Mersen A60C125-121 - Capacitor fuse A60C 600VAC 125A Screw-in Amp-Trap®
Mersen

A60C125-121

Alternate Item Number: A60C125-121

UPC: 782001935726

Contact for Pricing

Overview

The Mersen A60C125-121 is a specialized Amp-Trap® capacitor fuse designed for 600VAC applications, rated at 125A. This screw-in fuse provides critical protection for power correction and harmonic filtering equipment by isolating shorted capacitors. Typical capacitor failures, often caused by dielectric breakdown, can lead to low impedance paths, excessive heat, and potentially violent case rupture. The Mersen A60C series is engineered to interrupt these fault conditions before catastrophic failure occurs, safeguarding surrounding equipment and personnel. It is designed to withstand normal capacitor inrush currents during startup, ensuring reliable operation. Key features include a high interrupting rating of 200kA I.R. and current-limiting capabilities. This fuse is UL Recognized Component (File E60314) and tested by UL to CSA standard C22.2 No. 248.1. The A60C125-121 is a direct mount type, offering straightforward installation. Mersen's commitment to safety and reliability is evident in this essential component for maintaining the integrity of electrical systems.
  • 600VAC voltage rating
  • 125 Ampere rating
  • 200kA interrupting rating
  • Current-limiting protection
  • Withstands capacitor inrush current

Specifications

AC Voltage Rating
600 V
Amperage Rating
125 A
Application
Advanced safety for power correction and harmonic filtering equipment
Body Material
GMG
Brand Name
Mersen
Connection
Screw-in
Connection Material
Silver-Plated Brass
Connection Type
Screw-In
Current Rating
125A
Interrupt Rating
200 kA
Mounting
Direct Mount
Series
A60C
Size
3.82 x 1.22 in
Size
97.028 x 30.988 mm
Special Features
High interrupting rating Current-limiting Capacitor inrush withstand capability Direct mount Optional blown fuse indication
Standard
UL Recognized Component File E60314 Tested by UL to CSA standard C22.2 No. 248.1
Sub Brand
Amp-Trap®
Type
Capacitor Fuses
Voltage Rating
600 VAC
Package Dimensions (L x W x H)
3.82 in x 1.22 in x 1.22 in
Package Dimensions (L x W x H)
97.028 mm x 30.988 mm x 30.988 mm
Package Weight (Imperial)
0.600 lb
Package Weight (Metric)
0.272 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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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.