse from a recognized brand like Blue Sea ensures the component will trip precisely at its rated amperage, preventing potential damage to connected devices or, more seriously, fire risks due to cable overheating.

Installing this type of fuse is generally straightforward, requiring a compatible AMI/MIDI fuse holder. It is essential to ensure the fuse holder is suitable for the marine environment and correctly sized for the fuse rating. A common mistake is using a higher-rated fuse to avoid nuisance tripping, which compromises circuit protection. Conversely, an undersized fuse will trip unnecessarily. This fuse is not resettable; once it has performed its function, it must be replaced. It is therefore advisable to carry spare fuses on board.

This AMI/MIDI fuse model differs from circuit breakers by its instantaneous and definitive cutoff in case of major overload, providing uncompromising protection. It is less suitable for circuits where frequent resets are expected or desired, such as certain auxiliary equipment. For these, resettable circuit breakers may be more appropriate. The AMI/MIDI 60-amp fuse is therefore the preferred choice for primary protection and circuits where long-term reliability and safety are absolute priorities.

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AMI / MIDI Fuse - 60 A

£5.88 GBP

£5.88 GBP ~~£6.67 GBP~~

Frequently Asked Questions

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What is an AMI/MIDI fuse and what is it used for?

An AMI/MIDI fuse is a type of fuse designed to protect marine electrical circuits from overcurrents. It is specifically sized to handle high nominal currents and ensure a rapid and definitive interruption in the event of a critical overload. Its primary role is to safeguard high-power equipment on board, such as inverters, battery chargers, or winch systems, to prevent costly damage and fire risks.

What is the nominal current rating of this Blue Sea fuse?

The nominal rating of this Blue Sea fuse is 60 amperes. This means it is designed to protect circuits where the current must not exceed this value, breaking the circuit if the current exceeds it.

What are the advantages of an AMI/MIDI fuse compared to other types of marine fuses?

The AMI/MIDI fuse offers several key advantages, particularly for high-power marine applications:

High interrupt rating: It is specifically designed to handle large nominal currents, unlike lower-rated ATO/ATC fuses.Rapid and definitive protection: In the event of a critical overload, it provides fast and irreversible circuit interruption, effectively protecting equipment and preventing fire risks.Standardization: The AMI/MIDI format is a recognized standard in marine installations for applications requiring robust protection.

Is this fuse reusable after it has blown?

No, an AMI/MIDI fuse, like any fuse, is a single-use protection device. Once it has blown to interrupt a circuit in the event of an overcurrent, it must be replaced with a new fuse of the same rating to restore the protection function. It is not resettable.

Which types of marine equipment is this 60-amp fuse compatible with?

This 60-amp fuse is designed to protect high-power marine equipment. It is ideal for securing devices such as voltage converters, battery chargers, winch systems, bow thrusters, or any other application requiring overcurrent protection on a main power line or a high-consumption dedicated circuit.

Does this fuse require a specific fuse holder?

Yes, this 60-amp AMI/MIDI fuse requires a fuse holder compatible with the AMI/MIDI format. Its design ensures easy integration only in fuse holders specifically designed for this type of fuse, which are commonly used for protecting main power lines or high-power equipment in marine installations.

How to install this AMI/MIDI fuse in a marine electrical circuit?

To install this fuse, it must be placed in a compatible AMI/MIDI fuse holder. Ensure the circuit is powered off before handling. The fuse is inserted into the designated slot of the fuse holder, which is then connected in series on the power line to be protected. It is critical to respect the mounting direction indicated by the fuse holder, if applicable, and to ensure all connections are clean and securely tightened to avoid resistance and overheating.

Is it important to respect the 60 ampere rating when replacing a fuse?

Yes, it is absolutely critical to use a 60-amp fuse when replacing this fuse. Using a fuse with a lower rating may cause nuisance tripping, while a fuse with a higher rating will not adequately protect the circuit and connected equipment, risking costly damage or fire in the event of an overload. The fuse rating must always match the circuit protection requirements and connected devices.