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Mersen Y078911 - Miniature Fuses Size 6.3x32 400V 1.25A Medium time-lag SA Clip Mounting
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Mersen Y078911 Miniature Fuses Size 6.3x32 400V 1.25A Medium time-lag SA Clip Mounting

Alternate Item Number: MI6SA40V1.25


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Specification Sheet

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Multiplier: 50

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Overview

The Mersen SA Series miniature fuse, SKU Y078911, is engineered for precise overcurrent protection in electrical and electronic systems. This fuse features a 1.25 Ampere (A) current rating and a 400 Volt (V) AC voltage rating, making it suitable for a range of industrial and commercial applications. Its 6.3x32mm physical size conforms to standard dimensions for easy integration, and the clip mounting design facilitates secure and straightforward installation within fuse holders. The SA series is characterized by its medium time-lag (also known as slow-blow) characteristic. This design is crucial for protecting sensitive components, such as semiconductor devices, control apparatus, and electronic circuits, from damaging overcurrents and short circuits. The medium time-lag allows for temporary, short-duration inrush currents that are common during equipment startup or transient events, preventing nuisance tripping while still providing robust protection against sustained overloads. Mersen's commitment to quality ensures a high breaking capacity, offering reliable safety by safely interrupting fault currents. This fuse is an essential component for maintaining the operational integrity and longevity of protected equipment. Specific references may be available with or without a trip indicator for visual fault indication.
  • Mersen SA Series Miniature Fuse
  • 1.25 Ampere (A) Current Rating
  • 400 Volt (V) AC Voltage Rating
  • 6.3x32mm Physical Size
  • Clip Mounting for Easy Installation

Specifications

Package Dimensions (L x W x H)
1.26 in x 0.25 in x 0.25 in
Package Dimensions (L x W x H)
32 mm x 6.3 mm x 6.3 mm
Package Weight (Imperial)
0.0060 lb
Package Weight (Metric)
0.0020 kg
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FUSE 125V ALARM FUSE .250A. Color-coded indicator flags indicate ampere rating. Body is constructed of black polyphenylene sulfide with UL-94V0 flammability rating, contacts are of bright alloy-plated beryllium copper. Ideal for telecommunications and control panel circuits.Eliminates down time by immediately pinpointing the blown (open) circuit while triggering LED or audio alarm, while placed in mating holder (482 Series). Clear plastic lens option available for additional safety.

0481.250V

FUSE 125V ALARM FUSE .250A. Color-coded indicator flags indicate ampere rating. Body is constructed of black polyphenylene sulfide with UL-94V0 flammability rating, contacts are of bright alloy-plated beryllium copper. Ideal for telecommunications and control panel circuits.Eliminates down time by immediately pinpointing the blown (open) circuit while triggering LED or audio alarm, while placed in mating holder (482 Series). Clear plastic lens option available for additional safety.
FUSE 125V ALARM FUSE .650A. Color-coded indicator flags indicate ampere rating. Body is constructed of black polyphenylene sulfide with UL-94V0 flammability rating, contacts are of bright alloy-plated beryllium copper. Ideal for telecommunications and control panel circuits.Eliminates down time by immediately pinpointing the blown (open) circuit while triggering LED or audio alarm, while placed in mating holder (482 Series). Clear plastic lens option available for additional safety.

0481.650V

FUSE 125V ALARM FUSE .650A. Color-coded indicator flags indicate ampere rating. Body is constructed of black polyphenylene sulfide with UL-94V0 flammability rating, contacts are of bright alloy-plated beryllium copper. Ideal for telecommunications and control panel circuits.Eliminates down time by immediately pinpointing the blown (open) circuit while triggering LED or audio alarm, while placed in mating holder (482 Series). Clear plastic lens option available for additional safety.
FUSE 125V ALARM FUSE 3.5A. Color-coded indicator flags indicate ampere rating. Body is constructed of black polyphenylene sulfide with UL-94V0 flammability rating, contacts are of bright alloy-plated beryllium copper. Ideal for telecommunications and control panel circuits.Eliminates down time by immediately pinpointing the blown (open) circuit while triggering LED or audio alarm, while placed in mating holder (482 Series). Clear plastic lens option available for additional safety.

048103.5V

FUSE 125V ALARM FUSE 3.5A. Color-coded indicator flags indicate ampere rating. Body is constructed of black polyphenylene sulfide with UL-94V0 flammability rating, contacts are of bright alloy-plated beryllium copper. Ideal for telecommunications and control panel circuits.Eliminates down time by immediately pinpointing the blown (open) circuit while triggering LED or audio alarm, while placed in mating holder (482 Series). Clear plastic lens option available for additional safety.

Frequently Asked Questions

What is the ampere range for these fuses?

The ampere range for these fuses is from 0.1A to 10A.

What is the size of these miniature fuses?

These fuses are size 6x32mm.

What is the rated voltage for these miniature fuses?

The rated voltage for the 6x32 SA 400V miniature fuses is 400V AC.

What is the size of these miniature fuses?

These fuses are size 6x32mm.

What is the rated voltage for these miniature fuses?

The rated voltage for the 6x32 SA 400V miniature fuses is 400V AC.

What is the ampere range for these fuses?

The ampere range for these fuses is from 0.1A to 10A.

What is the breaking capacity of these fuses?

The rated breaking capacity for these fuses is 50 kA AC.

What is the characteristic of these SA fuses?

These fuses have a medium time-lag (SA) characteristic.

What is the breaking capacity of these fuses?

The rated breaking capacity for these fuses is 50 kA AC.

What is the characteristic of these SA fuses?

These fuses have a medium time-lag (SA) characteristic.

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.