Mersen A825X150E-1 - Medium Voltage E-Rated Fuse 8250VAC 150A Visual Indicator Amp-Trap®
Mersen

A825X150E-1

Alternate Item Number: 782001803780

UPC: 782001803780


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Overview

The Mersen Amp-Trap® A825X150E-1 is a medium voltage, E-Rated fuse designed for critical overload and short-circuit protection. Rated at 8250VAC (8.25kV) and 150A, this current-limiting fuse offers robust protection for transformers and distribution lines. It features a 2-barrel design with a 3-inch diameter and a length of 15.88 inches, ensuring compatibility with standard fuse holders and spring-reinforced clips. The A825X150E-1 is engineered to melt at approximately 1.7 times its rated current, providing rapid fault response while effectively managing transformer magnetizing inrush currents. With a maximum interrupting rating of 70kA RMS Sym, it delivers reliable safety in industrial and utility environments. Manufactured in the USA, this fuse meets UNSPSC 39121626 for electrical distribution components and includes a visual indicator for positive blown-fuse identification. Ideal for protecting transformers, switchgear, and distribution systems where medium voltage protection is paramount.
  • Medium Voltage E-Rated Fuse: 8250VAC (8.25kV) and 150A rating.
  • Current-Limiting Protection: Rapidly responds to faults at 1.7x rated current.
  • Visual Indicator: Provides clear indication of a blown fuse.
  • High Interrupting Rating: 70kA RMS Sym for robust fault protection.
  • Durable Construction: 2-barrel design, 3" diameter, 15.88" length, made in the USA.

Specifications

AC Voltage Rating
8250 V
Amperage Rating
150 A
Application
Protection for 6.9 kV to 8.3 kV transformers or distribution systems.
Body Material
PolyTube
Brand Name
Mersen
Connection
Ferrule
Connection Material
Silver-Plated Copper
Connection Type
Ferrule
Current Rating
150A
Interrupt Rating
50 kA
Mounting
Clip
Mounting Type
Spring-reinforced clips
Mounting Type
Spring reinforced clips
Series
Amp-Trap®
Series
Amp-Trap® E-Rated
Size
15.88 x 3 x 6.63 in
Size
403.352 x 76.2 x 168.402 mm
Size
Size C/D/DD (2/3/2x3 inch diameter)
Size
2x3" (size DD)
Special Features
Amp-Trap CS-3 and 9F62 series are UL listed for compatibility with UL listed equipment Ferrule mounting for standard clips and interchangeability with other brands of fuses Current-limiting for superior equipment protection Non-venting for silent operation Metal embossed catalog number and manufacturing date for lasting identification Outdoor usage for the 9F62 and 9F60 type EJO Blown-fuse indicator to give positive identification of open fuse: Amp-Trap: 2" Barrel 1 lb tripped force - 0.19 Inch Amp-Trap: 3" Barrel 2 lb tripped force - 0.50 Inch 9F60/9F62: 0.125 lb tripped force – 0.20 Inch
Standard
Some UL listed to standard File E143362
Sub Brand
Amp-Trap®
Type
General Purpose Ferrule Mount Fuses for Transformer Protection
Type Of Indicators
Visual Indicator
Voltage Rating
8250 VAC
Package Dimensions (L x W x H)
15.88 in x 3 in x 6.63 in
Package Dimensions (L x W x H)
403.352 mm x 76.2 mm x 168.402 mm
Package Weight (Imperial)
19.500 lb
Package Weight (Metric)
8.845 kg
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Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20

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Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8
Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20

E1062696

Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20
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.

LCC5

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.
9F61 Size B Clips 1.6in

9F61BWW460

9F61 Size B Clips 1.6in

Frequently Asked Questions

What is the maximum voltage rating for the Mersen A825X150E-1 fuse?

The Mersen A825X150E-1 fuse has a maximum voltage rating of 8.25kV (8250VAC).

What is the amp rating of the Mersen A825X150E-1 fuse?

The amp rating for the Mersen A825X150E-1 fuse is 150E.

Does the Mersen A825X150E-1 fuse have a blown fuse indicator?

Yes, the Mersen A825X150E-1 fuse features a visual indicator for positive identification of an open fuse.

What is the maximum interrupting rating of this fuse?

The Mersen A825X150E-1 fuse has a maximum interrupting rating of 70kA RMS Sym.

What are the physical dimensions of the Mersen A825X150E-1 fuse?

The Mersen A825X150E-1 fuse has a diameter of 3 inches (76.2 mm) and a length of 15.88 inches (403 mm).

Where is the Mersen A825X150E-1 fuse manufactured?

The Mersen A825X150E-1 fuse is manufactured in the USA.

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.