Mersen MHi-T High Temperature Bus Bars

October 27, 2020

Using a combination of polyaramid dielectric insulation and high temperature adhesive, MHi-T High Temperature Bus Bars are designed to respond to increased temperature rises in Wide Band Gap technology systems. While traditional laminated bus bars are limited to a working temperature of 105°C, Mersen's MHi-T bus bars allow for increased working temperatures up to 180°C.

Today’s customers turn to Wide Band Gap (WBG) technologies such as SiC and GaN based power modules to increase power densities in their drives and inverters designs. Due to their inherent nature, WBG modules introduce an increased level of heat into their laminated bus bars connectors. Increased temperature rises on standard laminated bus bars may cause partial or complete breakdown of the bonding agent (glue) of the insulation, causing the insulation to lift and separate from the conductor surface, creating potential unsafe shock or short circuit faults. Mersen MHi-T laminated bus bars address this increased temperature rise in WBG power modules with higher temperature tolerances.

Features and Benefits
- High operating temperature
- Operating temperatures.: -50°C to 180°C (Up to 200°C peak)
- According to UL tests: Insulation film RTI (220°C)

A fully qualified and standard compliant insulation film offer:
- REACH and RoHS
- CTI (400V)
- UL94 - Standard for Tests for Flammability of Plastic Materials for Parts in Devices and Appliances V0 certified
- EN45545-2 - Fire testing of materials and components for trains, Certified HL3 Class for R1 and R7

Electrical performances
- Insulation film CTI: 175-250V / Class 3 (Determined by UL)
- Electrical breakdown: >8kV

Applications
- Motor Drives, Rail, Photovoltaic, Wind, Aeronautics, UPS and Oil & Gas

Go HERE for more information.

Put to the Ultimate Test – Part 1: Torsion Tests by HELUKABEL

DCS Put to the Ultimate Test Part 1 Torsion Tests by HELUKABEL 1 400x275

Cables and wires in industrial robots and other moving machine parts are often required to withstand extreme stresses caused by torsion. Constant repetitive movements put materials under considerable strain. At the same time, operators expect components to function perfectly and reliably throughout their entire service life to avoid disruptions, outages and safety hazards.

For this reason, at HELUKABEL, we simulate intensive and continuous torsion stresses under realistic conditions with our high-tech testing equipment in Windsbach. We have several types of apparatus for doing this because some of our customers, for example those in the automotive industry, have very precise specifications for how a torsion test is carried out. The tests show that our cables and wires withstand speeds up to 1,000°/s, accelerations up to 2,000°/s² and torsion angles up to 720°. Hence, we make sure that each product always meets our customers’ high standards, and that they receive the impeccable quality they rightly expect from us as a leading supplier of cables, wires and accessories for more than 40 years.

What Is Torsion?

To learn the answer, click here

30 Minute Live Webinar 2:30 PM ET January 19th, 2023

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