Mersen F331159 - Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 22x58 1-Pole Visual Indicator Pressure Plate IP20
Mersen

F331159

Alternate Item Number: US221I

UPC: 782001311261

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Minimum Qty: 6

Multiplier: 6

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Overview

The Mersen UltraSafe™ F331159 fuse holder (SKU: F331159) is a high-performance, UL-certified modular fuse holder designed for 22x58mm cylindrical fuse links, including A70QS and URD types. Engineered for industrial applications up to 800VAC and 1000VDC, this single-pole fuse holder delivers exceptional safety and reliability with a finger-safe IP20 rating per IEC standards. The pressure plate design enables tool-free fuse insertion and removal, reducing maintenance time by up to 40% compared to traditional fuse holders. Key features include an optional visual blown-fuse indicator and compatibility with microswitches for remote monitoring, allowing operators to track fuse status without physical inspection. The holder supports DIN-rail mounting with a unique latching system for easy repositioning and multi-pole field assembly using pin-tie kits. Constructed from durable thermoplastic or thermoset materials, the F331159 meets UL4248, CSA C22.2, and IEC 60269-1/60947-3 standards, ensuring compliance for global deployments. Ideal for semiconductor protection in UPS systems, motor drives, inverters, and low-voltage distribution panels, the F331159 supports circuits up to 125A with a 200kA SCCR rating. The compact footprint and modular design minimize panel space while maximizing flexibility for single or multi-pole configurations. Optional padlocking capabilities enhance safety during maintenance, and the sealable design prevents accidental fuse ejection in high-vibration environments. Backed by Mersen’s reputation for industrial-grade components, the F331159 is distributed by Gross Automation for immediate availability. For applications requiring remote indication or no-load disconnect functionality, this fuse holder provides a robust, code-compliant solution with minimal installation complexity.
  • Finger-safe IP20 protection per IEC standards
  • Tool-free fuse insertion/removal with pressure plate
  • Supports 22x58mm fuses (A70QS, URD compatible)
  • Optional visual blown-fuse indicator and microswitches
  • DIN-rail mountable with multi-pole field assembly capability

Specifications

AC Voltage Rating
800 V
Amperage Rating
125 Amps
Application
All circuits up to 750VAC for protection of motors, transformers, low voltage distribution, control circuits Non-load operation
Brand Name
Mersen
Connection
Pressure Plate
DC Voltage Rating
1000 V
Material
Polyamide
Maximum Operating Temperature
60 C
Minimum Operating Temperature
-25 C
Mounting
DIN rail acc. EN 60715
Number Of Poles
1
Operating Temperature, Maximum
140 F
Operating Temperature, Minimum
-13 F
Size
3.01 x 1.38 x 5.02;76.5 x 35 x 127.5 in;mm
Special Features
Finger safe Degree of protection: IP20 Optional visual blown fuse indicator & microswitch DIN rail mounting Modular design Lockable Multi-pole assembly kit available Sealable in closed and open position Plastic material UL94V2 mini Flame retardant materials with glow wire flammability index to 960°C
Standard
UL Recognized Component, UL4248, guide IZLT2, file E52283 CSA Certified C22.2, class 6225, file 32169 IEC 60269-2 and IEC 60947-3 RoHS Compliant Plastic material: NF 16101 & 16102 Requirement 2 Compliant
Sub Brand
UltraSafe™
Type
UL/CSA Fuse Holders
Package Dimensions (L x W x H)
3.01 in x 1.38 in x 5.02 in
Package Dimensions (L x W x H)
76.5 mm x 35 mm x 127.5 mm
Package Weight (Imperial)
0.478 lb
Package Weight (Metric)
0.217 kg
Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 22x58 1-Pole Pressure Plate IP20

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Z1006203

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G331160

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C331156

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K331163

Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 22x58 2-Pole Pressure Plate IP20 IP20
Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 22x58 2-Pole 2x Microswitch Pressure Plate IP20

M331165

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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.