Mersen HSJ450 Fuse HSJ - Class J - High-Speed 600VAC 500VDC 450A Blade Amp-Trap®
Alternate Item Number: HSJ450
UPC: 782001329730
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Contact for Pricing
Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.
Overview
- Class J High-Speed Fuse for branch circuit and semiconductor protection
- Rated 450A, 600VAC, 500VDC with 200kA interrupting rating at 600VAC
- Low I²t for protecting power semiconductors (Diodes, SCRs, GTOs, SSRs)
- Optimized for solid-state motor controller starting characteristics
- UL listed to standard 248-8 (File E2137) and CSA certified
Specifications
AC Voltage Rating | 600 V |
Amperage Rating | 450 A |
Application | Branch circuits Control panels Electronic motor controllers Phase controllers Drives Soft-starters Solid state relays |
Body Material | GMG |
Brand Name | Mersen |
Class | Class J |
Connection | Blade |
Connection Material | Silver-Plated Copper |
Connection Type | Blade |
Current Rating | 450 A |
DC Voltage Rating | 500 V |
Fuse Class | J |
Interrupt Rating | 200 kA |
Mounting | Clip |
Series | Amp-Trap® |
Series | HSJ |
Size | 8 x 2.5 in |
Size | 203.2 x 63.5 mm |
Special Features | Optimized over-load capability for withstanding elevated levels of current during electronic motor controller starts Low I2t (low thermal energy) Excellent cycling ability for frequent starts/stops without nuisance opening |
Standard | UL listed to standard 248-8 File E2137 CSA certified to standard C22.2 no. 248.8 DC listed to UL 248 |
Sub Brand | Amp-Trap® |
Type | Class J |
Voltage Rating | 600 VAC |
Package Dimensions (L x W x H) | 8 in x 2.5 in x 2.5 in |
Package Dimensions (L x W x H) | 203.2 mm x 63.5 mm x 63.5 mm |
Package Weight (Imperial) | 3.020 lb |
Package Weight (Metric) | 1.370 kg |
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POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.
Frequently Asked Questions
What is the interrupting rating of the Mersen HSJ450 fuse?
The Mersen HSJ450 fuse has an interrupting rating of 200 kA at 600VAC and 100 kA at 500VDC (L/R = 10mS or less).
What types of semiconductors can the HSJ450 fuse protect?
The HSJ450 fuse is ideal for protecting power semiconductors such as Diodes, SCRs, GTOs, and Solid State Relays (SSRs) due to its low I²t characteristic.
What is the pre-arcing I²t value for the HSJ450 fuse?
The pre-arcing I²t value for the Mersen HSJ450 fuse at its rated current is 26500 A²s.
What is the clearing I²t value for the HSJ450 fuse?
The clearing I²t value for the Mersen HSJ450 fuse at its rated current is 155000 A²s.
What are the voltage ratings for the Mersen HSJ450 fuse?
The Mersen HSJ450 fuse is rated for 600 Volts AC and 500 Volts DC.
What applications are suitable for the Mersen HSJ450 fuse?
The HSJ450 fuse is suitable for branch circuits, control panels, electronic motor controllers, phase controllers, drives, soft-starters, and solid-state relays.
What is the power dissipation of the HSJ450 fuse?
The power dissipation for the Mersen HSJ450 fuse is 70 W.
Frequently Asked Questions about Mersen
What industries and applications are Mersen products used for?
Mersen products are used across diverse industrial sectors including solar power, electric vehicles, buildings/construction, industrial automation, power distribution, HVAC, elevators, telecommunications, and specialty manufacturing. Key application areas include circuit protection, surge protection, battery module protection, electrical safety systems, and power management for residential, commercial, and utility-scale installations.
What are the main product lines offered by Mersen?
Mersen offers five primary electrical power product lines: IEC and UL/CSA Fuses and Fusegear, Surge Protection, Low Voltage Disconnect Switches, Power Distribution Blocks, and Engineered Solutions. Their comprehensive range includes specialized components like high-speed fuses, modular fuse holders, surge arresters, and custom-engineered electrical protection systems for industrial and power management applications.
What are the key features of Mersen products?
Mersen products feature advanced electrical protection and power management solutions with key characteristics including finger-safe design, compact modularity, and high-performance safety features. Their product lines span electrical power components like fuses, surge protection, power distribution blocks, and specialized solutions for industrial, solar, and building applications. Critical features include UL/CSA approvals, high short-circuit current ratings, and innovative technologies like the Fuse Control™ program that minimize electrical risks and optimize system performance.
What environmental ratings do Mersen products have?
Mersen products meet rigorous environmental ratings across multiple standards, including UL 508A Type 1, 2, 3, 4, 4X, 12, and 13, CSA Type 1, 2, 3, 4, 4X, 12, and 13, and NEMA Type 1, 2, 3, 4, 4X, 12, and 13. They feature IEC 60529 IP66 protection, with enhanced UV inhibitors for outdoor weathering and operating temperatures ranging from -40°C to 130°C (-40°F to 266°F). These ratings ensure superior protection in wet, corrosive, and challenging industrial environments.
What accessories are available for Mersen products?
Mersen offers multiple accessories for their fuse blocks and systems, including safety pullers (DFC3M and DFC3LP), DIN-rail adapters (DRM), bus bars, auxiliary contacts, and specialized mounting hardware. Key accessories include the DFC3M safety puller for 1-1/2" x 13/32" midget or Class CC fuses, the DRM adapter for mounting 303 series fuse blocks on DIN-rail, and UltraSafe fuse module accessories like bus bars and auxiliary contacts that enable module interconnection and monitoring.
How are Mersen products typically installed?
Mersen products are typically installed in electrical distribution systems, control panels, and industrial automation environments using multiple mounting options. These include service entrance panel mounting, distribution panel installation, control panel DIN rail mounting, and custom engineered solutions like Fused Coordination Panelboards. Installation depends on the specific product type, such as fuses, surge protective devices, or switches, and is designed to provide electrical protection and circuit safety in various industrial and commercial applications.
What certifications and standards do Mersen products comply with?
Mersen products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Our products meet rigorous safety and performance standards for industrial applications across North America, China, Russia, and other global markets, ensuring compliance and reliability in electrical power and advanced materials solutions.
What technical support does Mersen offer?
Mersen provides comprehensive technical support through multiple channels, including technical experts located in your time zone who can assist with product selection, application guidance, and troubleshooting. Their Fuse Control™ program offers a free Fuse Inventory Audit & Analysis, and customers can access technical resources through their sales representatives and online platform ep.mersen.com.