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Mersen A155B1D0R0-65E - Medium Voltage E-Rated Fuse 15500VAC 65A Bolt-On, Series: D0R0 Visual Indicator Amp-Trap®
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Mersen A155B1D0R0-65E Medium Voltage E-Rated Fuse 15500VAC 65A Bolt-On, Series: D0R0 Visual Indicator Amp-Trap®

Alternate Item Number: A155B1D0R0-65E

UPC: 782001506414


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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

The Mersen A155B1D0R0-65E is a medium-voltage E-rated bolt-on fuse from the Amp-Trap® series, designed for critical transformer and distribution line protection. Rated for 15.5kV AC and 65A, this fuse provides reliable overload and short-circuit protection in demanding industrial and utility environments. It operates within 1.7 times its rating up to its maximum interrupting rating of 50kA RMS symmetrical, ensuring consistent performance during fault conditions. This fuse features a single-barrel design with a 3-inch (76.2mm) diameter, allowing direct bolting to equipment bus or terminal pads for simplified installation and secure connectivity. The integrated visual indicator enables immediate fault detection, enhancing operational safety and reducing downtime. The A155B1D0R0-65E is suitable for indoor use or enclosed applications, making it ideal for transformer protection and medium-voltage distribution systems. Part of Mersen's D0R0 series, this fuse is engineered to withstand transformer magnetizing inrush current while delivering dependable protection in critical power systems.
  • 15.5kV AC voltage rating for medium-voltage applications
  • 65A current rating with 50kA RMS symmetrical interrupting rating
  • Single-barrel bolt-on design with 3-inch (76.2mm) diameter
  • Integrated visual indicator for immediate fault detection
  • Suitable for indoor or enclosed transformer and distribution line protection

Specifications

AC Voltage Rating
15500 V
Amperage Rating
65 A
Application
Protection for 5.5kV to 15.5kV transformers or distribution systems
Body Material
GMG
Brand Name
Mersen
Connection
Bolted
Connection Material
Silver-Plated Copper
Connection Type
Bolt-on
Current Rating
65 A
Frequency
60 Hz
Interrupt Rating
50 kA
Material
Ceramic/Metal
Mounting
Bolted
Mounting
Bolt-on
Mounting Type
Direct bolting to bus/terminal pads
Mounting Type
End mounts (direct bolting to equipment bus or terminal pads)
Mounting Type
End mounts
Mounting Type
Direct bolting to equipment bus or terminal pads
Mounting Type
Bolt-On
Series
D0R0
Series
Amp-Trap® D0R0
Series
D0R0 Amp-Trap®
Size
25.1 x 3 x 3.63;637.54 x 76.2 x 92.202 in;mm
Size
22.1 x 3 x 3.63 in
Size
561.34 x 76.2 x 92.202 mm
Size
D (3-inch diameter)
Size
3-inch diameter (size D)
Size
3-inch diameter, size D
Special Features
UL listed for compatibility with UL listed equipment Bolt-In mounting for direct connection to bus or terminals 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 Blown-fuse indicator to give positive identification of open fuse Amp trap: 1 lb tripped force - 0.44 Inch 9F62: 0.125 lb tripped force – 0.20 Inch
Standard
Some UL Listed to standard E143362
Sub Brand
Amp-Trap®
Type
General Purpose Bolt-On Fuses for Transformer Protection
Type of Indicators
Visual Indicator
Voltage Rating
15500 VAC
Package Dimensions (L x W x H)
22.1 in x 3 in x 3.63 in
Package Dimensions (L x W x H)
561.34 mm x 76.2 mm x 92.202 mm
Package Weight (Imperial)
14.000 lb
Package Weight (Metric)
6.350 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.

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.

Frequently Asked Questions

What is the voltage and amp rating for the 9F62KED300 fuse?

The 9F62KED300 fuse has a voltage rating of 15.5 kV and an amp rating of 300A.

What is the interrupting rating for the 9F62KED300 fuse?

The 9F62KED300 fuse has a maximum interrupting rating of 50kA Sym.

Can the 9F62KED300 fuse be used outdoors?

Yes, the 9F62 Series, including the 9F62KED300, is suitable for outdoor use.

What is the maximum interrupting rating for the A050B fuse?

The A050B fuse has a maximum interrupting rating of 59kA Sym.

What is the maximum interrupting rating for the A072B fuse?

The A072B fuse has a maximum interrupting rating of 65kA Sym.

What is the maximum interrupting rating for the A083B fuse?

The A083B fuse has a maximum interrupting rating of 70kA Sym.

What is the maximum interrupting rating for the A155B fuses?

The A155B fuses have a maximum interrupting rating of 50kA Sym.

What is the maximum interrupting rating for the 9F62 Series fuses?

The 9F62 Series fuses have a maximum interrupting rating of 50kA Sym.

What type of fuse support is needed for the 9F62KED300 fuse?

For indoor use, the 9F61AHG001 fuse support is needed. For outdoor use, the 9F61CHL009 fuse support is required.

What is the interrupting rating for the Amp-Trap Bolt-in Series A155B fuses?

The Amp-Trap Bolt-in Series A155B fuses have a maximum interrupting rating of 50kA Sym.

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.