Mersen USM1I-DC1000 - Mersen UltraSafe modular fuseholders introduce a new level of safety for class CC and midget fuses up to 30 amperes. UltraSafe fuseholders qualify as "finger safe" under IEC and DIN standards to an IP20 grade of protection, including fuse changing (with the flick of a finger). UltraSafe fuseholders are available in 1, 2, 3 or 4 poles, with or without visual blown-fuse indicators in each pole. Multiple poles can be assembled in the field by ordering and installing pin-tie handles. UltraSafe fuseholders save up to 15 percent mounting space and any combination can be snapped onto 35mm DIN rail for extra savings in panel building time. Choose class CC fuses for Type "2" no-damage protection, one of the safest protection packages in the industry. The UltraSafe body material is tough and durable polyamide, with exceptional insulating properties. 600 Volts 30 amps 1 poles 1000V DC voltage indicator .
Mersen

USM1I-DC1000

Alternate Item Number: 782001412241

UPC: 782001412241

Contact for Pricing

Overview

The Mersen UltraSafe USM1I-DC1000 modular fuseholder represents a significant advancement in industrial safety and operational efficiency, specifically engineered for Class CC and midget fuses up to 30 amperes. This single-pole unit, part of Mersen's innovative UltraSafe series, sets a new benchmark by qualifying as "finger safe" under stringent IEC and DIN standards, achieving an IP20 grade of protection. This crucial safety feature extends even to the process of fuse changing, which can be accomplished with a simple flick of a finger, dramatically reducing the risk of electrical shock in demanding industrial environments. Engineered for versatility and space optimization, the UltraSafe fuseholders are available in 1, 2, 3, or 4-pole configurations. For applications requiring more than a single pole, Mersen offers the flexibility to assemble multiple poles in the field by ordering and installing pin-tie handles, allowing for customized protection solutions. Furthermore, the modular design of the UltraSafe series offers substantial panel building advantages. Multiple fuseholders can be seamlessly snapped onto a standard 35mm DIN rail, leading to significant savings in both mounting space – up to 15% compared to traditional fuseholder solutions – and valuable panel building time. This streamlined installation process is a key benefit for OEMs and system integrators seeking to optimize their designs and reduce labor costs. The USM1I-DC1000 is constructed from a tough and durable polyamide material, renowned for its exceptional insulating properties and robust mechanical strength. This ensures reliable performance and longevity, even in harsh industrial settings subject to vibration, temperature fluctuations, and chemical exposure. The 600 Volt, 30 Amp rating makes it suitable for a wide array of power distribution and control circuit applications. For critical systems requiring the highest level of protection, pairing these fuseholders with Class CC fuses provides Type "2" no-damage protection, a superior safety standard that safeguards equipment and personnel from catastrophic failures. Key Features and Benefits: * **Enhanced Safety:** "Finger safe" design (IP20) compliant with IEC and DIN standards for superior personnel protection. * **Space Savings:** Compact, modular design saves up to 15% mounting space on panels. * **DIN Rail Mounting:** Easily snaps onto 35mm DIN rail for quick and efficient installation, reducing panel building time. * **Durable Construction:** Made from tough, insulating polyamide for exceptional longevity and reliability. * **Versatile Configurations:** Available in 1, 2, 3, or 4 poles, with field-assembly options for multi-pole configurations. * **Visual Indicators:** Options for visual blown-fuse indicators in each pole for quick fault identification. * **Superior Protection:** Ideal for use with Class CC fuses, offering Type "2" no-damage protection for critical circuits. Applications for the Mersen UltraSafe USM1I-DC1000 include motor control centers, industrial automation systems, power distribution panels, HVAC controls, and any application where reliable, safe, and space-efficient fuse protection is paramount. Mersen's reputation for quality and innovation in electrical protection ensures that the UltraSafe series delivers performance and peace of mind for critical industrial operations.
  • Mersen UltraSafe USM1I-DC1000 modular fuseholder for Class CC fuses
  • 600V AC / 30A rating, 1-pole configuration
  • IP20 rated "finger safe" under IEC and DIN standards for enhanced safety
  • Durable polyamide construction with exceptional insulating properties
  • 35mm DIN rail mountable for space-saving and quick installation

Specifications

Amperage Rating
30 A
Application
All circuits up to 600 volts for motors, control circuits, transformers, etc. DC circuits up to 1000VDC
Brand Name
Ferraz Shawmut
Class
Midget
Connection
Pressure Plate
Current Rating
30 A
IP Rating
IP20
Material
Polyamide
Mounting
DIN-rail
Mounting Type
DIN Rail
Phase
1
Poles
1
Series
UltraSafe
Special Features
IP20 Finger-Safe Optional visual blown fuse indication DIN-rail mounting Compact footprint Quick, tool-free, easy fuse change outs
Standard
UL Recognized Component to standard 4248-14, File E52283 CSA Certified C22.2, Class 6225, File 32169 IEC Compliant to 60269-2-1, 60947-3
Type
UltraSafe
Voltage Rating
600 VAC
Package Dimensions (L x W x H)
3.07 IN x 0.69 IN x 2.32 IN
Package Dimensions (L x W x H)
7.7978 cm x 17.526 mm x 5.8928 cm
Package Weight (Imperial)
0.140 L
Package Weight (Metric)
0.064 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.