Mersen STXR600Y05A The most popular range in the STX series offering, the Surge-Trap® Type 1 STXR meets…
Alternate Item Number: STXR600Y05A
UPC: 782001470388
Contact for Pricing
Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.
Overview
- UL1449 Fourth Edition compliant Type 1 Surge Protection Device
- Features Mersen's advanced TPMOV® technology for enhanced safety
- Rated for 600Y/347V with 50 kA surge current per phase
- Supports L-G, L-N, and L-L protection in 3-Phase Wye systems
- Compact design with LED status and remote audible alarm
Specifications
Application | Branch panel and/or individual equipment protection Commercial and Industrial Distribution Panels Control Panels |
Brand Name | Mersen |
Connection | Pre-wired with 3 ft 12 AWG conductors |
Connection | Pre-wired |
Frequency | 50-60 Hz |
Frequency Rating | 50/60 HZ |
Frequency Rating, Maximum | 60 Hz |
Frequency Rating, Minimum | 50 Hz |
Insulation | Polycarbonate |
Material | Polycarbonate |
Mounting | Panel Mount |
Operating Temperature, Maximum | 185 F |
Operating Temperature, Maximum | 85 C |
Operating Temperature, Minimum | -40 F |
Operating Temperature, Minimum | -40 C |
Phase | 3- |
Short Circuit Rating | 200 kA |
Short-Circuit Rating | 200 kA |
Size | 3.25 x 3.35 x 3.35;82.55 x 85.09 x 85.09 in;mm |
Special Features | Designed with the industry leading Mersen TPMOV® Technology LED status indicator (ON = Good, OFF = Replace) NEMA 4X enclosure for outdoor or indoor use Fits 3/4" knockouts with 3' leads for easy installation Optional mounting bracket for surface mount applications 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 optional, N-G optional) 5-year warranty |
Special Features | Designed with industry leading Mersen TPMOV technology Optional mounting bracket for surface mount applications NEMA 4X enclosure for outdoor or indoor use Fits 3/4" knockouts with 3' leads for easy installation Up to 10 modes of Protection (L-N, L-L, L-G optional, N-G optional) Bright LED status indicator, visible from side profile through clear cover 5-year manufacturer’s 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 |
Standard | ANSI/UL 1449 5th Edition, Type 1 SPD, File E210793 CSA C22.2, Type 1 SPD 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 | 600Y/347 V |
Package Weight (Imperial) | 1.600 L |
Package Weight (Metric) | 0.726 kg |

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What is the surge current rating for the STXR series?
The STXR series has a surge current rating of 50kA per phase and per mode.
What is the operating temperature range for Mersen Surge-Trap devices?
The operating and storage temperature range for these devices is -40ºF (-40ºC) to +185ºF (85ºC).
What type of technology does the STXR series incorporate for safety?
The STXR series incorporates Mersen's TPMOV technology, ensuring it is one of the safest options available.
What is the warranty period for the STXR series surge protection devices?
The STXR series comes with a 5-year manufacturer's warranty.
What are the installation options for the STXR series?
The STXR series offers flexibility for line or load installation and has an optional mounting bracket for surface mount applications.
What is the N-G protection option for the STXR series?
N-G protection can be added with the suffix 'N' and is suggested for installations over 10 ft from the service entrance.
What is the response time for the STXR series surge protection devices?
The response time for the STXR series is less than 1 nanosecond per phase.
What are the available system voltages for the STXR series?
The STXR series is available for system voltages ranging from 120VAC to 600VAC.
What is the Short Circuit Current Rating (SCCR) for the STXR series?
The Short Circuit Current Rating (SCCR) for the STXR series is 200kA.
Does the STXR series require additional overcurrent protection?
No, the STXR series does not require additional overcurrent protection.
How to Install the STXR600Y05A Surge Protective Device
This guide provides step-by-step instructions for installing the STXR600Y05A Surge Protective Device to protect your equipment from transient overvoltages.
Estimated time: 45m
Tools needed:
Screwdriver, Wire strippers, Multimeter
Supplies needed:
Mounting screws, Terminal connectors, Watertight fittings (if applicable)
- Confirm system voltage
Verify that the system voltage and configuration match the SPD voltage and configuration before proceeding with the installation.
- Turn off power
Ensure all power supplying the equipment is turned off and confirm that the equipment and all sources are de-energized to prevent electrical shock.
- Determine mounting location
Select a mounting location for the SPD that is as close to the equipment as possible, ensuring that leads are kept straight and short. If using a breaker, identify its location (recommended size is 30A) and position the SPD so that the LED status indicator is visible.
- Mount the SPD
Securely mount the SPD to the designated location using the appropriate mounting screws as per the installation diagram.
- Make electrical connections
Connect the electrical leads according to the wiring diagram provided. For optimal performance, trim the leads to the shortest length possible and avoid sharp bends or loops.
- Energize and verify operation
Turn the power back on and confirm the proper operation of the SPD by checking that the green LED status indicator is illuminated. If the LED is off, further investigation is needed.
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.

















