Mersen H203764 MIBOX5ST assortment box containing multiple ratings of time-delay 5 x 20 mm glass miniature fuses for 250 V AC electrical and industrial circuit protection.
SKU:H203764Alt SKU:MIBOX5STMPN:H203764
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Why Choose the Mersen H203764 MIBOX5ST Miniature Fuse Assortment?
The Mersen H203764 MIBOX5ST is a practical assortment of 5 × 20 mm time-delay miniature fuses designed for electrical maintenance, equipment servicing and industrial circuit protection. Containing a selection of current ratings from the established Mersen 5ST IEC miniature fuse series, it provides engineers and technicians with convenient access to commonly required slow-blow fuse ratings.
The time-delay operating characteristic allows the fuses to withstand brief, high start-up currents without unnecessary operation. This makes the assortment particularly useful for protecting equipment containing motors, transformers, power supplies and other components that naturally draw an inrush current when energised.
Designed for circuits rated up to 250 V AC, the H203764 assortment contains 5 × 20 mm glass cartridge fuses covering current ratings from approximately 0.1 A to 6.3 A. The organised storage box is suitable for maintenance workshops, panel builders, laboratories, OEM production facilities and industrial service departments.
Key Advantages
Convenient assortment of commonly used time-delay miniature fuses.
Multiple current ratings supplied in one organised storage box.
250 V AC voltage rating for industrial and electrical equipment.
Ideal for maintenance, repair, prototyping and OEM production.
Key Features
Mersen MIBOX5ST fuse assortment.
Part of the Mersen 5ST IEC miniature fuse series.
Time-delay or slow-blow operating characteristic.
Current range from approximately 0.1 A to 6.3 A.
250 V AC rated voltage.
Standard 5 × 20 mm cartridge dimensions.
Glass cartridge body construction.
Supplied in a compartmented assortment box.
Convenient Protection for Circuits with Inrush Current
Time-delay miniature fuses are designed to withstand temporary current surges associated with normal equipment start-up while still disconnecting the circuit during a sustained overload or short circuit. This helps prevent nuisance fuse operation in equipment containing motors, transformers and capacitive loads.
By providing several commonly required ratings in one organised box, the Mersen H203764 helps maintenance engineers select an appropriate replacement fuse quickly. This can reduce equipment downtime and simplify stock management in workshops, service vehicles and production environments.
Typical Applications
Electrical maintenance workshops.
Industrial control panels.
Motor and transformer control circuits.
Power supplies and electronic equipment.
Automation and process control systems.
OEM production, prototyping and equipment servicing.
Technical Specifications
Manufacturer
Mersen
Series
5ST IEC Miniature Fuses
Model
H203764
Manufacturer reference
MIBOX5ST
Product type
Miniature fuse assortment box
Fuse type
Time-delay cartridge fuse
Fuse dimensions
5 × 20 mm
Rated voltage
250 V AC
Current range
Approximately 0.1 A to 6.3 A
Operating characteristic
Time delay
Body material
Glass
Application
Electrical distribution and industrial equipment protection
Storage format
Compartmented assortment box
HS Code
85361010
Frequently Asked Questions
What is included in the Mersen H203764?
The H203764 is an assortment box containing multiple current ratings of Mersen 5ST time-delay 5 × 20 mm miniature fuses.
What current ratings does the assortment cover?
The assortment covers multiple ratings across an approximate current range of 0.1 A to 6.3 A.
What voltage are the fuses rated for?
The fuses in the MIBOX5ST assortment are rated for circuits up to 250 V AC.
Are the fuses quick acting or time delay?
They are time-delay fuses designed to withstand temporary start-up currents while protecting against sustained overloads and short circuits.
Who is the H203764 assortment designed for?
It is suitable for maintenance engineers, panel builders, machine manufacturers, repair technicians, laboratories and OEM production teams.
Trusted for Electrical Maintenance and Circuit Protection
Mersen miniature fuses are used by maintenance engineers, equipment manufacturers and panel builders worldwide for dependable protection of electrical distribution circuits and industrial equipment.
Manufacturer
Mersen
Series
5ST IEC Miniature Fuses
Model
H203764
Manufacturer reference
MIBOX5ST
Product type
Miniature fuse assortment box
Fuse type
Time-delay cartridge fuse
Fuse dimensions
5 × 20 mm
Rated voltage
250 V AC
Current range
Approximately 0.1 A to 6.3 A
Operating characteristic
Time delay
Body material
Glass
Application
Electrical distribution and industrial equipment protection
Storage format
Compartmented assortment box
HS Code
85361010
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
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We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...