Contact for Pricing
Overview
- IP20 finger-safe protection for enhanced safety
- Accommodates IEC cylindrical 14x51mm and 22x58mm fuses
- Standard mechanical indicator for fuse presence and blown fuse status
- Optional microswitches for remote blown fuse indication
- Padlocking capability for secure operation
- Rated 750VAC/DC, 50A (14x51mm) / 125A (22x58mm), 200kA SCCR
- UL Recognized Component and CSA Certified
Specifications
Amperage Rating | 50 A |
Application | All circuits up to 750V requiring semiconductor fuses for protection of small inverters, UPS systems, motor drives, etc… |
Brand Name | Ferraz Shawmut |
Class | Accessory |
Current Rating | 50 A |
Family Code | 151 |
Family Description | UltraSafe Holders |
IP Rating | IP20 |
Poles | 1 |
Series | UltraSafe US14/US22 |
Size | 14x51mm / 22x58mm |
Special Features | Finger-safe; Optional blown fuse indicator lights; Optional microswitches; DIN-rail mount; Compact footprint; Quick, easy fuse change-outs |
Standard | UL Recognized Component to standard 4248-1, File E52283; CSA Certified C22.2, Class 6225, File 32169; IEC Compliant to 60269-2-1, 60947-3 |
Type | UltraSafe |
Voltage Rating | 750 VAC |
C331156
Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20
9T58K0000G24
Unclassified Transformrs. Small Core & Cl Tran. 9t58 Ip C&C Kit Xfrmr. Fuse Kits For EncapsulTED Xfmrs. 0000G24
LEBJJ
1POLE INLINE FUSEHLDR W/COPPER SET SCR. The Littelfuse 600 V in-line watertight fuse holders are the ideal answer for all high humidity and corrosive environments where fuses are required. Available in both breakaway and non-breakaway, single and double pole versions, these fuse holders allow maximum flexibility for any application. Applications: Street, alley, and parking lot lighting. Security and perimeter lighting. Traffic signals. Outdoor illuminated signs. Sports lighting. Boat electrical circuits. Tractors and yard equipment. General outdoor circuit protection. Benefits: Safety-Permits individual fixture or device to be disconnected from circuit for servicing. Eliminates possibility of shock. Individual fixture fusing-Prevents loss of one fixture through accident, vandalism, or end of life from darkening the entire circuit. Simplifies maintenance- Being able to immediately identify the one faulted fixture eliminates testing the entire circuit, speeds repair and permits servicing the individual unit while the rest of the circuit is functioning. Reduces damage from fault-Can prevent faulted ballast or other failure from severely damaging fixture or device, reducing necessary repair or need of replacement. Features: Watertight-Internal O-ring provides watertight seal. Superior terminal seeds-Ultrasonically-welded terminals provide maximum strength and eliminate leaking at terminals. Break-Resistant- Fiberglass –reinforced polymer body resists damage from dropping or impact much better than phenolic look-alikes. Flexible terminations-Accommodates a wide range of stranded or solid copper conductors, with either crimp or screw terminals. One-pole and two-pole models- available to accommodate all system voltages up to 600v.
IP20
Terminal Covers (2 Covers Per Kit). Field installed primary and secondary IEC Touch Proof Cover Kit.
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.