Mersen CRS70 - Fuse CRS - Class H 600VAC 70A Blade
Mersen

CRS70

Alternate Item Number: CRS70

UPC: 068938834401

Contact for Pricing

Overview

The Mersen CRS70 is a Class H fuse designed for industrial overcurrent protection. Manufactured by Mersen, a leader in electrical safety, this standard fuse (SKU: CRS70) features a 10kA interrupting rating and a blade terminal design for secure connections. It meets Canadian Electrical Code requirements for low melting-point fuses. Key specifications include a 600VAC voltage rating and a 70A current rating. The fuse body size is 22 x 58 mm, with a Watts Loss of 16.5W at its rated current. Its melting I²t is 0.52 x 10³ A²s, and max clearing I²t at 700VAC is 2.80 x 10³ A²s. Suitable for general-purpose applications where Class H performance is specified.
  • Mersen CRS70 Class H Fuse
  • 600VAC, 70A, Blade Type
  • 10kA Interrupting Rating
  • 22 x 58 mm Body Size
  • 16.5W Watts Loss at Rated Current

Specifications

AC Voltage Rating
600 V
Amperage Rating
70 A
Body Material
Paper
Brand Name
Mersen
Class
Class H
Connection
Blade
Connection Type
Blade
Current Rating
70A
Interrupt Rating
10 kA
Mounting
Bolted
Series
CRS
Size
7.88 x 1.38 in
Size
200.152 x 35.052 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)
7.88 in x 1.38 in x 1.38 in
Package Dimensions (L x W x H)
200.152 mm x 35.052 mm x 35.052 mm
Package Weight (Imperial)
0.550 lb
Package Weight (Metric)
0.249 kg
Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount

GPM-SRR90

Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount
Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20

C331156

Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20
Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8

1SCM8

Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8
Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20

E1062696

Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20
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.
9F61 Size B Clips 1.6in

9F61BWW460

9F61 Size B Clips 1.6in

Frequently Asked Questions

What is the voltage rating for the Mersen CRS70 fuse?

The Mersen CRS70 fuse has a voltage rating of 600VAC.

What is the amperage rating of the Mersen CRS70 fuse?

The Mersen CRS70 fuse is rated for 70 Amperes.

What type of terminal does the Mersen CRS70 fuse feature?

The Mersen CRS70 fuse features a blade terminal design.

What is the interrupting rating of the Mersen CRS70 fuse?

The Mersen CRS70 fuse has a 10kA interrupting rating.

What are the physical dimensions of the Mersen CRS70 fuse body?

The Mersen CRS70 fuse body measures 22 x 58 mm.

What is the Watts Loss for the Mersen CRS70 fuse at its rated current?

The Watts Loss for the Mersen CRS70 fuse at its rated current is 16.5W.

What is the melting I²t for the Mersen CRS70 fuse?

The melting I²t for the Mersen CRS70 fuse is 0.52 x 10³ A²s.

What is the maximum clearing I²t at 700VAC for the Mersen CRS70 fuse?

The maximum clearing I²t at 700VAC for the Mersen CRS70 fuse is 2.80 x 10³ A²s.

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.