Authorized Mersen Distributor
Mersen X078910 - Miniature Fuses Size 6.3x32 400V 1A Medium time-lag SA Clip Mounting
More images

Mersen X078910 Miniature Fuses Size 6.3x32 400V 1A Medium time-lag SA Clip Mounting

Alternate Item Number: MI6SA40V1


Documents & Media
Specification Sheet

Contact for Pricing

Minimum Qty: 50

Multiplier: 50

*Contact for lower quantities*

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

Mersen X078910 miniature fuses (6.3x32 mm) deliver precise overcurrent protection for sensitive electronic circuits. Rated at 400V and 1A with medium time-lag (SA) characteristics, these fuses are engineered to safeguard semiconductor devices, control circuits, and power supplies from sustained overloads while tolerating brief inrush currents typical in electronic systems. The SA time-lag profile ensures fast response to fault conditions without nuisance tripping during transient surges, balancing protection and reliability. Available with or without trip indicators for visual fault detection, these fuses mount via clip mounting in compact enclosures, ensuring easy installation and replacement. The 6.3x32 mm form factor ensures compatibility with standard fuse holders and panels, making them ideal for space-constrained applications including power supplies, motor controllers, automation systems, and industrial control panels where precise protection is critical. Designed for high-reliability environments, the X078910 provides consistent performance in electronic and electrical systems requiring dependable overcurrent protection.
  • Size: 6.3x32 mm miniature fuse
  • Voltage rating: 400V
  • Current rating: 1A with medium time-lag (SA) characteristics
  • Mounting type: Clip mounting for compact enclosures
  • Breaking capacity: High for reliable fault interruption

Specifications

Current Rating
1 A
Mounting Type
Clip Mounting
Series
SA
Size
6.3x32
Voltage Rating
400 V
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
Miniature fuse GGM - Fast-Acting 250VAC 1A Size 5x20 Ferrule

GGM1

Miniature fuse GGM - Fast-Acting 250VAC 1A Size 5x20 Ferrule
VERY FAST-ACTING PICO II LEADS 3.5A. The PICO® II Very Fast-Acting Fuse is designed to meet an extensive array of performance characteristics in a space-saving subminiature package. Features: Very fast-acting. Small size. Wide current rating range (62mA- 15A). RoHS compliant. Halogen-free available. Wide operating temperature range. Low temperature rerating.

25103.5L

VERY FAST-ACTING PICO II LEADS 3.5A. The PICO® II Very Fast-Acting Fuse is designed to meet an extensive array of performance characteristics in a space-saving subminiature package. Features: Very fast-acting. Small size. Wide current rating range (62mA- 15A). RoHS compliant. Halogen-free available. Wide operating temperature range. Low temperature rerating.
Miniature Fuses Size 6.3x32 250V 2A Medium time-lag SA Clip Mounting

X084407

Miniature Fuses Size 6.3x32 250V 2A Medium time-lag SA Clip Mounting
Miniature Fuses Size 6.3x32 220V 5A Super slow (TT) HA 25 Clip Mounting

Y090802

Miniature Fuses Size 6.3x32 220V 5A Super slow (TT) HA 25 Clip Mounting
Miniature Fuses Size 6.3x32 220V 4A Super slow (TT) HA 25 Clip Mounting

X090686

Miniature Fuses Size 6.3x32 220V 4A Super slow (TT) HA 25 Clip Mounting
Miniature Fuses Size 6.3x32 250V 2.5A Medium time-lag SA Clip Mounting

Y084408

Miniature Fuses Size 6.3x32 250V 2.5A Medium time-lag SA Clip Mounting
Miniature Fuses Size 6.3x32 500V 2.5A Medium time-lag SA Clip Mounting

Y098208

Miniature Fuses Size 6.3x32 500V 2.5A Medium time-lag SA Clip Mounting
Miniature Fuses Size 6.3x32 220V 6.3A Super slow (TT) HA 25 Clip Mounting

Y090687

Miniature Fuses Size 6.3x32 220V 6.3A Super slow (TT) HA 25 Clip Mounting

Frequently Asked Questions

What is the voltage rating of this fuse?

The fuse is rated for 400V operation.

Is this fuse suitable for semiconductor protection?

Yes, the SA time-lag design is optimized for semiconductor devices.

Does this fuse have a trip indicator?

Some references include a trip indicator for visual fault detection.

What does SA time-lag mean?

SA time-lag allows brief surges while protecting against sustained overcurrent.

What is the breaking capacity of this fuse?

The fuse offers a very high breaking capacity to handle inrush currents.

Is this fuse compatible with DIN rail mounting?

The fuse is designed for clip mounting, typically compatible with standard fuse holders.

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.