Mersen A250C50-50 - Medium Voltage Capacitor Fuse 2500VAC 50A Male Stud To L Bracket Visual Indicator Amp-Trap®
Mersen

A250C50-50

Alternate Item Number: A250C50-50

UPC: 782001353544


Documents & Media
Technical DrawingLine Drawing

Contact for Pricing

Overview

The Mersen A250C50-50 is a medium voltage capacitor fuse engineered to meet ANSI C37-41 standards, delivering robust short circuit and overload protection specifically for capacitor banks. This Amp-Trap® fuse operates at a rating of 2500VAC and 50A, providing current-limiting protection. Its operation is characterized by the absence of noise and discharge, making it a suitable choice for both indoor general-purpose applications and outdoor weatherproof enclosures. The A250C50-50 is a non-disconnecting fuse, meaning it necessitates the use of a disconnect switch for its operational functionality. The fuse's mounting configuration, featuring a male stud to L bracket, is designed to offer manufacturers significant cost and space-saving advantages. A key feature of this fuse is its visual indicator, which provides unambiguous status confirmation, facilitating rapid identification of the fuse's condition. Manufactured in the United States, the A250C50-50 is specifically designed to protect against potential capacitor case rupture or dielectric failure, thereby ensuring the overall reliability and safety of the electrical system. This fuse stands as a dependable component for medium voltage capacitor protection systems utilized in industrial and utility sectors.
  • ANSI C37-41 compliant medium voltage capacitor fuse
  • 2500VAC rated, 50A current capacity
  • Current-limiting operation without noise or discharge
  • Male stud to L bracket mounting configuration
  • Visual indicator for clear fuse status identification

Specifications

AC Voltage Rating
2500 V
Amperage Rating
50 A
Application
Capacitor Protection Power Factor Correction Equipment Harmonic Filtering Equipment Induction Heating System High Power Drive Welders
Body Material
GMG
Connection
Male Stud To L Bracket
Connection Material
Tin-Plated Copper And Tin-Plated Brass
Connection Type
Male Stud To L Bracket
Current Rating
50 A
Interrupt Rating
50 kA
Mounting
Direct Mount
Mounting Type
L Bracket
Mounting Type
Male Stud to L Bracket
Series
Amp-Trap®
Series
Amp-Trap
Size
9.11 x 1.1;231.394 x 27.94 in;mm
Special Features
High interrupting capacity Current limitation Blown-fuse indication Direct mount Clip style mount Bus mount Non-venting for silent operation
Standard
ANSI
Type
Capacitor Protection Fuses
Type of Indicators
Visual Indicator
Voltage Rating
2500VAC
Package Dimensions (L x W x H)
9.11 in x 1.25 in x 1.25 in
Package Dimensions (L x W x H)
231.394 mm x 31.75 mm x 31.75 mm
Package Weight (Imperial)
1.410 lb
Package Weight (Metric)
0.640 kg
Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount

GPM-SRR90

Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount
Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20

E1062696

Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20
Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20

C331156

Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20
Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8

1SCM8

Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8
9F61 Size B Clips 1.6in

9F61BWW460

9F61 Size B Clips 1.6in
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 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.