Contact for Pricing
Overview
- 240V, 3-Phase Delta system compatibility
- 200kA surge capacity per phase (UL 1449 Type 1)
- Integrated EMI/RFI filtering for transient noise reduction
- TPMOV® technology eliminates need for additional overcurrent protection
- Line or load side installation flexibility for service entrances and distribution panels
- Phase-by-phase LED indication and optional remote audible alarm
Specifications
Application | Service entrance at low to medium risk exposure level Commercial and Industrial Distribution Panels or Control Branch Panels Any critical application that requires a high to medium level of protection |
Brand Name | Mersen |
Connection | Pre-wired |
Connection Type | Line or Load Side |
Connection Type | Line or load side installation |
Current Rating | 20 A |
Current Rating | 200kA |
Frequency | 50-60 Hz |
Frequency Rating | 50/60 HZ |
Frequency Rating, Maximum | 60 Hz |
Frequency Rating, Minimum | 50 Hz |
Insulation | Polycarbonate |
Material | TPMOV |
Material | Polycarbonate |
Mounting | Panel or Wall Mount |
Mounting Type | Service entrance, distribution panels, branch circuits |
Mounting Type | Line or Load Side |
Mounting Type | Line or Load Side Installation |
Operating Temperature, Maximum | 185 F |
Operating Temperature, Maximum | 85 C |
Operating Temperature, Minimum | -40 F |
Operating Temperature, Minimum | -40 C |
Phase | 3- |
Poles | 3-Phase Delta |
Series | STXT |
Series | STX |
Short Circuit Rating | 200 kA |
Short-Circuit Rating | 200 kA |
Size | 7.4 x 7.08 x 3.68;187.96 x 179.832 x 93.472 in;mm |
Special Features | Designed with industry leading Mersen TPMOV technology Standard features include LED phase loss indication and EMI/ RFI filter Up to -50dB from 10kHz to 100MHz Optional Form C Dry Contacts and audible alarm with silence button Mounting hub and mounting feet for installation flexibility Up to 10 Modes of Protection 10-year manufacturer’s warranty |
Special Features | Designed with the industry leading Mersen TPMOV® Technology (internally fused) Premium 200kA surge capacity for longer life and higher single impulse withstand Includes EMI/RFI filter for cleaner attenuation LED status indicator (ON = Good, OFF = Replace) LED phase loss indicators (ON = Operational, OFF = Maintenance Required) NEMA 4X enclosure for outdoor or indoor use Mounting hub and mounting feet for installation flexibility Optional audible alarm and remote dry contacts For use in ANSI/UL Type 1 or 2 SPD installations Up to 10 Modes of Protection (L-N, L-L, L-G, N-G) 10-year warranty |
Standard | ANSI/UL 1449 5th Edition, Type 1 SPD, File E210793 CSA C22.2, Type 1 SPD ANSI/IEEE C62.41.1, C62.41.2, C62.45 UL96A Lightning Protection RoHS Compliant |
Type | NEMA UL CSA TYPE 1 |
Type Of Indicators | LED and Remote Audible Alarm |
UL SPD Type | Type 1 |
Voltage Rating | 240 V |
Package Weight (Imperial) | 4.200 L |
Package Weight (Metric) | 1.905 kg |
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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.