Mersen CRS20 - Fuse CRS - Class H 600VAC 20A Ferrule
Mersen

CRS20

Alternate Item Number: CRS20

UPC: 068938834326

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Overview

The Mersen CRS20 is a Class H ferrule fuse engineered for demanding 600VAC applications, offering a precise 20A current rating. This robust fuse is CSA Certified, specifically designated as Type 'D', and adheres strictly to Canadian Electrical Code requirements for low melting-point fuses. This certification guarantees compliance and enhances safety within industrial settings. The CRS20 is equipped with a substantial 10kA short circuit rating, providing dependable and strong protection against potentially damaging overcurrent events in electrical systems. As a key component of Mersen's established CRS series, this fuse consistently delivers reliable performance for standard protection needs across voltages up to 600V and current ratings up to 20A. Its ferrule connection type is designed for secure and straightforward installation, ensuring seamless compatibility with standard fuse holders. The Mersen CRS20 is an ideal choice for applications where accurate and effective overcurrent protection is paramount, serving as a trusted solution for critical components such as panelboards, motor circuits, and essential distribution systems. Manufactured by Mersen, identified by SKU CRS20, this fuse has undergone rigorous testing and certification for reliable use in both Canadian and U.S. markets, offering users significant versatility and the assurance of dependable protection.
  • 600VAC voltage rating for industrial applications
  • 20A current rating with Class H classification
  • Ferrule connection type for secure installation
  • 10kA short circuit rating for reliable protection
  • CSA Type 'D' certified, compliant with Canadian Electrical Code

Specifications

AC Voltage Rating
600 V
Amperage Rating
20 A
Body Material
Paper
Brand Name
Mersen
Class
Class H
Connection
Ferrule
Interrupt Rating
10 kA
Mounting
Clip
Size
5 x 0.81 in
Size
127 x 20.574 mm
Special Features
Type D fuses satisfy the Canadian Electrical Code requirement for low melting-point fuses
Standard
CSA Certified
Type
HRC Fuses
Voltage Rating
600 VAC
Package Dimensions (L x W x H)
5 in x 0.81 in x 0.81 in
Package Dimensions (L x W x H)
127 mm x 20.574 mm x 20.574 mm
Package Weight (Imperial)
0.110 lb
Package Weight (Metric)
0.050 kg
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CRN20

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CRN45

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Frequently Asked Questions

What is the voltage rating of the CRS20?

The CRS20 has a voltage rating of 600VAC, suitable for industrial applications.

What is the short circuit rating of the CRS20?

The CRS20 features a 10kA short circuit rating, providing high-level fault protection.

Is the CRS20 CSA certified?

Yes, the CRS20 is CSA Type 'D' certified and meets Canadian Electrical Code requirements.

What connection type does the CRS20 use?

The CRS20 uses a ferrule connection type for secure and reliable installation.

What is the current rating of the CRS20?

The CRS20 has a current rating of 20A, designed for standard overcurrent protection.

What class does the CRS20 belong to?

The CRS20 is classified as a Class H fuse, meeting specific performance standards.

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.