Mersen ATQ1-1/8 - Fuse ATQ - Midget - Time-Delay 500VAC 1.125A Ferrule Amp-Trap®
Mersen

ATQ1-1/8

Alternate Item Number: ATQ1-1/8

UPC: 782001903497


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Overview

The Mersen Amp-Trap ATQ1-1/8 is a midget time-delay fuse engineered for supplemental circuit protection. This ferrule-type fuse is rated for 500VAC and possesses a 1.125A current rating. It is specifically designed for applications where the available short circuit current does not exceed 10,000A. The ATQ1-1/8 is not intended for use in branch circuit protection. The ATQ series is characterized by its time-delay capabilities. It provides a delay of 12 seconds when subjected to 200% of its rated current. This feature makes it well-suited for circuits that experience high inrush currents. The physical dimensions of the ATQ1-1/8 are 1-1/2 inches by 13/32 inches (10 x 38 mm), which aligns with standard midget fuse sizes. This fuse has achieved UL listing under standard 248-14, with its listing file number being E33925. Furthermore, it is CSA Certified to Standard C22.2 No. 248-14. The ATQ1-1/8 is suitable for a range of supplemental protection applications, including lighting circuits, solenoid circuits, motor circuits, and transformer circuits. It is compatible for use with Mersen's UltraSafe™ Fuse holders. The ATQ1-1/8 is manufactured in the USA.
  • 500VAC Voltage Rating
  • 1.125A Current Rating
  • Midget Time-Delay Fuse
  • 1-1/2" x 13/32" (10 x 38 mm) Dimensions
  • UL Listed to Standard 248-14 & CSA Certified

Specifications

AC Voltage Rating
500 V
Amperage Rating
1.125 A
Application
Supplemental protection of lighting, solenoid, motor and transformer circuits
Body Material
GMG
Brand Name
Mersen
Class
Midget
Connection
Ferrule
Connection Material
Tin-Plated Copper
Fuse Class
Midget
Interrupt Rating
10 kA
Mounting
Clip
Size
1.5 x 0.41 in
Size
38.1 x 10.312 mm
Special Features
Numerous ratings for a wide variety of applications up to 500VAC Time-delay (12 seconds at 200 percent rating) for circuits with high inrush current Can be used with UltraSafe™ Fuse holders 1 1/2" x 13/32" (10 mm x 38 mm) dimensions
Standard
UL listed to standard 248-14 File E33925 CSA Certified to Standard C22.2 No. 248.14
Sub Brand
Amp-Trap®
Type
Midget Fuses
Voltage Rating
500 VAC
Package Dimensions (L x W x H)
1.5 in x 0.41 in x 0.41 in
Package Dimensions (L x W x H)
38.1 mm x 10.312 mm x 10.312 mm
Package Weight (Imperial)
0.014 lb
Package Weight (Metric)
0.006 kg
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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.