Mersen STP240S07 The Mersen Surge-Trap Pluggable STP Series Surge Protective Device (SPD), SKU STP240S07…
Alternate Item Number: STP240S07
UPC: 782001477943
Contact for Pricing
Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.
Overview
- TPMOV® technology eliminates need for separate overcurrent protection
- 50kA surge current rating (Imax) and 200kA SCCR for robust protection
- Compact blue polycarbonate enclosure with UL94 V0 flammability rating
- Visual status indicator (green/red) and Form C dry contact remote monitoring
- Operates at 120–690VAC, 50/60Hz; supports 4–14AWG conductors
Specifications
Application | Industrial Control Panels Water treatment Smart grid & LV Metering Traffic / ITS applications. Intended for use on a wide range of low voltage applications inside appropriate enclosures |
Connection | Box |
Frequency Rating | 50/60 HZ |
Material | PET (Polyethelene Terphthalate) |
Mounting | DIN Rail |
Operating Temperature, Maximum | 185 F |
Operating Temperature, Maximum | 85 C |
Operating Temperature, Minimum | -40 F |
Operating Temperature, Minimum | -40 C |
Phase | Split Phase |
Response Time | <25 |
Size | 4.19 x 1.38 x 2.81;106.426 x 35.052 x 71.374 in;mm |
Special Features | Easy installation or retrofit DIN-rail mountable Fail-safe, self-protected design Remote indicator Visual indicator IP20 finger-safe design Small footprint No additional overcurrent protection devices required Easy to replace modules 2-year warranty |
Special Features | Designed with industry leading Mersen TPMOV technology Easy installation or retrofit Reversible chassis allows cable entry from top or bottom Replaceable modules with mechanical coding to avoid replacement errors 5-year warranty |
Standard | ANSI/UL 1449 5th Edition, Type 1 Component Assembly SPD, File E210793 CSA C221331certified Type 4-1, File 80032802 ANSI/IEEE C62.41.1, C62.41.2, C62.45 RoHS Compliant |
Standard | ANSI/UL 1449 5th Edition, Open Type 1 SPD Listed, File E210793 ANSI/IEEE C62.41.1, C62.41.2, C62.45 CSA C22.2 No. 269 Certified, File 162842 RoHS Compliant |
Type | DIN-RAIL UL CSA TYPE 1 |
UL SPD Type | Type 1 Component Assembly |
Package Dimensions (L x W x H) | 4.19 in x 1.38 in x 2.81 in |
Package Dimensions (L x W x H) | 106.426 mm x 35.052 mm x 71.374 mm |
Package Weight (Imperial) | 0.750 lb |
Package Weight (Metric) | 0.340 kg |
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Frequently Asked Questions
What voltage range does the STP240S07 support?
The device operates across a system voltage range of 120VAC to 690VAC at 50 or 60Hz.
What is the surge current rating of the STP240S07?
The STP240S07 has a surge current rating (Imax) of 50kA.
What wire sizes are compatible with the STP240S07?
The device supports 4–14AWG solid or stranded copper conductors.
What is the short circuit current rating (SCCR) of the STP240S07?
The SCCR for the STP240S07 is 200kA.
What is the response time of the STP240S07?
The device responds in less than 1 nanosecond per phase to transient voltage spikes.
How is the operational status of the STP240S07 indicated?
A visual status indicator shows green for functional and red for replacement needed. A Form C dry contact remote indicator is also included.
What applications is the STP240S07 designed for?
The STP240S07 is designed for industrial control panels, water treatment, smart grid, LV metering, and traffic/ITS applications.
Does the STP240S07 require separate overcurrent protection?
No, the device features Mersen’s TPMOV® technology and is a no-fuse, fail-safe design requiring no additional overcurrent protection.
Can the STP240S07 be mounted in any orientation?
Yes, the reversible chassis allows cable entry from either the top or bottom for flexible installation.
How to Install the STP240S07 Surge Protective Device
Installation guide for mounting and wiring the STP240S07 Surge-Trap® STP-50 and STP-75 series surge protective device.
Estimated time: 30m
Tools needed:
Screwdriver, Wire strippers
Supplies needed:
Mounting screws, Wire connectors
- 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 Sources
Turn off all power supplying the equipment. Verify that all power sources are de-energized before proceeding. DANGER: Failure to do so can result in death, serious injury, or equipment damage.
- Mount the SPD
Mount the SPD onto a 35mm DIN-rail or top-hat rail. Hook the line side over the rail and push the load side until the spring-loaded mounting clip clicks into place.
- Make Electrical Connections
Connect the electrical wiring according to the appropriate wiring diagram for your system configuration. Ensure interconnecting wires are kept to a minimum length and avoid looping or twisting conductors. Refer to the nameplate or datasheet for wire size and torque specifications.
- Install Optional Micro-Switch
If using the auxiliary micro-switch, install it according to its specific instructions.
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.