Mersen & Ferraz Shawmut FAQ
Answers to common questions about Mersen fuses, ordering through Gross Automation, fuse selection, and cross-referencing from other brands.
Who manufactures the products on this site?
All products on this site are manufactured by Mersen, a global company formerly known as Ferraz Shawmut. Mersen specializes in electrical power and advanced materials, including industrial fuses, circuit protection devices, and power semiconductors.
Who is Gross Automation?
Gross Automation is an authorized distributor of Mersen products. Gross Automation is located in Brookfield, Wisconsin and distributes industrial automation and electrical components. This microsite, mersensales.com, is operated by Gross Automation as a technical reference and ordering gateway for the Mersen product line.
What is the relationship between Mersen and Ferraz Shawmut?
Ferraz Shawmut is the former name of Mersen's electrical protection division. Mersen acquired and rebranded the Ferraz Shawmut product line. Products previously sold under the Ferraz Shawmut name are now manufactured and sold by Mersen. Legacy part numbers and catalog designations remain valid.
How do I order Mersen products?
To order Mersen products, visit the Gross Automation website at grossautomation.com or submit a quote request through this site. Pricing, availability, and lead times are provided by Gross Automation upon request.
How do I get pricing for Mersen fuses?
Pricing is available through Gross Automation. Submit a quote request on this site or search for specific products on grossautomation.com. This microsite does not publish pricing directly.
How do I select the right fuse for my application?
Fuse selection depends on voltage rating, current rating, interrupting capacity, fuse class, and the specific application requirements. Use the product catalog on this site to review specifications, or contact Gross Automation for application engineering support.
What fuse classes does Mersen offer?
Mersen manufactures fuses in all major North American classes including Class J, Class RK1, Class CC, Class T, Class L, Class H, Class K, and Class R. Mersen also produces European IEC/DIN fuses, semiconductor fuses, medium voltage fuses, and specialty fuses for applications such as photovoltaic systems and mining equipment.
Does Mersen make fuse holders?
Yes. Mersen manufactures the UltraSafe line of fuse holders, which provide enclosed, finger-safe fuse replacement to reduce arc flash risk. Mersen also produces standard fuse blocks, DIN rail fuse bases, disconnect switches, and power distribution blocks.
What is the UltraSafe fuse holder?
UltraSafe is Mersen's line of fully enclosed fuse holders designed to eliminate arc flash exposure during fuse replacement. UltraSafe holders are available for Class J, Class CC, midget, and other fuse classes, and are used in industrial environments where maintenance safety is a concern.
Can I cross-reference competitor fuse part numbers to Mersen equivalents?
Yes. This site includes a cross-reference tool that helps identify Mersen equivalents for fuses from other manufacturers. You can also contact Gross Automation for cross-reference assistance on specific part numbers.
Where can I find technical datasheets for Mersen products?
Technical datasheets and product documentation are available on individual product pages on this site in PDF format. For additional documentation, visit the Mersen corporate website or contact Gross Automation.
Does this site sell products directly?
No. This site is a technical reference and product catalog operated by Gross Automation. All sales, pricing, and fulfillment are handled through Gross Automation at grossautomation.com.
Still have questions?
Contact Gross Automation for product selection assistance, pricing, or technical support.