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Overview
- IP20 Finger-Safe protection for safe fuse changes
- Rated for 800VAC and 1000VDC, 30A maximum current
- Pressure plate terminal for secure wire connections
- Compact, modular design for 35mm DIN-rail mounting
- UL Recognized, CSA Certified, and IEC 60269-2-1 compliant
Specifications
AC Voltage Rating | 800 V |
Amperage Rating | 30 A |
Application | All circuits up to 600 volts for motors, control circuits, transformers, etc… DC circuits up to 1000VDC including photovoltaic applications Non-load disconnect |
Brand Name | Mersen |
Class | Midget |
Connection | Pressure Plate |
DC Voltage Rating | 1000 V |
Material | Polyamide |
Maximum Operating Temperature | 80 C |
Mounting | DIN Rail |
Number Of Poles | 1 |
Operating Temperature, Maximum | 176 F |
Phase | 1 |
Size | 3.07 x 0.69 x 2.32;77.978 x 17.526 x 58.928 in;mm |
Special Features | IP20 Finger-Safe (touch safe) Optional visual blown fuse Indicator lights DIN-rail mounting Compact footprint Quick, tool-free, easy fuse change outs USM use with: ATQ, ATM, A6Y-2B, A25Z-2, TRM, OTM, A13X-2, A60Q-2, DCT, HP6M, HP10M USCC use with: ATDR, ATMR, ATQR ATM, DCT, ATMR recommended for DC applications |
Standard | UL Listed to Standard 4248- 4 (class CC) and UL Recognized to Standard 4248-1 (midget), File E52283 UL Listed to standard 4248-18 (photovoltaic), File E347822 CSA Certified C22.2 IEC 60269-2-1 and 60947-3 Compliant (USM only) |
Sub Brand | UltraSafe™ |
Type | UL/CSA Fuse Holders |
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) | 77.978 mm x 17.526 mm x 58.928 mm |
Package Weight (Imperial) | 0.140 lb |
Package Weight (Metric) | 0.064 kg |
C331156
Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20
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 .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.