Mersen A100P250-4 - High Speed Fuse Amp-Trap® A100P 1000VAC 750VDC 250A Bolted Blade
Mersen

A100P250-4

Alternate Item Number: A100P250-4

UPC: 782001948344


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Overview

The Mersen A100P250-4 Amp-Trap® Form 101 high-speed fuse delivers precise protection for high-voltage applications. Rated 1000VAC and 750VDC, this 250A bolted blade fuse is engineered for critical applications including UPS systems, AC/DC drives, and reduced voltage motor starters. Its low I²t characteristic is specifically designed to minimize damage to protected components during short circuit events. Furthermore, the controlled arc voltage feature reduces stress on circuit components during the fuse clearing process. The A100P250-4 boasts an impressive 100kA interrupting rating (IR), ensuring it can safely interrupt fault currents. Its 25ms limiting response (LR) time contributes to superior reliability in demanding industrial environments. For enhanced operational visibility, optional trigger indicators are available to provide visual confirmation of fuse operation. Designed with North American applications in mind, this fuse meets UL recognition standards (File E60314) and is manufactured in the United States. It is an ideal solution for semiconductor protection where fast-acting, current-limiting performance is absolutely critical.
  • 1000VAC/750VDC voltage rating for high-voltage applications
  • 250A current rating with 100kA interrupting rating (IR)
  • Low I²t minimizes damage to protected components on short circuits
  • Controlled arc voltage reduces stress during fuse clearing
  • Optional trigger indicator for visual fault confirmation

Specifications

AC Voltage Rating
1000 V
Amperage Rating
250 A
Application
Protection of UPS systems AC/DC drives, reduced voltage motor starters and other 1000V or less semiconductor devices
Brand Name
Mersen
Case
GMG
Case Material
GMG
Connection
Blade
Connection Type
Bolted Blade
Current Rating
250A
Mounting
Bolted
Mounting
Bolt
Series
A100P Amp-Trap® Form 101
Size
5.72 x 2 in
Size
145.288 x 50.8 mm
Size
5.72 x 2;145.288 x 50.8 in;mm
Special Features
Low I2t minimizes damage to protected components on short circuit Controlled arc voltage reduces stress to circuit components during fuse clearing Wide range of ampere ratings
Standard
UL recognized component File E60314 AC: UL guide no. JFHR2 (35-600A) DC: self-certified
Sub Brand
Amp-Trap®
Type
Round Body High-Speed Fuse-Links AC Protection
Voltage Rating
1000 V V
Voltage Rating
1000 V
Voltage Rating
1000VAC 750VDC
Package Dimensions (L x W x H)
5.72 in x 2 in x 2 in
Package Dimensions (L x W x H)
145.288 mm x 50.8 mm x 50.8 mm
Package Weight (Imperial)
1.550 lb
Package Weight (Metric)
0.703 kg
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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.