Mersen FS30J1 UL 98 Fusible Switch 347VAC Class J 30A 1-Pole
Alternate Item Number: FS30J1
UPC: 782001510909
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Overview
- UL 98 Class J fusible switch rated 347VAC, 30A, 1-pole
- 200kA SCCR with UL Listed Class J fuses
- Compact design reduces panel space by up to 30%
- Integrated LED fuse status indication and LOTO capability
- Supports Class J 30A and 60A fuses, 75°C CU wire compatible
Specifications
AC Voltage Rating | 347 V |
Application | Industrial control panels Data centers Main disconnects Motor branch circuit protection Fused Coordination Panels For use as a motor disconnect, see horsepower rating section |
DC Voltage Rating | 125 V |
Maximum Operating Temperature | 75 °C |
Minimum Operating Temperature | -40 °C |
Mounting Type | DIN Rail |
Number Of Poles | 1 |
Size | 5.19 x 1.33 x 4.1 in |
Special Features | Smaller footprint compared to a traditional Class J disconnect Accepts Class J 30A and 60A fuses for branch circuit protection 35mm DIN rail mounted Built-in lockout/tagout feature Integrated LED Fuse status indication 200kA SCCR rating 75°C CU Wire Factory & Field Wiring Minimum Indicator Voltage - 90V-AC and 12V-DC |
Standard | cULus Listed file No. WHTY. E483215 - UL 98 - Open type switches IEC 60529 degree of protection IP20 IEC 60947-7-3 |
Type | UL 98 Fusible |
Package Dimensions (L x W x H) | 5.19 in x 1.33 in x 4.1 in |
Package Dimensions (L x W x H) | 131.826 mm x 33.782 mm x 104.14 mm |
Package Weight (Imperial) | 0.558 lb |
Package Weight (Metric) | 0.253 kg |
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Frequently Asked Questions
What is the SCCR rating for the FS30J1?
The FS30J1 has a Short Circuit Current Rating (SCCR) of 200 kA AC and 100 kA DC.
What type of fuses does the FS30J1 accept?
The FS30J1 is designed for branch circuit protection using any UL Listed Class J fuse.
What is the horsepower rating for FS30J1 at 120VAC?
The FS30J1 has a 1.5 HP rating for 120VAC, 1 Phase applications.
What is the horsepower rating for FS30J1 at 240VAC?
The FS30J1 has a 3 HP rating for 240VAC, 1 Phase applications.
What is the horsepower rating for FS30J1 at 480VAC?
The FS30J1 has a 5 HP rating for 480VAC, 1 Phase applications.
What is the horsepower rating for FS30J1 at 600VAC?
The FS30J1 has a 10 HP rating for 600VAC, 3 Phase applications.
Does the FS30J1 have a lockout/tagout feature?
Yes, the FS30J1 includes a built-in lockout/tagout (LOTO) feature.
Does the FS30J1 have LED fuse status indication?
Yes, the FS30J1 features integrated LED fuse status indication.
What wire types are compatible with the FS30J1 terminals?
The FS30J1 is compatible with 75°C CU Wire or Higher (CU75) and accepts stranded or solid copper wire.
What is the voltage rating for the FS30J1?
The FS30J1 has a voltage rating of 347VAC for 1 pole and 125V DC.
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.