MERSEN FUSE 600V 15A CLASS J HS FUSE HSJ15

MERSEN FUSE 600V 15A CLASS J HS FUSE HSJ15

High-speed Class J fuse with 15A rating, suitable for AC up to 600V and DC up to 500V, featuring a ferrule design and tin-plated copper terminals for reliable industrial circuit protection.

SKU: HSJ15MPN: HSJ15
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List Price £42.05 ex VAT
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Sold in packs of 10

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Why Choose the Mersen HSJ15 High-Speed Class J Fuse?

The Mersen HSJ15 is a 15 A high-speed Class J fuse designed to provide reliable branch-circuit and semiconductor protection in industrial electrical systems. Part of the Mersen Amp-Trap® HSJ range, it combines the current-limiting performance of a Class J fuse with the rapid operation required to protect sensitive power-electronic components.

The HSJ15 is particularly suitable for circuits containing variable frequency drives, electronic motor controllers, rectifiers, inverters and other semiconductor-based equipment. Its low let-through energy helps reduce the electrical and thermal stress imposed on vulnerable components during a short-circuit fault.

Rated at 15 A, 600 V AC and 500 V DC, the Mersen HSJ15 offers a compact protection solution for industrial control panels and machinery. Its Class J rejection-style dimensions help prevent the accidental installation of an incompatible fuse class in a suitable fuse holder or fuse block.

Key Advantages

  • Combines branch-circuit and semiconductor protection.
  • 15 A current rating for lower-current industrial circuits.
  • Suitable for systems rated up to 600 V AC or 500 V DC.
  • High-speed operation helps protect sensitive power electronics.
  • Current-limiting performance reduces peak fault current and let-through energy.
  • Class J rejection dimensions help prevent incorrect fuse substitution.

Key Features

  • Mersen Amp-Trap® HSJ series.
  • 15 A rated current.
  • 600 V AC and 500 V DC voltage ratings.
  • High-speed fuse operating characteristic.
  • Class J fuse format.
  • Current-limiting construction.
  • Low I²t performance for semiconductor protection.
  • Suitable for compatible Class J fuse holders and fuse blocks.

Fast Protection for Sensitive Electrical Equipment

Power-semiconductor devices can be damaged by fault energy before a conventional general-purpose fuse has time to operate. The Mersen HSJ15 uses a high-speed fuse element to interrupt severe faults rapidly, helping limit the thermal and electrical energy transferred to connected components.

Its Class J construction also provides branch-circuit protection and compact rejection-style dimensions. Correct selection should take account of the system voltage, continuous load current, temporary inrush current, available fault current and the protection requirements specified by the equipment manufacturer.

Typical Applications

  • Variable frequency drives and small motor-drive systems.
  • Electronic motor controllers and soft starters.
  • Industrial rectifiers, inverters and power converters.
  • Uninterruptible power supply equipment.
  • Semiconductor devices and solid-state equipment.
  • Industrial control panels and OEM machinery.

Technical Specifications

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Current 15 A
Voltage 600 V
Fuse Type UL class
Item number HSJ15
Description Fuse HSJ - Class J - High-Speed 600VAC 500VDC 15A Ferrule Amp-Trap®
EAN/UPC Code 782001329464
Rated voltage AC UL 600 V
Rated voltage DC UL 500 V
Frequency (Hz) 50/60 Hz
Ampere Rating 15 A
AC or DC AC/DC
Fuse Class Class J
Speed/Characteristic High Speed
Mounting Clip
AC Max I.R./Breaking Capacity I1: 200 kA
Connection/Terminal Material Tin-Plated Copper
Connection/Terminal Type Ferrule
Product Diameter 20.7 mm
Product Length 57.2 mm
Sell Pack Quantity 10 EA
Sell Pack Weight 0.4218 kg
Sell Pack Width 60.5 mm
Sell Pack Length 111.3 mm
Sell Pack Height 42.9 mm
Product group Low Voltage UL/CSA Fuses
Body/Insulating Material GMG
Product Weight 0.0404 kg
HS Code 85361050
Country of Manufacture Mexico

Frequently Asked Questions

What is the Mersen HSJ15 used for?

The Mersen HSJ15 provides high-speed overcurrent and short-circuit protection for industrial branch circuits, drives, converters and sensitive semiconductor equipment.

What is the current rating of the HSJ15?

The Mersen HSJ15 has a nominal current rating of 15 A.

What voltage is the Mersen HSJ15 rated for?

The fuse is rated for applications operating at up to 600 V AC or 500 V DC.

Is the HSJ15 a time-delay fuse?

No. The HSJ15 is a high-speed fuse designed to limit fault energy and protect sensitive semiconductor devices more rapidly than a conventional time-delay fuse.

Which fuse holder is required for the HSJ15?

The HSJ15 should be installed in a compatible Class J fuse holder or fuse block with voltage, current and short-circuit ratings suitable for the application.

Trusted High-Speed Circuit Protection

Mersen Amp-Trap® high-speed fuses are used by panel builders, equipment manufacturers and industrial engineers to protect power semiconductors and critical electrical systems against damaging fault currents.