Mersen A155C2DNR0-150E - Mersen Amp-Trap fuses for the protection of transformers and distribution lines deliver overload and short circuit protection. These general purpose current-limiting fuses will melt at current that can be as low as 1.7 times the fuse current ratings up to its maximum interrupting rating. These fuses are designed to withstand the transformer magnetizing inrush current. They are single, double or triple barrels 3 inch diameter (size D) and mount in unique cam-locking clips for superior connections as well as easy installation and replacement. 15500 Volts 150 Amps C2 DNR0 series.
Mersen

A155C2DNR0-150E

Alternate Item Number: 782001461874

UPC: 782001461874

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Overview

The Mersen Amp-Trap fuse, model A155C2DNR0-150E, is engineered for critical protection of transformers and distribution lines in high-voltage industrial power systems. As a general-purpose, current-limiting fuse, it provides robust overload and short-circuit protection, safeguarding valuable equipment from damaging electrical faults. This fuse is designed to activate at currents as low as 1.7 times its rated current, offering precise and reliable fault interruption up to its maximum interrupting rating, thereby minimizing downtime and repair costs. Specifically designed for the demanding environment of transformer protection, the A155C2DNR0-150E fuse is built to withstand the significant magnetizing inrush currents characteristic of transformer energization. This capability prevents nuisance tripping while ensuring that dangerous sustained overcurrents are effectively cleared. The fuse features a substantial 3-inch diameter (size D) construction, accommodating high current and voltage ratings. Installation and maintenance are streamlined thanks to Mersen's innovative cam-locking clips. These unique clips ensure superior electrical connections, providing low resistance and high reliability. Furthermore, they facilitate exceptionally easy installation and replacement, reducing labor time and enhancing safety for maintenance personnel. This design is crucial in industrial settings where quick and secure fuse changes are often required. Key features and benefits of the Mersen Amp-Trap A155C2DNR0-150E include: * **Superior Protection:** Offers reliable overload and short-circuit protection for transformers and distribution lines. * **Precise Fault Interruption:** Current-limiting design melts at low overcurrents (as low as 1.7x rating) for swift fault clearing. * **Inrush Current Withstanding:** Engineered to tolerate transformer magnetizing inrush currents without premature operation. * **High Voltage & Current Ratings:** Rated for 15500 Volts and 150 Amps, suitable for demanding applications. * **Robust Construction:** Single, double, or triple barrel design with a 3-inch diameter (size D). * **Easy Installation & Secure Connections:** Features unique cam-locking clips for superior electrical contact and simplified maintenance. With a voltage rating of 15500V and a current rating of 150A, this C2 DNR0 series fuse is an indispensable component for ensuring the integrity and longevity of electrical infrastructure in sectors such as utility power, heavy manufacturing, and large commercial facilities. Mersen's reputation for quality and innovation in electrical protection solutions makes the Amp-Trap fuse a trusted choice for engineers and facility managers prioritizing safety and operational continuity.
  • Mersen Amp-Trap fuse for transformer and distribution line protection.
  • 15500 Volts, 150 Amps, C2 DNR0 series.
  • General purpose current-limiting fuse with overload and short circuit protection.
  • Designed to withstand transformer magnetizing inrush currents.
  • 3-inch diameter (size D) with unique cam-locking clips for superior connections and easy installation/replacement.

Specifications

Amperage Rating
150 A
Application
Protection for 12kV to 15.5kV transformers or distribution systems.
Brand Name
Ferraz Shawmut
Connection
Blade
Mounting
Clip-lock
Special Features
UL listed for compatibility with UL listed equipment. Clip-lock mounting for reliable high integrity connection into circuit. Current-limiting for superior equipment protection. Non-venting for silent operation Metal embossed catalog number and manufacturing date for lasting identification. Blown-fuse indicator to give positive identification of open fuse. 2 lb tripped force - 0.50 Inch
Standard
UL listed to standard File E143362
Type
General Purpose Fuses E-Rated
Voltage Rating
15500 VAC
Package Dimensions (L x W x H)
23 IN x 8 IN x 3.12 IN
Package Dimensions (L x W x H)
58.42 cm x 20.32 cm x 7.9248 cm
Package Weight (Imperial)
28.770 L
Package Weight (Metric)
13.050 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.

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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 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.