Class T Fuse Block with Insulating Cover - 225 to 400A - Class T Fuse Block with Insulating Cover - 225 to 400A

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Blue Sea Systems

5502100-BSS

Class T fuse block with insulating cover - 225 to 400 A

Name: Class T fuse block with insulating cover - 225 to 400 A
Brand: Blue Sea Systems
SKU: 5502100-BSS
Price: 93.6 EUR
Availability: InStock

Designed for quick protection of inverters and large battery banks, the BLUE SEA Class T fuse block 5502100-BSS is compatible with Class T fuses from 225 to 400 A (the block supports a maximum current of 320A DC). It features an insulating cover and 5/16"-18 stainless steel studs for secure connections. This model complements Blue Sea’s Class T range, providing a robust solution for high-power applications.

Includes: A Class T fuse block with insulating cover and stainless steel serrated flange nuts. Fuses sold separately.

Retail priceBenefit from the professional rate

93,60€

93,60€ ~~115,20€~~

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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	T Class
Nominal voltage	160
Amperage	320.0
Compatible fuse rating range	225-400
Number of fuses	1.0
Mounting type	Surface mount
Stud size (mm)	8
Terminal thread size (mm)	8
Cover included	Oui
Ignition protection	Oui
Flame retardant	Oui
ABYC compliance	Oui
Contact material	Tinned copper
Housing material	UL 94-V0 plastic
Recommended terminal torque (Nm)	12.9
Maximum cable cross-section per stud	120.0
Dimensions (W x H x D)	177.8 x 58.4 x 50.8 mm
Certifications	CE, ISO 8846, SAE J1171
Application Circuit Type	Quick protection
Base Material Flammability Standard	UL 94-V0
Continuous Amperage Engine Space	300
Flange Nut Material	Stainless steel
Height Above Base To Studs Mm	29.7
Height	58.4
Length (mm)	7
Mounting hole spacing	158.8
Product type	Fuse block
Terminal Stud Material	Stainless steel
Width	50.8

Detailed description

Designed for fast protection of high-current electrical circuits, the BLUE SEA 5502100-BSS Class T fuse block is intended for inverters and large battery banks. It supports a maximum voltage of 160V DC and is compatible with Class T fuses from 225 to 400 A (sold separately). This block is certified to meet the ignition protection requirements of ISO 8846 and SAE J1171.

Design and Technical Specifications

The BLUE SEA 5502100-BSS design features four 5/16"-18 stainless steel studs, accepting M8 eyelet terminals, and an insulating cover compliant with ABYC/USCG standards. The cover includes breakout points for cable access in all directions. The UL 94-V0 base ensures resistance to high temperatures. The studs are designed for secure fuse attachment even under high heat, and the knurled stainless steel flange nuts provide reliable connections with a maximum tightening torque of 107 in-lb [12.9 N-m]. Mounting is via holes suitable for 1/4" or M6 fittings.

Position in the BLUE SEA Range

Its dimensions are 177.8 mm long, 50.8 mm wide, and 58.4 mm high, with mounting holes spaced 158.8 mm apart. The fuse mounting bus material is tinned copper. Unlike the 5007100 model in the same range, which covers 110-200A with 1/4"-20 studs and a torque of 72 in-lb, the BLUE SEA 5502100-BSS is specifically sized for applications requiring higher current capacity, providing a robust solution for large-scale marine electrical systems.

Documentation

Type	Nom
	EN - Plan coté - Class T Fuse Block 225-400A
	EN - Fiche produit - Class T Fuse Blocks 225-400A
	EN - Certificat EU Type Examination ISO 8846 - Class T Fuse Block 225-400A
	EN/FR/DE - Déclaration de conformité - Class T Fuse Blocks 5007100/5502100

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Class T fuse block with insulating cover - 225 to 400 A

93,60€

93,60€ ~~115,20€~~

Frequently Asked Questions

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What is the purpose of the Class T fuse block BLUE SEA 5502100-BSS?

The Blue Sea Systems 5502100-BSS Class T fuse block is designed for fast protection of high-current electrical circuits. It is specifically intended for inverters and large battery banks in marine applications.

What is the maximum voltage this fuse block can handle?

This fuse block can support a maximum voltage of 160V DC.

What is the maximum amperage that the 5502100-BSS fuse block can handle?

The 5502100-BSS fuse block can handle a maximum amperage of 320A in operation. If the block is installed inside an engine space and for continuous use, the recommended maximum amperage is 300A.

Which types of fuses are compatible with this fuse block?

This block is compatible with Class T fuses rated between 225A and 400A. Note that fuses are sold separately.

Are the fuses included with the BLUE SEA 5502100-BSS fuse block?

No, Class T fuses compatible with this block are sold separately and are not included with the product.

What are the exact dimensions of the 5502100-BSS fuse block?

The fuse block dimensions are as follows:

Length: 177.8 mm (7.00 in)Width: 50.8 mm (2.00 in)Height: 58.4 mm (2.3 in)

Is the fuse block flame-resistant?

Yes, this fuse block is certified compliant with the flame-resistant requirements of ISO 8846 and SAE J1171. It also complies with Directive 2013/53/EU for recreational craft.

What materials make up the fuse mounting bus?

The fuse block mounting bus is made of tinned copper, ensuring excellent conductivity and corrosion resistance.

What is the specific feature of the insulating cover for this fuse block?

The insulating cover meets ABYC/USCG insulation requirements. It is also equipped with practical breakout points that allow cable access in all directions, making installation and wiring easier.

What is the function of the UL 94-V0 material used for the base?

The fuse block base is made from UL 94-V0 rated material. This material provides excellent resistance to high temperatures, enhancing the safety and durability of the product in demanding environments.

What is the difference between model 5502100-BSS and model 5007100 in the same BLUE SEA range?

Model 5502100-BSS is designed for higher amperages, accepting Class T fuses from 225A to 400A, with 5/16"-18 studs and a maximum torque of 107 in-lb [12.9 N-m]. In contrast, model 5007100 covers amperages from 110A to 200A, uses 1/4"-20 studs, and a torque of 72 in-lb.

How is the fuse block installed?

The fuse block is mounted using holes sized for 1/4" or M6 fasteners. The mounting hole spacing is 158.8 mm (6.25 in).

What is the maximum recommended tightening torque for stud connections?

The maximum recommended torque for stainless steel serrated flange nuts is 107 in-lb [12.9 N-m]. Use a 1/2" socket for tightening.

What are the recommended cable sizes for continuous use in an engine space with a 400A fuse?

For continuous use (over 15 minutes) inside an engine space with a 400A fuse and 105°C wire, it is recommended to use 2 cables of 4/0 AWG (2 x 120mm²).

Which eyelet terminal sizes are compatible with the studs on this block?

The four 5/16"-18 stainless steel studs on this fuse block are designed to accept M8 eyelet terminals.

Is this fuse block suitable for 12V or 24V systems?

Yes, this fuse block is fully suitable for 12V and 24V systems, as it is designed to withstand a maximum DC voltage of 160V, which comfortably covers these common applications.