Mersen H331000 - Fuse Holder Modulostar® Size 14x51 IEC 690VAC 690VDC 3-Pole+N With Visual Indicator Microswitch IP20
Mersen

H331000

Alternate Item Number: CMS143NMI

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Overview

The Mersen H331000 is a modular fuse holder from the innovative Modulostar® range, designed for robust protection and operational efficiency. This specific unit is a 3-pole + Neutral configuration, accommodating IEC 14x51 size fuses. It boasts a high voltage rating of 690VAC and 690VDC, making it suitable for demanding industrial applications. The Modulostar® series is engineered for finger-safe operation, achieving an IP20 grade of protection, which includes safety during fuse replacement – a simple flick of the finger is all that's required. Available in both thermoplastic and thermoset materials, this holder offers durability and resilience. The H331000 features a visual blown fuse indicator, providing immediate confirmation of fuse status, and is equipped with a microswitch for remote indication capabilities, enhancing system monitoring and control. Its modular design allows for flexible configuration, with multi-pole units field-assemblable using pin-tie kits. The compact 14x51 size ensures efficient use of panel space. Mersen's commitment to safety and performance is evident in the Modulostar® range, providing reliable fuse protection for a variety of electrical systems. SKU: H331000. Manufacturer: Mersen. UNSPSC Code: 39121624. Country of Origin: US.
  • Mersen Modulostar® range, SKU H331000
  • 3-Pole + Neutral configuration
  • 690VAC / 690VDC voltage rating
  • IEC 14x51 fuse size
  • IP20 finger-safe protection with visual indicator and microswitch

Specifications

AC Voltage Rating
690 V
Amperage Rating
50 A
Application
All circuits up to 690V for protection of motors, transformers, low voltage distribution, control circuits, drive protection Non-load operation
Brand Name
Mersen
DC Voltage Rating
690 V
Maximum Operating Temperature
60 C
Minimum Operating Temperature
-25 C
Mounting
DIN rail acc. EN 60715
Number Of Poles
4
Operating Temperature, Maximum
140 F
Operating Temperature, Minimum
-13 F
Size
3.01 x 4.17 x 4.36;76.5 x 106 x 110.8 in;mm
Special Features
Finger safe Degree of protection: IP20 Optional visual blown fuse indicator DIN rail mounting Modular design Lockable Multi-pole assembly kit available Sealable in closed and open position Plastic material UL94V2 mini Flame retardant materials with glow wire flammability index to 960°C Shock and vibration tested for marine and railway applications
Standard
IEC 60269-2 and IEC 60947-3 Compliance RoHS Compliant Plastic material: NF 16101 & 16102 Requirement 2 Compliant
Sub Brand
Modulostar®
Type
IEC Cylindrical Fuse Holders
Voltage Rating
690 VAC
Package Dimensions (L x W x H)
3.01 in x 4.17 in x 4.36 in
Package Dimensions (L x W x H)
76.5 mm x 106 mm x 110.8 mm
Package Weight (Imperial)
1.248 lb
Package Weight (Metric)
0.566 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.