Mersen K220073 - Mersen PS modular fuseholders offer the highest levels of safety and features for 27x60mm fuses. The PS range is available in 1, 2, 3 or 4-pole units, with or without blown-fuse indicating microswitches in each pole (striker fuse required) 690 Volts 125 Amps 3 pole .
Mersen

K220073

Alternate Item Number: 3605340241747

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Overview

The Mersen PS Series modular fuseholder (SKU: K220073) delivers precise electrical protection for industrial circuits requiring 27x60mm fuses. Engineered for 690V and 125A applications, this 3-pole unit ensures reliable operation in motor control centers, power distribution panels, and heavy machinery. The modular design supports 1, 2, 3, or 4-pole configurations, allowing specifiers to match circuit requirements exactly. A key feature is the optional blown-fuse indicating microswitch, which provides immediate visual or electrical notification of a blown fuse when paired with a compatible striker fuse. This proactive indication minimizes downtime by enabling rapid fault identification in complex systems. The fuseholder is designed for finger-safe operation per IEC standards, achieving an IP20 protection grade for enhanced safety during fuse replacement. Constructed from UL94V2 flame-retardant thermoplastic with a glow wire flammability index of 960°C, the PS Series withstands harsh industrial conditions including vibration, temperature fluctuations, and chemical exposure. Installation is simplified with DIN rail mounting or direct board mounting options, and multi-pole units can be field-assembled using pin-ties assembly kits. The PS Series is compatible with 27x60mm ferrule fuses and meets stringent international safety standards for industrial electrical protection.
  • 3-pole configuration for three-phase circuit protection
  • Rated for 690V and 125A with 27x60mm ferrule fuse compatibility
  • Optional blown-fuse indicating microswitch for remote fault detection
  • Finger-safe IP20 protection grade per IEC standards
  • DIN rail or direct board mounting with UL94V2 flame-retardant construction

Specifications

Amperage Rating
125 A
Brand Name
Ferraz Shawmut
Connection
Screw Mount
Special Features
Solid assembly offers good thermal and mechanical withstand rating Fuse mounting in holders or no-load disconnectors with or without open fuse indicating Microswitches Phenolic resin models for basic applications, fiber-glass polyester for applications in corrosive atmospheres or applications for traction
Standard
UL Recognized Component to standard 4248-1, File E113368
Type
Semiconductor Fuseholders And Blocks
Voltage Rating
690 VAC
Mersen PS modular 1500V fuseholders offer the highest levels of safety and features for 20x127mm fuses. The PS range is available in 1, 2, 3 or 4-pole units, with or without blown-fuse indicating microswitches in each pole (striker fuse required) 2500 Volts 125 Amps 3 pole .

H097228

Mersen PS modular 1500V fuseholders offer the highest levels of safety and features for 20x127mm fuses. The PS range is available in 1, 2, 3 or 4-pole units, with or without blown-fuse indicating microswitches in each pole (striker fuse required) 2500 Volts 125 Amps 3 pole .
Mersen PS modular fuseholders offer the highest levels of safety and features for 27x60mm fuses. The PS range is available in 1, 2, 3 or 4-pole units, with or without blown-fuse indicating microswitches in each pole (striker fuse required) 690 Volts 10 Amps 3 pole with microswitch.

P220077

Mersen PS modular fuseholders offer the highest levels of safety and features for 27x60mm fuses. The PS range is available in 1, 2, 3 or 4-pole units, with or without blown-fuse indicating microswitches in each pole (striker fuse required) 690 Volts 10 Amps 3 pole with microswitch.
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M331073

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T331102

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W331104

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N1001455

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X331174

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N226424

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W210584

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Mersen PS modular 1500V fuseholders offer the highest levels of safety and features for 20x127mm fuses. The PS range is available in 1, 2, 3 or 4-pole units, with or without blown-fuse indicating microswitches in each pole (striker fuse required) 2500 Volts 125 Amps 2 pole with microswitch.

D097293

Mersen PS modular 1500V fuseholders offer the highest levels of safety and features for 20x127mm fuses. The PS range is available in 1, 2, 3 or 4-pole units, with or without blown-fuse indicating microswitches in each pole (striker fuse required) 2500 Volts 125 Amps 2 pole with microswitch.

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.