Mersen STXR120P05 The most popular range in the STX series offering, the Surge-Trap® Type 1 STXR meets…
Alternate Item Number: STXR120P05
UPC: 782001474270
Contact for Pricing
Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.
Overview
- UL 1449 5th Edition Type 1 SPD with 50kA surge capacity per phase/mode
- TPMOV® technology for advanced surge suppression and safety
- 120V AC system compatibility with L-G and L-N protection (optional L-L, L-G, N-G modes)
- NEMA 4X non-metallic enclosure for indoor/outdoor durability
- Pre-wired 36" leads for 3/4" knockout panel mounting; optional surface mount bracket
- LED status indicator (green = functional, OUT = replace) and 5-year warranty
- Operates from -40°C to +85°C, 0-95% non-condensing humidity
- 200kA SCCR; no additional overcurrent protection required
Specifications
Application | Branch panel and/or individual equipment protection Commercial and Industrial Distribution Panels Control Panels |
Brand Name | Mersen |
Connection | Pre-wired |
Connection | Pre-wired with 3 ft 12 AWG conductors |
Connection Type | Line or Load |
Frequency | Single Phase |
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 | 1 |
Poles | 1P |
Series | STXR |
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 |
Size | Compact |
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 |
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 |
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 |
UL SPD Type | Type 1 |
Voltage Rating | 120 V |
Package Weight (Imperial) | 1.500 L |
Package Weight (Metric) | 0.680 kg |
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Frequently Asked Questions
What certifications does the STXR120P05 meet?
The STXR120P05 meets ANSI/UL 1449 5th Edition Type 1 SPD, CSA C22.2 Type 1 SPD, and UL96A Lightning Protection standards.
What voltage range does the STXR120P05 support?
The STXR120P05 operates at 120V AC, with system voltage support ranging from 120V to 600V AC.
What is the operating temperature range for the STXR120P05?
The operating temperature range is -40°C to +85°C, with storage from -40°C to +85°C.
What are the lead lengths and wire gauge for the STXR120P05?
The STXR120P05 features pre-wired 36" (1m) leads with 10AWG wire gauge for easy installation.
What is the surge current rating of the STXR120P05?
The surge current rating is 50kA per phase and per mode, with a nominal discharge current of 20kA.
Can the STXR120P05 be used outdoors?
Yes, the NEMA 4X enclosure allows for outdoor or indoor use in wet or corrosive environments.
What does the LED indicator show on the STXR120P05?
The LED indicator shows green when the device is functional and 'OUT' when the device needs replacement.
What is the response time of the STXR120P05?
The response time is less than 1 nanosecond per phase, ensuring rapid surge suppression.
Does the STXR120P05 require additional overcurrent protection?
No, the STXR120P05 does not require additional overcurrent protection due to its 200kA SCCR rating.
What modes of protection does the STXR120P05 offer?
The STXR120P05 provides up to 10 modes of protection, including L-N, L-L, L-G, and N-G (optional modes vary by configuration).
How to Install the STXR120P05 Surge Protective Device
This guide provides step-by-step instructions for installing and configuring the STXR120P05 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 outdoor installation)
- Confirm system compatibility
Verify that the system voltage and configuration match the specifications of the STXR120P05 SPD.
- Turn off power
Ensure all power supplying the equipment is turned off and confirm that the equipment and all sources are de-energized.
- Determine mounting location
Choose a mounting location as close to the equipment as possible, ensuring that the LED status indicator will be visible.
- Mount the SPD
Secure the STXR120P05 SPD to the mounting surface using the provided mounting screws, ensuring it is level and firmly attached.
- Make electrical connections
Connect the SPD according to the wiring diagram, ensuring leads are trimmed to the shortest length possible and avoiding sharp bends.
- Energize the system
Turn the power back on and confirm the proper operation of the green LED status indicator. If the LED is off, check connections and troubleshoot as necessary.
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.