1. UltraSafeTM Fuseholder with CAGE CLAMP® spring terminal technology
USG Series
UltraSafeTM Fuseholder with CAGE CLAMP® spring terminal technology

2. USG Series Fuseholder
Mersen introduces the new USG Series UltraSafeTM fuseholders with screw-less, spring pressure, wire termination technology
Mersen’s new USGCC (class CC) & USGM (midget) series fuseholders deliver the ultimate ease-of-use, total cost saving, and reliable solution available in the marketplace
Mersen is the first manufacturer to offer spring terminal technology into a power fuseholder, delivering the best of both technologies to its customers

3. USG Series Fuseholder Mersen Spring Terminals versus Screw Terminals
Wire retention spring reinforces high contact pressure
Wire surrounded on all four sides
“S” bend provides defined contact area

4. USG Series Fuseholder Spring Terminals versus Screw Terminals
Technology
Spring
Screw
Reliability
Spring terminals are dynamic, able to compensate for changes in the environment. Maintenance free.
Screw terminals are static, contact pressure will weaken over time. Require periodic maintenance.
Cost
Reduce installation time by up to 75%, install wires in seconds
Requires additional tools and security tests to validate connections
Ease-of-Use
No tools required, superior connection every time regardless of operator skill level
Requires screw-driver and torque wrench

5. USG Series Fuseholder Summary of Features and Benefits* Higher
Reliability
Low contact resistance
Superior performance under vibration
Corrosion resistant
Superior performance under temperature cycling
Lower
Total Cost
Reduce installation time by up to 75%
Maintenance Free
Increased
Ease-of-Use
No tool required
Superior connection independent of operator skill
*For details of features and benefits view the Spring Terminal Learning Module

6. USG Series Fuseholder Product Offering
Three offerings within the USG family
USGCC series
for use with class CC fuses
USGM series
for use with midget class fuses
USGM-HEL series
for use with photovoltaic midget class fuses

7. USG Series Fuseholder Product Ratings
Global Certifications up to 32A – 750VAC/1000VDC, 200kA SCCR
Certified for copper conductors rated up to 90°C
UL approved for dual conductors
No torque ratings!
Degree of Protection = IP20

8. US G M 1 I USG Series Fuseholder Catalog Number Selection* UltraSafe
Spring Terminal US G M 1
Fuse Class
M = midget
CC = class CC
No of Poles
1 = 1-Pole
2 = 2-Pole
3 = 3-Pole
4 = 4-Pole I
Indicator
BLANK = None
I = Indicator
*Special configurations available – consult data sheet

9. Modular Field Assembly Kit
USG Series Fuseholder
Accessories
Modular Field Assembly Kit
Test Plug Adapter
Wire Marker Adapters

10. Product Family Brochure
USG Series Fuseholder
Available Tools
ep-us.mersen.com
Data Sheet
Training Modules
Product Video
Product Family Brochure
Accessories Guide