Mersen A120X30-1 - High Speed Fuse Amp-Trap® A120X 1200VAC 1000VDC 30A Ferrule
Mersen

A120X30-1

Alternate Item Number: A120X30-1

UPC: 782001944650


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Overview

The Mersen A120X30-1 Amp-Trap® Form 101 high speed fuse delivers precise protection for high-voltage auxiliary circuits in traction drives and similar applications. Rated at 1200VAC and 1000VDC with a 30A current rating, this fuse is engineered for low time constant DC circuits and high-performance AC systems. Its compact design fits where competitive fuses cannot, ensuring space-efficient installations without compromising protection. The fuse offers a 100kA interrupting rating (AC/DC), fast-acting response, and low I²t to minimize damage to protected components during short circuits. With UL recognition (File E 60314), the A120X30-1 meets rigorous safety standards for industrial and traction applications. Ideal for auxiliary circuits in electric vehicles, rail systems, and heavy-duty equipment where reliability and precision are critical.
  • Voltage rating: 1200VAC / 1000VDC for versatile AC and DC circuit protection
  • Current rating: 30A with 100kA interrupting rating (AC/DC)
  • Compact ferrule design fits in tight spaces where larger fuses won't
  • Fast-acting and current-limiting to protect sensitive components
  • UL recognized (File E 60314) for compliance with industrial standards

Specifications

AC Voltage Rating
1200 V
Amperage Rating
30 A
Application
Protection of traction drive auxiliary circuits, etc.
Brand Name
Mersen
Case
GMG
Connection
Ferrule
Mounting
Clip
Size
4.63 x 0.81 in
Size
117.602 x 20.625 mm
Special Features
1000V DC rated for wide range of circuits Compact size fits in where competitive sizes will not fit
Standard
UL recognized component File E 60314
Sub Brand
Amp-Trap®
Type
Round Body High-Speed Fuse-Links AC Protection
Voltage Rating
1200 V
Package Dimensions (L x W x H)
4.63 in x 0.81 in x 0.81 in
Package Dimensions (L x W x H)
117.602 mm x 20.625 mm x 20.625 mm
Package Weight (Imperial)
0.200 lb
Package Weight (Metric)
0.091 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 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.