Mersen W1062711 - Fuse Holder IEC+UL/CSA Modulostar® Size 10x38 800VAC UL 1000VDC UL 3-Pole+N IP20 DIN Rail mounting
Mersen

W1062711

Alternate Item Number: CUS103N

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Minimum Qty: 3

Multiplier: 3

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Overview

The Mersen Modulostar CUS103N (SKU: W1062711) is a modular fuse holder designed for 10x38mm fuse links, offering robust circuit protection for industrial applications. This 3-pole + neutral conductor unit provides finger-safe operation to IP20 standards, ensuring safety during fuse replacement. It supports a maximum voltage rating of 800VAC (UL) and 1000VDC (UL), making it suitable for diverse electrical systems. The CUS103N features convenient DIN rail mounting for straightforward installation and integration into control panels. Constructed from durable thermoplastic or thermoset material, it is built for longevity and reliable performance. This fuse holder is compatible with Mersen midget fuses and can be field-assembled into multi-pole configurations using the available pin-ties assembly kit. The Modulostar range prioritizes safety and modularity, enabling flexible setups and dependable circuit protection. Its compact design and robust construction contribute to efficient electrical circuit protection.
  • Modular design for flexible configurations
  • 3-pole + neutral conductor configuration
  • Accommodates 10x38mm fuse links
  • 800VAC (UL) and 1000VDC (UL) voltage ratings
  • IP20 finger-safe operation for enhanced safety

Specifications

AC Voltage Rating
800 V
Amperage Rating
32 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
1000 V
IP Rating
IP20
Material
thermoplastic or thermoset
Maximum Operating Temperature
70 C
Minimum Operating Temperature
-40 C
Mounting
DIN rail acc. EN 60715
Mounting Type
DIN Rail
Number Of Poles
4
Operating Temperature, Maximum
158 F
Operating Temperature, Minimum
-40 F
Poles
3-Pole+N
Poles
3P+N
Series
Modulostar CUS10
Series
Modulostar
Size
10x38
Size
2.41 x 2.76 x 3.12;61.1 x 70 x 79.3 in;mm
Size
10X38mm
Special Features
Modular design Compact design for space saving DIN rail mounting Degree of protection: IP20 Finger safe Easy access to the fuse Lockable without accessory Sealable in closed & open position Optional visual blown fuse indicator Multi-pole assembly kit available Plastic material UL94V2 mini Plastic material R22HL2 for railway application Flame retardant materials with glow wire flammability index to 960°C Schock and vibration tested for marine and railway applications
Standard
UL Recognized Component, UL4248, guide IZLT2 CSA Component acceptance C22.2 IEC 60269-2 and IEC 60947-3 RoHS, Reach compliant Marine certificates
Sub Brand
Modulostar®
Type
IEC+UL/CSA Fuse Holders
Voltage Rating
800 VAC / 1000 VDC
Package Dimensions (L x W x H)
2.41 in x 2.76 in x 3.12 in
Package Dimensions (L x W x H)
61.1 mm x 70 mm x 79.3 mm
Package Weight (Imperial)
0.412 lb
Package Weight (Metric)
0.187 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.