Mersen ATDR3 - Fuse ATDR - Class CC - Time-Delay 600VAC 300VDC 3A Ferrule Amp-Trap 2000®
Mersen

ATDR3

Alternate Item Number: ATDR3

UPC: 782001900960


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Overview

The Mersen ATDR3 (SKU: ATDR3) is a Class CC, time-delay fuse designed for robust branch circuit protection. Engineered to provide IEC Type 2 "no damage" protection, it safeguards sensitive electronic components and small motors from fault-related damage. This fuse excels in applications requiring excellent cycling ability, making it ideal for frequent motor starts and stops without nuisance opening. Its time-delay characteristic effectively handles motor starting inrush currents. The ATDR3 offers highly current-limiting performance, ensuring low peak let-thru current. Key features include a rejection-style design for error-free replacement when used with recommended Mersen fuse blocks, a high-visibility orange label for quick identification, and metal-embossed date and catalog number for lasting traceability. The fiberglass body provides dimensional stability in demanding industrial environments, while high-grade silica filler ensures rapid arc quenching and optimal current limitation. Rated for 600VAC and 300VDC, with an interrupting rating of 200kA AC and 100kA DC, the ATDR3 is UL listed to standard 248-4 (File E2137) and CSA certified to standard C22.2 No. 248.4. Applications include small motors, contactors, lighting, heating, general loads, and control transformers. Mersen's Amp-Trap 2000® series fuses deliver reliable protection for modern electrical systems.
  • Time-delay for motor starting inrush currents without nuisance opening
  • IEC Type 2 "no damage" protection for sensitive components and small motors
  • Highly current-limiting for low peak let-thru current
  • Rejection-style design prevents replacement errors with compatible fuse blocks
  • UL listed to standard 248-4 and CSA certified to standard C22.2 No. 248.4

Specifications

AC Voltage Rating
600 V
Amperage Rating
3 A
Application
Small motors Contactors Lighting, heating & general loads Branch circuit protection
Body Material
GMG
Brand Name
Mersen
Class
Class CC
Connection
Ferrule
Connection Material
Tin-Plated Copper
Current Rating
3A
Interrupt Rating
200 kA
Material
Ferrule
Mounting
Clip
Series
Amp-Trap 2000
Size
1.5 x 0.41 in
Size
38.1 x 10.414 mm
Size
1.5 x 0.41;38.1 x 10.414 in;mm
Special Features
Time-delay for motor starting inrush currents without nuisance opening Highly current-limiting for low peak let-thru current Improved cycling ability for frequent motor starts/stops without nuisance fuse opening Rejection-style design prevents replacement errors (when used with recommended fuse blocks) High-visibility orange label ensures instant brand recognition, simplifies replacement Metal-embossed date and catalog number for traceability and lasting identification Fiberglass body provides dimensional stability in harsh industrial settings High-grade silica filler ensures fast arc quenching and optimum current-limitation
Standard
UL listed to standard 248-4 File E2137 CSA certified to standard C22.2 No. 248.4 DC listed to UL standard 248
Sub Brand
Amp-Trap 2000®
Type
Class CC
Voltage Rating
600 VAC
Voltage Rating
600VAC 300VDC
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 10.414 mm x 10.414 mm
Package Weight (Imperial)
0.017 lb
Package Weight (Metric)
0.008 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.