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Overview
- Rated 15,500VAC and 50A with 50kA RMS symmetrical interrupting rating
- 3-inch diameter ferrule mounting for compatibility with spring-reinforced clips
- Visual indicator for immediate fault confirmation and reduced downtime
- Responds to fault currents as low as 1.7x rated value, withstands inrush currents
- Suitable for indoor use with compatible disconnects and supports
Specifications
AC Voltage Rating | 15500 V |
Amperage Rating | 50 A |
Application | Protection for 12 kV to 15.5 kV transformers or distribution systems. |
Body Material | PolyTube |
Brand Name | Mersen |
Connection | Ferrule |
Connection Material | Silver-Plated Copper |
Connection Type | Ferrule |
Current Rating | 50 A |
Interrupt Rating | 50 kA |
Mounting | Clip |
Mounting Type | spring‑reinforced clips |
Mounting Type | Spring-reinforced clips |
Series | D0R0 |
Series | D0R0 Amp-Trap® |
Size | Size C (2-inch diameter barrel) |
Size | C (2") |
Size | 2" (C) |
Size | 2 inch diameter barrel (size C) |
Size | C (2"), D (3"), DD (2x3") |
Size | 2" diameter barrel (Size C) |
Size | 18.87 x 3 in |
Size | 479.298 x 76.2 mm |
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 | 15500 VAC |
Package Dimensions (L x W x H) | 18.87 in x 3 in x 3 in |
Package Dimensions (L x W x H) | 479.298 mm x 76.2 mm x 76.2 mm |
Package Weight (Imperial) | 11.150 lb |
Package Weight (Metric) | 5.058 kg |
GPM-SRR90
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C331156
Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20
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 rating of the A155F1D0R0-50E?
The fuse is rated for a maximum voltage of 15,500VAC.
What is the interrupting rating of this fuse?
The maximum interrupting rating is 50kA RMS symmetrical.
What is the diameter of the fuse barrel?
The fuse barrel has a diameter of 3 inches (76.2 mm).
Is this fuse suitable for outdoor use?
No, this fuse is designed for indoor use or enclosed environments only.
What is the length of the A155F1D0R0-50E?
The fuse length is 18.87 inches (479 mm).
Does this fuse have a visual indicator?
Yes, the fuse includes a visual indicator for fault confirmation.
What transformer ratings is this fuse compatible with?
The fuse is suitable for medium-voltage transformers up to 15.5kV nominal.
What is the response time to fault currents?
The fuse responds to fault currents as low as 1.7 times its rated value.
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.