Mersen USFMCCMI - 600VAC 600VDC Class CC 30A 3-Pole LED and Microswitch Pressure Plate IP20
Mersen

USFMCCMI

Alternate Item Number: USFMCCMI

UPC: 782001356835

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Overview

The Mersen UltraSafe™ Fuse Module (USFMCCMI) is a high-performance, Class CC fuse module engineered for 45mm IEC contactors, delivering robust protection at 600VAC/600VDC and 30A continuous current. Designed to meet the demands of modern industrial and commercial electrical systems, this compact module integrates seamlessly with IEC contactor assemblies while offering advanced safety and operational features not found in standard Class CC or midget fuse holders. The USFMCCMI is part of Mersen’s renowned UltraSafe™ product line, a trusted name in electrical protection solutions for over a century, ensuring reliability in mission-critical applications. This 3-pole fuse module features an auxiliary contact with an LED and microswitch pressure plate, enabling immediate load drop-out when the fuse extractor handle is opened—a critical safety function for maintenance personnel. The auxiliary contact can be wired to adjacent contactors, providing an interlock that prevents accidental exposure to live circuits during fuse replacement. Additional safety features include padlock capabilities for secure operation, compact busbars for streamlined line-side terminations, and tool-free removal from DIN-rail mounting, reducing installation time and complexity. The USFMCCMI is built with Mersen’s signature IP20 protection, safeguarding against accidental contact with live components while allowing for clear visual indication of an open fuse condition. Its easy-operating fuse extraction handle ensures smooth maintenance, and the compact design optimizes panel space without compromising performance. Whether used in motor control centers, panelboards, or industrial machinery, this fuse module is ideal for applications requiring high interrupting ratings, precise fault protection, and compliance with stringent safety standards. Industries such as manufacturing, automation, HVAC, and renewable energy rely on Mersen’s UltraSafe™ Fuse Modules for their proven durability, compliance with UL and IEC standards, and compatibility with a wide range of IEC contactors. Professionals select the USFMCCMI for its unique combination of safety, functionality, and ease of installation, making it a preferred choice for engineers and electricians seeking a dependable Class CC solution. With Mersen’s global reputation for innovation and quality, the USFMCCMI delivers unmatched protection and peace of mind in electrical distribution systems.
  • 600VAC/600VDC, 30A Class CC fuse module for 45mm IEC contactors
  • Auxiliary contact with LED and microswitch pressure plate for immediate load drop-out
  • Padlock capabilities, compact busbars, and tool-free DIN-rail removal
  • IP20 protection with open fuse visual indication for enhanced safety
  • Part of Mersen’s trusted UltraSafe™ line, compliant with UL and IEC standards

Specifications

AC Voltage Rating
600 V
Amperage Rating
30 A
Application
Primarily for motor circuits to replace circuit breakers for higher SCCR ratings Other circuits up to 600 volts for control circuits, transformers, etc. Non-load disconnect Padlock compliance RECOMMENDED FUSE USAGE: USM use with: ATQ, ATM(1), A6Y-2B, A25Z-2, TRM, OTM, A13X-2, A60Q-2, DCT(1) USCC use with: ATDR, ATMR(1), ATQR (1) Recommended for DC applications
Application
Primarily for replacement of circuit breakers in motor circuits to achieve higher SCCR Circuits up to 600V for motors, control, transformers, etc… Applications requiring lock-out / tag-out procedures
Brand Name
Ferraz Shawmut
Class
Class CC
Connection
Pressure Plate
Connection Type
Line side terminations (compact busbars)
Current Rating
30A
DC Voltage Rating
600 V
IP Rating
IP20
Mounting
DIN Rail
Mounting
DIN-rail
Mounting Type
DIN-Rail
Number of poles
3
Phase
3
Poles
3-pole
Series
UltraSafe
Size
1.77 x 2.58 x 3.54 in
Special Features
Dedicated 3-pole fuse module Finger-safe Compact footprint with 45mm width Auxiliary contact option (1NO/1NC) Ability to padlock in OPEN position with 1/4" shank diameter DIN-rail mount with tool free removal Quick, easy fuse change Optional indicator lights
Special Features
Dedicated 3-pole fuse module Compact footprint - 45mm width IP20 Finger-safe Auxiliary contact option (1NO/1NC) Ability to padlock in Open position with 1/4" diameter shank DIN-rail mount with tool free removal Optional visual blown fuse indication
Standard
USFMCC (Class CC Fuses) UL Listed, guide IZLT, File E52283 CSA Certified C22.2, class 6225 01, File 32169 USFM10 (Midget 10x38mm Fuses) UL Recognized Component, guide IZLT2, File E52283 CSA Certified C22.2, Class 6225 01, File 32169 IEC Certified 60269-1, 60947-3 (690VAC, 32A, 120kA)
Standard
UL Listed to standard 4248-4, File E52283 CSA Certified C22.2, Class 6225, File 32169 UL Listed to standard 508, File E336456 UL Recognized Component to standard 4248-1, File E319605 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
UL/CSA Fuse Holders
Type
UltraSafe
Voltage Rating
600 VAC
Voltage Rating
600VAC/600VDC
Voltage Rating
600VAC 600VDC
Package Dimensions (L x W x H)
3.54 IN x 2.27 IN x 2.27 IN
Package Dimensions (L x W x H)
8.9916 cm x 5.7658 cm x 5.7658 cm
Package Weight (Imperial)
0.450 L
Package Weight (Metric)
0.204 kg

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Mersen UltraSafe Fuse Modules (USFM) have a unique, compact design suited for use with 45mm wide IEC contactors. These modules also offer other features not found on other class CC and midget UltraSafe fuseholders such as an auxiliary contact option. When the auxiliary is wired to an adjacent contactor the load is dropped out by the contactor immediately once the fuse extractor handle is opened. Additionally, the fuse module features padlock capabilities, compact bus bars for line side terminations, and tool free removal from DIN rail. Yet the fuse modules still incorporate well known UltraSafe features such as IP20 protection, easy operating fuse extraction handles and an open fuse visual indication option. Blank marking strip

USCM0

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.