Mersen VSP40-2 - VSP MOV Fuses 600VAC Surge Capacity: 40kA Ferrule
Mersen

VSP40-2

Alternate Item Number: VSP40-2

UPC: 782001905248


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Overview

The Mersen VSP40-2 surge suppression fuse (SKU: VSP40-2) is a high-performance MOV protector designed for 600VAC systems, offering a 40kA 8/20μs surge rating and a 200kA interrupting rating (IR). Engineered to withstand transient surges without opening, it ensures SPD systems react effectively to overvoltage events while maintaining current-limiting performance under AC short-circuit conditions. The ferrule-mounted design provides reliable electrical contact and easy installation in OEM designs. Key specifications include a melting I²t of 19,543 A²s and clearing I²t of 59,904 A²s, with a peak let-through current (IPEAK) of 14,588A at 100kA 60Hz. Compliance with ANSI/UL 248 Special Purpose MOV Fuse (File E60314) guarantees safety and reliability in industrial and commercial applications. The VSP series supports surge ratings from 5kA to 100kA, making it adaptable for diverse protection needs. Ideal for protecting SPD systems in power distribution, renewable energy, and industrial automation, the VSP40-2 ensures compliance with stringent safety standards while minimizing downtime. Its current-limiting behavior under fault conditions reduces stress on downstream components, extending system lifespan.
  • 600VAC voltage rating for industrial power systems
  • 40kA 8/20μs surge rating for transient protection
  • 200kA interrupting rating (IR) for fault current handling
  • Ferrule mount design for secure electrical contact
  • ANSI/UL 248 compliant for safety and reliability

Specifications

AC Voltage Rating
600 V
Application
Protection of surge protection devices (SPD) Coordination with other protection devices
Body Material
GMG
Brand Name
Mersen
Connection
Ferrule
Connection Material
Tin-Plated Copper
Interrupt Rating
200 kA
Mounting
Clip
Size
2.25 x 0.82 in
Size
57.15 x 20.726 mm
Special Features
VSP fuses rated 600VAC, 200kA I.R. Surge ratings of 5-100kA 8/20 µSec capacity Various mounting configurations ferrules, blade, bolt-in, PC board mount
Standard
ANSI/UL 248 Special Purpose MOV Fuse, File E60314
Type
MOV Protection Fuses
Voltage Rating
600 VAC
Package Dimensions (L x W x H)
2.25 in x 0.82 in x 0.82 in
Package Dimensions (L x W x H)
57.15 mm x 20.726 mm x 20.726 mm
Package Weight (Imperial)
0.110 lb
Package Weight (Metric)
0.050 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.

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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.
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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.