Mersen STXR240P05A The Mersen Surge-Trap STXR Series STXR240P05A is a UL listed Type 1 Surge Protective…
Alternate Item Number: STXR240P05A
UPC: 782001511982
Contact for Pricing
Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.
Overview
- UL listed Type 1 Surge Protective Device (SPD) compliant with UL1449 5th Edition
- TPMOV® technology for enhanced safety and reliable surge suppression
- Compact design allows flexible installation on line or load side
- Protects branch panels and individual equipment from transient voltage surges
- Manufactured in the US with UNSPSC code 39121610 for broad compatibility
Specifications
Application | Branch panel and/or individual equipment protection Commercial and Industrial Distribution Panels Control Panels |
Frequency Rating | 50/60 HZ |
Material | Polycarbonate |
Mounting | Panel Mount |
Mounting Type | Line or Load Side |
NEMA Rating | Type 1 |
Operating Temperature, Maximum | 185 F |
Operating Temperature, Maximum | 85 C |
Operating Temperature, Minimum | -40 F |
Operating Temperature, Minimum | -40 C |
Series | STXR |
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 UL96A Lightning Protection RoHS Compliant |
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 |
Package Dimensions (L x W x H) | 3.25 in x 3.35 in x 3.35 in |
Package Dimensions (L x W x H) | 82.55 mm x 85.09 mm x 85.09 mm |
Package Weight (Imperial) | 1.600 lb |
Package Weight (Metric) | 0.726 kg |
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Frequently Asked Questions
What type of technology does Mersen's Surge-Trap devices use?
Mersen's Surge-Trap devices utilize Thermally Protected MOV (TPMOV®) technology for enhanced safety and reliability.
What is the operating temperature range for Surge-Trap STZ Series?
The operating and storage temperature range for the Surge-Trap STZ Series is –31ºF (–35ºC) to +185ºF (85ºC).
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 warranty period for the Surge-Trap STZ Series?
The Surge-Trap STZ Series comes with a 15-year product warranty.
What is the response time for Surge-Trap devices?
The response time for Surge-Trap devices is less than 1 nanosecond per phase.
What is the Short Circuit Current Rating (SCCR) for STXT and STXP series?
The Short Circuit Current Rating (SCCR) for both the STXT and STXP series is 200kA.
What is the warranty for the Surge-Trap STXT and STXP Series?
The Surge-Trap STXT and STXP Series both have a 10-year manufacturer's warranty.
What is the warranty for the Surge-Trap STXR Series?
The Surge-Trap STXR Series comes with a 5-year manufacturer's warranty.
What is the maximum continuous operating voltage (MCOV) for STXT240S20?
The MCOV for the STXT240S20 is 150V L-N, 150V L-G, 300V L-L, and 150V N-G.
What is the NEMA rating for the Surge-Trap STXT, STXP, and STXR enclosures?
The Surge-Trap STXT, STXP, and STXR series feature NEMA 4X non-metallic enclosures.
How to Install the STXR240P05A Surge Protective Device (SPD)
Installation guide for mounting and wiring the STXR240P05A Surge Protective Device (SPD).
Estimated time: 45m
Tools needed:
Screwdriver, Wire strippers, Multimeter
Supplies needed:
Mounting screws, Terminal connectors, Watertight fittings (for outdoor applications)
- Verify System Compatibility
Confirm that the system voltage and configuration match the SPD's voltage and configuration. Refer to the product's nameplate or datasheet for specific values.
- De-energize Power
Turn off all power supplying the equipment. Verify that the equipment and all power sources are de-energized before proceeding. Follow safe electrical work practices and use appropriate PPE.
- Determine Mounting Location
Select a mounting location for the SPD that is as close to the equipment as possible, keeping leads straight and short. If using a breaker, identify its location (a 30A breaker is recommended). Position the SPD so the LED status indicator is visible.
- Mount the SPD
Mount the SPD according to Figure 1. For NEMA 4X installations, use appropriate customer-supplied gasket, fittings, and/or conduit to maintain the rating.
- Make Electrical Connections
Make electrical connections according to Figure 2. For optimum performance, trim leads to the shortest possible length, avoiding loops, coils, and sharp bends. For outdoor applications, ensure watertight connections using appropriate fittings.
- Energize and Verify Operation
Energize the system and confirm the proper operation of the green LED status indicator. A green LED indicates the unit is functioning correctly. If the LED is off, the unit may be damaged, the circuit may be de-energized, or the SPD leads may be disconnected.
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.