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MERSEN HSJ45 Very-Fast-Acting Cylindrical Fuse - Very-Fast-Acting Cylindrical Fuses
MERSENVery-Fast-Acting Cylindrical Fuses

MERSEN HSJ45 Very-Fast-Acting Cylindrical Fuse

The MERSEN HSJ Series is a very-fast-acting cylindrical fuse, Class J, rated 45 A at 600 V AC and 500 V DC (MPN HSJ45). This industrial fuse provides overcurrent protection with a cylindrical body design.

SKU 3G-OTH-24856

Also listed as: HSJ 45 · HSJ-45

Brand
MERSEN
Item
HSJ45 Very-Fast-Acting Cylindrical Fuse
Part Number
HSJ45
Category
Very-Fast-Acting Cylindrical Fuses
Available to Order
Also known as:HSJ45MERSEN
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

MERSEN
Manufacturer Part Number
HSJ45
Series
HSJ
Type
Class J, Cylindrical Body, Very-Fast-Acting, 45 A
AC
600 V
DC
500 V

Technical Documents

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MERSEN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The MERSEN HSJ Series is a very-fast-acting cylindrical fuse, Class J, rated 45 A at 600 V AC and 500 V DC (MPN HSJ45). This industrial fuse provides overcurrent protection with a cylindrical body design.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the MERSEN HSJ45 fuse used for?

The MERSEN HSJ45 is a very-fast-acting Class J cylindrical fuse rated 45 A at 600 V AC and 500 V DC. It provides overcurrent protection for industrial equipment such as motor control centers, panelboards, and branch circuits where fast response to short circuits is critical.

What are the specifications of the MERSEN HSJ45 fuse?

The MERSEN HSJ45 is a Class J, cylindrical-body, very-fast-acting fuse rated 45 A, 600 V AC, and 500 V DC. It is part of the HSJ series and carries the manufacturer part number HSJ45. These ratings ensure reliable overcurrent protection in industrial power systems.

Where to buy the MERSEN HSJ45 fuse worldwide?

3G Electric supplies the MERSEN HSJ45 fuse to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this Class J, 45 A, 600 V AC / 500 V DC fuse.

How to select the correct MERSEN HSJ45 fuse for an application?

To select the MERSEN HSJ45, verify your circuit voltage does not exceed 600 V AC or 500 V DC and that the continuous load current is below 45 A. Ensure the fuse holder or disconnect is rated for Class J fuses. Always consult the manufacturer's time-current curve for coordination with upstream devices.

Used in

Common applications for MERSEN
Power electronics protection — MERSEN A70Q series semiconductor fuses in variable frequency drives for motor control.
Surge protection for industrial panels — MERSEN STP480D07 SPDs in three-phase 480V AC distribution boards.
Control circuit overcurrent protection — MERSEN ATM series midget fuses in PLC and instrumentation cabinets.
Power distribution in manufacturing — MERSEN FSPDB4A finger-safe blocks in motor control centers for wire management.
DC bus protection in renewable energy — MERSEN A30QS series fuses in solar inverter DC inputs.
High-voltage semiconductor protection — MERSEN A70Q series fuses in welding equipment power supplies.
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MERSEN Products

3G Electric supplies MERSEN very-fast-acting cylindrical fuses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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